Model Boat Mayhem

The Shipyard ( Dry Dock ): Builds & Questions => Lifeboats => Topic started by: Tiny69 on September 13, 2016, 07:32:40 pm

Title: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on September 13, 2016, 07:32:40 pm
My next build is to be a Clyde Class Lifeboat at 1:24 scale.  Only three of the Clyde Class where ever built with the first two only having some slight differences whilst the third had a completely different superstructure similair to that of the Arun Class.  The vessels were 70ft long, the longest used by the RNLI, which will make the model 35 inches long. (890mm)

Breif History
Following visits by the RNLI's managers to the Netherlands and Germany which had successfully employed cruising lifeboats it was decided tosanction and build two permanently manned RNLI vessels.  The two boats went on trail in 1966 and in 1968 went on station with 70-001 stationed at Clovelly and 70-002 at Kirkwall.  70-003 was built some years later as a relief boat for the other two.

All three were is service with the RNLI until 1988 when they were sold on.  70-001 is in private owner ship currently in the Netherlands. 70-002 went to Reyjavik as part of the Icelandic Lifeboat Service before also being sold on into private ownership.  70-003 was sold on, modified and became the Gemini Explorer giving pleasure trips dolphin watching on the Moray Firth.

The model as mentioned will be 35 inches long with twin electric motors.  I have obtained a GA drawing from the RNLI and Section drawings from Mike (gribeauval) who was kind enough to send me a copy of the set he had.  I will be drawing my own set on the PC
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: gribeauval on September 13, 2016, 08:12:09 pm
Much better in 1/12th scale!! :-)) :-)) :-))
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: baloo on September 13, 2016, 09:19:30 pm
I think 70-002 is privately owned in Scotland,&70-004 is owned by trinity house
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Charlie on September 14, 2016, 09:23:37 am
Sounds good, i will look forward to seeing your build progress. The good thing about building in 1:24 scale is that you won't put your back out lifting the model ;) Which of the 3 boats are you going to build?


Charlie
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: spongie on September 14, 2016, 04:58:01 pm
technically no such thing as 70-004. However a forth Clyde "Lodesman" was built in the Netherlands for Trinity House. This is now owned by Roving Eye Enterprises: http://www.orkneyrovspecialist.co.uk/ (http://www.orkneyrovspecialist.co.uk/)


70-001 is in the Netherlands
70-002 is in Scotland
70-003 is in Scotland
Lodesman is in Scotland...


Seems like the place to be for a Clyde!!!
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: wicker on September 14, 2016, 06:40:28 pm
One based in Buckie and the other was at Troon or that area
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on September 14, 2016, 07:21:33 pm
I will be building the 70-001. Charles H Barrett.  To get this project started a set of plans were purchased from the RNLI consisting of a sheet with the plan and a sheet showing the profile. The are very detailed showing all the internal detail of the superstructure and hull drawn at 1/2 inch = 1 foot.  The down side to these drawings is there are only three cross sections which I feel is not enough to build an accurate hull.

A drawing showing more hull sections was required and I was fortunate to receive a set of hull lines from Mike (gribeauval) which are drawn at 1 inch = 1 foot, hence his comment about 1/12 being much better.  I like to build my models at 1/24 scale and the Clyde gives a good size model that will fit neatly in the boot of my car.  With these three drawings I have spent some time studying them to work out the best way to approach building a fully sailing model.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Liverbudgie2 on September 14, 2016, 08:13:39 pm
When I was working in Scotland a few years ago I was sent to Buckie, the job having taken all of 15 minutes to complete, meant that I had time to wonder around the harbour and what should I see but one of the Clyde class alongside.  I had already decided that I would wend my way home via McDuff and what should see there but another of the same class, or so I thought so, more images where obtained. Both towns are worth a visit if your in the area and would like to see some interesting vessels out of the water.

LB
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: BFSMP on September 15, 2016, 11:53:58 am
Actually, according to my friend neil, and plans available 70 001 was 70' long. but the other two were 71' long, and all three had different hull shapes varying from both above and below the boot topping. none in fact were the identical same in any way.

Have a look at the build blogs on the lifeboat section. they well date to prior July 2011 when they all took part in the Loch ness charity sail,in aid of the RNLI.

Jim.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on September 15, 2016, 06:09:24 pm
70-001 was 71ft long with a hull designed by Richard Oakley, whilst 70-002 was 70ft long with a hull designed by  Irish naval architect John Tyrrel.  The model I am building will be from the 70-001 plans and will measure 35 1/2 inches long.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: BFSMP on September 15, 2016, 06:28:46 pm
70-001 was 71ft long with a hull designed by Richard Oakley, whilst 70-002 was 70ft long with a hull designed by  Irish naval architect John Tyrrel.  The model I am building will be from the 70-001 plans and will measure 35 1/2 inches long.

sorry, yes got the measurements wrong way round.

However Oakley took credit for designing the boats, after Tyrrell originally designed the class of 3 with a transom stern, which the RNLI  objected to and Oakley redesigned to a design now seen.

How do I know this. I spoke to Mr Tyrrel personally many years ago when I was at one of the RNLI stations he visited.

Also, his relative who is a member of the Historic lifeboat face book page confirmed this to a member on that forum who has since been banned, by telling him that he has the original design blue prints of the original boats, handed down to him by Mr Tyrrell before he died, with transom stern and which the RNLI rejected.

Apparently the boat with transom stern would have been considerably faster that what she eventually was, but in their infinite wisdom the RNLI at the time wanted the boats to fit in with their concept of "double ender" boats and so the transom had to go.

So, Mr Oakley didn't design the boat, he just amended it, being the head RNLI designer at the time to what the RNLI wanted and took credit so Mr. Tyrrel himself told me.

Jim.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: BFSMP on September 15, 2016, 06:47:52 pm
I think 70-002 is privately owned in Scotland,&70-004 is owned by trinity house

she was sold on by a Mr Crosbie in November 2014 and is now over on the east coast near Perth.

Jim.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on September 18, 2016, 06:02:16 pm
Some interesting photo's and information in those posts above and it is good to know that all four ships are still around to this day although they are all preforming completely different roles.

Whilst studying the very detailed drawings I came to the conclusion that I would need to draw a simplified set to work from that would clearly show the main elements of the vessel.  Firstly a trip to the reprographics shop was required to have the paper copies scanned into an electronic format to be used in the AutoCAD program I use to draw all my drawings.  The scanned image is simply traced over using the CAD program but there is quite a bit of setting up to do before any drawing can take place.  The first step is to set up a number of layers, think of these as sheets of tracing paper laid on top of each, one of which the scanned images of the plan is placed on and locked.  The other layers are used to draw over the plans such as outlines, centre lines and hidden lines.  The next step the hull lines image was placed onto the layer and scaled to the size required, which in this case is a hull length of 902mm.  Next the image was rotated to ensure all the vertical lines were square making it easier to trace over.  Now I could start the lengthy task of drawing out the hull and frame sections.

With the hull lines completed I decided that I would start to copy the plan and profile views of the lifeboat.  The setting up procedure was repeated with the image of the deck and profile views, ensuring they were both correctly scaled and lined up before I started to draw them out.  All this may seem like a lengthy process but I find it a useful way of understanding how all the elements of a ship fit together and how I am going to construct the model.  The attached images show the drawing in production with the scanned image in the background and the blue lines are what I have drawn over the top.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on September 25, 2016, 07:02:26 pm
 With the basic hull lines and rib outlines complete I started to draw out each of the individual ribs.  First a centre line was drawn and the half rib shape copied to line up with the centre line.  The rib line was then mirrored to form the other side and to complete the shape an arc was drawn on top to give the profile of the deck.  To allow for the thickness of the outside planking and deck the lines were offset by 1mm.  To finish off the internal cut out was drawn.


After drawing all the ribs out the next step was to draw out the keel shape with the rib positions.  Now I was able to work out all the interlocking cut outs for the ribs to fit into the keel and the position of the motors.  I also determined the locations of the two prop shaft and drew the two holes they would pass through in rib No.6 and 7.


With the keel and ribs complete they were all laid out, including a keel building base at the correct angle to the ribs would be vertical during construction, a separate file was saved and sent to SLEC UK to get a quote for cutting out using a CNC router.  I emailed the file to them with a request for a quote and within a couple of days I received a quotation for the keel and ribs to be cut out of 3mm birch plywood.  After some discussions and corrections to the artwork so the router machine could understand the cutting patterns they were able to proceed with the job.
 
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on October 03, 2016, 05:39:58 pm
It was a couple of weeks after the order was placed that I received a large parcel containing three sheets of 3mm thick plywood, two of which contained the sections and keel cut to shape.  The first sheet has the keel and the bow and stern ribs. At the bottom is the building keel I will use to mount the keel on so the ribs will be vertical in relation to the building base.  The second sheet contains the midship ribs.  The last photo shows the lime sheet for skinning the hull and balsa wood block for the bow and stern sections. Also shown are the two RS385 motors that will be installed later.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on October 16, 2016, 04:42:06 pm
Time to start building the hull but first a base to build it on is required.  I had some 18mm thick plywood sheet leftover from a DIY project so measured out a piece 1000 x 300mm and cut it out with a hand saw.  Down the middle a pencil centreline was then made as a reference for mounting the building keel.  To ensure the building keel will be square to the base I cut four rectangular pieces of wood to support the ends of the building keel on the mini table top circular saw checking they were true with an engineering square.  Now I could glue the building keel in place along the centreline of the base board using some rapid drying wood glue, again checking everything was square.  With the two ends supported the next step was to cut more square rectangular pieces of ply and glue then at intervals to support the full length of the building keel.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: BFSMP on October 16, 2016, 06:18:48 pm

If you are keeping the building board cramped to the workmate would it be advisable to have the heavy overhang of 18mm ply equidistant  over the workmate so that all the weight and possible distortion is not just on one end of the boat's keel.


Just a thought.


Jim.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on October 23, 2016, 04:33:02 pm
The clamps are just to stop the base board slipping about on top of the workmate, Jim.

The building keel was now almost ready for the keel to be mounted, but first fourteen blocks had to be cut and glued either side ensuring they were positioned not to interfere with the installation of the ribs later.  The keel could now be slotted down onto the building keel and the installation of the ribs could be started.  Starting with ribs four and five each one were slotted in place both side of the motor mount and checked that they were perpendicular to the building base with the engineering square.  Once happy with the fitment they were removed, glued in place and checked again.  Moving out from the centre each of the remaining ribs were fitted, checked and then glued in position.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on October 31, 2016, 07:28:26 pm
The next stage of the build was to interlock the 3mm x 3mm wooden stringers between the ribs starting at the bow and running one down the centre to rib number three.  Then either side two more were fitted marking the edge of the main superstructure.  Around the outer edge of the ribs two stringers were glued in position forming the outside edge of the deck.  Now all the ribs were securely held in place.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on November 06, 2016, 05:38:25 pm
Continuing on with the hull I could now fit the rest of the stringers to the hull, a further three rows on each side, glued into the slots already cut out of the ribs.  The skeleton of the hull was now complete ready for skinning.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on November 16, 2016, 04:15:25 pm
To start skinning the hull first it had to be removed from the building frame and turned over.  The building frame was removed from the base board and two new building frames made and glued to the base board.  The skeleton could now be mounted ready for the work to start on the outside of the hull using 1mm thick limewood.  Initially I was going to cut the sheet limewood into 10mm wide strips and plank over the frames but thought I would cut panels to the shapes of the frames and stringers instead.  To obtain the shapes of the panels I used thin paper held in place over the hull and the natural daylight from behind shining through drew out the required shape on to the paper.  This was then cut out and offered up to the hull to check it fit.  Any trimming was done and the paper shape was placed on to limewood sheet and traced around.  Using a sharp knife the panel was cut out, checked against the hull frames, trimmed before I was ready to start gluing them in place.  Working from the bow to the stern, along the keel and on each side the individual panels were glued and clamped in place.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Canterbury Coxswain on November 16, 2016, 05:16:30 pm
Tiny,
A nice neat build of a really great looking class of lifeboat. This build will help anyone wishing to build a hull in this manner - well defined stages that help understand the whole process.
Keep up the good work, I am enjoying watching the progress.
Kim
Canterbury Coxswain
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: spongie on November 16, 2016, 06:30:19 pm
I've often thought it'd be interesting to replicate the hull welding on a model of a steel Lifeboat like the Tyne, Thames, Waveney or Clyde...


Heightened realism
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: IainC on February 20, 2017, 08:58:55 am
From the way the bow section is scalloped inwards I'd say you are building 70-002, which had that unique design feature.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on March 17, 2017, 06:32:54 pm
It has been some time since I have posted on this build but here is an update.  I have been continuing on with the skinning of the hull with the limewood panels and have now completed them all. Looks like a patchwork quilt at the moment but it is something to work with.  I have also cut the slots in the hull for the prop tubes to pass through which are quite long due to the angle of the tubes.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Canterbury Coxswain on March 18, 2017, 10:36:53 am
Tiny,
Still really enjoying watching this superb build of such a wonderfully shaped lifeboat. I hope you are enjoying it as much as we are!
Kim
Canterbury Coxswain
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on March 18, 2017, 06:44:41 pm
I enjoy building all of my models, they just take me a long time to complete as I sometime have break away from them to think things through and plan ahead.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on March 25, 2017, 08:35:28 am
With the outer skin complete the next stage of the build is to line the inside of the hull with glass fibre matt and resin.  I do this to strengthen the limewood skin to stop it flexing before I start to sand the hull to its final shape.  I bought a resin kit from Halfords which contained 0.5sq metres of glass matt, 500ml of resin, hardener, mixing sticks, measuring cup and some disposable gloves.  I cut the glass matt into strips and laid them between each of the ribs.  I then poured out some resin into the measuring cup and added the hardener and mixed then thoroughly together.  Working from the stern the mixed resin was then applied to the glass matt starting at the keel and work up the side of the hull.  Using the mixing stick the resin was worked into the matt to ensure it was in contact with the outer skin of the hull and any air bubbles removed.  The resin takes about ten minutes to start to go like jelly when it becomes unworkable, which was plenty of time to work it into the matt. Once happy with the density of the applied resin I moved onto the next compartment repeating the whole process until all the compartments were completed. 
 
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on April 02, 2017, 06:43:43 pm
With all the internal compartments filled with resin I could now start to sand down the outside of the hull to the required shape.  I like to us a 120 grit wet and dry paper to take off the majority of the rough grain in the wood.  Whilst sanding I could feel the peaks and hollows that would require removing and filling.  To fill any hollow areas I use a quick sand resin filler paste that is applied and once set sanded back to shape.  The process of sanding and filling is repeated until I am happy with the final finish and shape of the hull.  Then I sand with a 220 grit paper to give a smoother finish.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on April 05, 2017, 04:06:49 pm
I have a question, does anyone out there know what size props this vessel had?
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: BFSMP on April 05, 2017, 06:33:04 pm


I have a question, does anyone out there know what size props this vessel had?


Just spoke to my friend who built one of the 3 Loch ness  boats and, he was in contact with the then owner of the boat he built, RNLB Grace Paterson Ritchie.
Iain Crosbie, whom he had known for some time, about this matter. gave him the reply as the build went on.


Iain got back to him with the size which he even didn't realise although had had her out of the water at Fairlie numerous times, and the size was 3' 6" diameter,which equated to 90mm at 1;12 scale, and Neil had two cast for him at Prop Shop. So yours would be 45mm at 1;24 scale.


Just got the following pictures off the internet.


Jim.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on April 05, 2017, 07:10:12 pm
Thanks for the prompt reply BFSMP.  From the information and pictures I have obtained I guessed at about 40mm - 45mm at 1:24, so you have confimred that 45mm is the correct size.

3ft 6ins = 42 ins x 25.4 = 1066.8mm

1066.8 / 24 = 44.45

Therefore 45mm Diameter
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: BFSMP on April 05, 2017, 07:37:04 pm

Thanks for the prompt reply BFSMP.  From the information and pictures I have obtained I guessed at about 40mm - 45mm at 1:24, so you have confimred that 45mm is the correct size.

3ft 6ins = 42 ins x 25.4 = 1066.8mm

1066.8 / 24 = 44.45

Therefore 45mm Diameter


 :-))
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on April 10, 2017, 08:30:40 pm
To finish the bow and stern sections I roughly cut to shape a number of 10mm thick balsa blocks and glued them in place either side of the keel. Then using a detail sander the rough shaped balsa was sanded back to flow into the lines of the rest of the hull.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on April 15, 2017, 07:24:23 am
I decided to have a break from all the filling and sanding on the hull and to start making the prop shafts and tubes. Firstly I bought two 400mm long M4 thread prop shafts to use the stainless steel shafts.  I also purchased two 300mm long 6mm OD brass tubes and a length of 6mm OD brass bar to make my own tubes to the correct length.  The first stage was to make the four bearings for either end of the two tubes using the 6mm OD brass bar and turning it down 5mm in length to 5mm OD so each one would slot in to the end of the 6mm OD tube.  Then I centre drilled the end and drilled a 3.8mm OD hole down the centre.  The 3.8mm OD hole was then reamed with a 4mm OD reamer to ensure the hole was perfectly round and a good fit for the 4mm OD shaft.

With the bearings made I then made the oil tube mount using some hexagonal brass I had in my scrap box.  I used this because it would be easier to drill the hole for the vertical oil tube on a flat face.  The hexagonal brass was placed in the lathe and the end faced off, centre drilled and a 6mm OD hole drilled down the centre.  I cut a piece just over 10mm long off the end of the brass and placed that in the lathe to face off the rough cut end.  I repeated everything to make a second.  I now had what looked like two brass nuts with no threads.  I placed each one in turn in to a drill vice and vertically drilled a 6mm OD hole in to one of the flat faces.  Now I cut two lengths of 6mm OD brass tube and pushed each one in to the hole in the hexagonal brass section.

This assembly was then slipped over the 6mm OD brass tube and positioned 10mm from the end and one of the brass bearing slotted in the end of the tube.  The whole assembly was then soldered together with the help of a gas torch to provide enough heat.  The two tubes where placed in the hull in the position where they would are located and the length of each marked so they could be cut to the right length at the point where they exit the hull.  Each tube was cut and the other bearing was soldered in place ensuring it was square so the shaft would turn smoothly. 

With the tubes complete I turned my attention to the two A Frame shaft support bosses. Using a piece of 9mm OD brass bar I turned down a length of 50mm to a diameter of 8mm to give me enough to make two.  The end was faced off, centre drilled and a 3.8mm hole drilled down the centre approximately 25mm into the bar.  Next I calculated the angle needed to cut the chamfer and set the head sock to an angle of 14 degrees.  Once the chamfer was turned I cut off the boss at a length of 22mm and put that into the chuck to ream it out to 4mm and face off the other end to a length of 20mm.  I repeated the whole process to make the second boss.

I purchased two 45mm diameter brass props to fit the M4 threaded shafts.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Canterbury Coxswain on April 16, 2017, 11:36:47 am
Tiny,
The progress is inspirational to all of us 'scratch' and 'semi-scratch' builders, giving food for thought along the way to both new marine modellers and experienced alike. I know the feeling of why you want to 'go off piste' occasionally and do something else - my excuse for having so many lifeboats on the go at the same time! Might be joining you on this approach of my Shannon this week.
I look forward to your next episode.
Kim [C.C.]
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on April 17, 2017, 09:00:20 am
C.C. I am glad that you think my work is inspirational to fellow modellers.

I need some information to complete the A Frames and was hping someone out there has a drawing showing a stern view with the two A Frames supporting the Prop shafts so I can work out the angles of the support legs in relation to the shaft boss.  Attached is a simple sketch of what I am looking for.

Tiny
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on April 24, 2017, 08:54:45 pm
The rudder tube was the next item I decided to make in a similar manner to the prop tubes.  I turned two bearings from a section of 6mm OD brass bar but with a 3.2mm OD hole down the centre.  With those complete I cut a length of 6mm OD tube to 66mm in length and soldered the bearings into either end.  Any excess solder was removed and the tube was slotted into the hole I had already prepared in the keel.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on May 01, 2017, 07:35:21 am
To set the exact position of the two prop shafts I needed to make a simple plywood jib.  I cut a piece of plywood to 100mm long x 70mm high and marked the centre line of the keel down the middle and drilled two 4mm diameter holes 35mm either side.  Then using the table saw I cut a slot down the centre line so that the jig could be slotted in place on frame 9 at the correct height.  Now I could position the tubes in the hull and slot the shafts in place and test fit the two props to check the clearances around the keel and hull.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: T33cno on May 01, 2017, 08:34:30 am
Just found this thread  :-)  Fantastic  8)
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tug-Kenny RIP on May 01, 2017, 10:20:14 am

A nice way to lay the props Sir.   Well done.    :-))

ken
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on May 06, 2017, 09:34:38 am
To make the rudder I first printed out a drawing of the main blade, cut it out and placed it on to a 1.5mm thick sheet of brass.  I scribed around the paper cut out and then drilled holes with a 2mm drill around the outline to make it easier to cut out.  The rough shape was then filed to shape with a rough file and the edges finished with a fine file.  To mount the main 3.2mm OD shaft a slot was milled from the bottom edge 25mm long.  This was repeated on the top edge.  To solder the top and bottom shafts in place I made a simple jig from a piece of plywood with a 0.85mm slot milled into it to hold the shafts at the correct height for the rudder blade to sit at the centreline of the shafts.  The bottom shaft was soldered into place.

At this point I realised that I had made an error with the top shaft by soldering the boss on the top to mount the servo horn on.  I would not be able to slide the rudder shaft into the rubber tube as the diameter of the boss is 5mm and the rudder tube is only 3.2mm OD.  After a bit of head scratching I figured if I removed the boss from the end of the shaft I could at least solder the rudder blade to the shaft.  The top shaft was soldered in place and all the excess solder filed away.  On top of the rudder blade is a square box which I made from two pieces of 1.5mm brass sheet soldered together.  To solve the problem with the servo horn boss I cut a slot down the length of it.  This would allow the boss to clamp onto the shaft when the servo horn screw was tightened up.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Canterbury Coxswain on May 06, 2017, 10:49:09 am
Nice one Tiny!
Some good explanations, photos and captions. This should be of help to many - whatever they are building or hoping to. What I always say is 'there's more than one way to skin a cat'. What I also like is that fact that you 'confess' your mistakes. I try to do the same on my Shannon 'thread'. I hope it gives heart to others to have a go and learn by our 'deviations' and solutions.
I've had a very busy last four weeks, so hope to get back into the workshop myself this afternoon.
Keep the build  posts coming. Are you a member of the LBES? It would be good to have your 'in build' Clyde on the stand at Warwick in November. I can send you a membership form if required.
Kim
[Canterbury Coxswain]
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on May 14, 2017, 06:58:53 am
Kim,

I am not a member of the LBES and at the moment am unable to commit to any future events until next seasons footie fixtures are announced and I know which weekends I will be attending Everton's home games.

So on with the build and at this point I was ready to permanently install the two prop shafts and tubes.  To support the ends of the tubes inside the hull I made two brackets from some plywood and using two part epoxy glued them in placed.  The two shafts were now locked in place with the help of the plywood jig holding the shafts in place on the outside of the hull.  I next applied some car body filler to fill the two slots were the shafts pass through the hull.  On the outside of the hull I also applied a small amount of filler paste were the shafts exit the hull and sanded it to shape.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on May 18, 2017, 06:54:50 am
With both prop shafts permanently in place I could now make the two A Frames that support the ends of the shafts. I only had some photos of the boat out of the water to work from. Using the CAD software I drew up the two frames to work out the angles of the support legs and then printed the drawing. This drawing was then transferred on to a piece of scrap plywood which was to be the base of the jig. I had already made the two centre bosses so only needed to make two support legs for each of the frames. I drilled two 8mm OD holes into the plywood and inserted the two bosses to the right height. The legs are made from 6mm x 1mm brass strip cut to about 40mm in length. With the bosses set at the desired angle in the jig using accurately cut pieces of plywood and the ends of the support legs were filed to the matching angle to neatly fit. The brass strips were secured in place against the bosses using some more off cut of plywood ready to solder the joints. All the parts were disassembled, cleaned, reassembled in the jig and then soldered together.
 
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on May 28, 2017, 07:06:36 am
The next stage was to work out the exact positions of the two A Frames and drill holes in the hull for the legs to pass through.  I eventually drilled two over size slots on each side of the keel and used the prop shaft jig to hold the shafts in place so the frames were held in position whilst the two part epoxy glue set.  Once secure I was able to fill the holes with filler paste and sand smooth.  On the inside of the hull I also applied some filler paste around the tops of the protruding legs.

To support the bottom of the rudder the skeg was made from 6 x 3mm square brass tubing with a 2mm diameter brass pin soldered in place to slide into the bottom tube of the rudder.  The skeg has two more brass pins that are slotted into two holes drilled into the plywood keel.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on June 04, 2017, 07:51:40 am
Along the length of the hull I decided to fit a 6mm deep brass keel to match up with the rudder skeg.  From the skeg working forward two strips of 3mm square section were glued on top of each other and pinned into the plywood keel.  To make the section around the curved bow a simple jig was made and slots cut into the brass at 5mm intervals.  This made it easier to bend the strip to shape in the jig and then solder between each of the slots to hold its shape.  This was then fitted to the keel and filler paste applied and sanded to shape it into the rest of the hull.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on June 17, 2017, 04:59:28 pm
Continuing on with the hull the next step was to clearly define the edge of the top plate which had become somewhat lost with all the sanding. To achieve this lengths of 1mm OD brass rod were glued in place to define the edges.  Then a thin skim of filler paste was applied up to the brass rod on both sides and allowed to set.  The filler was then sanded back to a smooth finish using the brass rod has a guide to produce the edge.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: T33cno on June 17, 2017, 05:23:06 pm
Ingenious  :-))
I'll bet your looking forwards a coat of primer  :-)
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on June 17, 2017, 05:26:56 pm
Not far off now.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on June 23, 2017, 06:54:21 pm
The hull is now at the stage were a coat of under coat was required to show up any imperfections still to remove.  A couple of coats Halfords build up paint were sprayed on and left to reveal lots of minor scratches that would need working on.  To remedy this the hull was sanded with fine grain wet and dry paper soaked in water to form a paste that fills in the scratches to leave a smooth finish.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on July 01, 2017, 09:29:21 am
 The next step was to fit the two MFA950D motors with 6:1 reduction gearboxes into the hull.   Both were mounted on plywood bases using servo mounting screws and then the bases were glued to a piece of 6mm thick balsa that had been shaped to fit the profile of the inside of the hull.  Each motor is fitted with an inline fuse and an RFI kit soldered across the terminals and to the motor casing to reduce any interference created.  The motors shafts are connected to the prop shafts using double universal joints.
Now the deck could be fitted which was cut from a sheet of 1mm thick plywood allowing about 5mm all round to sand it back to the edge of the hull.  The plywood was glued down and clamped, taped around the edges and heavy batteries placed on top to hold it in place whilst the glue wood set.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on July 09, 2017, 09:03:07 am
Firstly the paint was removed along the hull chine and using some 3.2mm half round plastic strip the rubbing strake was glued in place along the full length of the hull except for a small section near the bow. Around the top edge of the hull the paint was also removed so the top rubbing strake channel could be added.  This was made using 6.3mm x 2mm C-section plastic strip which easily bent around the bow of the hull in one piece.  Further pieces were added down each side.  The hardest section was to get the neat angle were the two meet at the stern.  One side was fitted first with a slight overlap and then trimmed back to the centre line of the hull.  Then I carefully measured the other side and cut it slightly longer, cut the mating angle to fit, then cut off the excess at the other end before gluing in place.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on July 17, 2017, 11:20:39 am
With the top rubbing strake fitted I decided to fit a plastic deck on top of the plywood deck already installed.  By placing sheets on top of the hull and using a soft pencil the outline was marked onto the 0.8mm thick plastic sheets.  Leaving about 3mm excess all around the deck shape was cut out and the back roughed with some sand paper to ensure a good adhesion.  With the plastic deck glued in place the excess around the edge was sanded back in line with the rubbing strake.

To make the bilge keels two strips of 6.3mm x 1mm plastic strip were cut to length and on the back five slots cut 0.5mm deep at 80mm centres to insert stainless steel pins into.  Then ten 15mm long pin were cut from a length of stainless steel rod and one glued into each slot.  The hull was marked with the locations of the bilge keels, holes were drilled for the pins to slot into after a bit of fiddling about and adjustment the keels were glued in place.  To ensure a neat finish some filler paste was applied along the edge were they meet the hull and sanded back.
 
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on July 23, 2017, 07:23:29 am
 The next challenge on the hull was to drill the hole for the anchor hawse pipe at the front of the bow.  The position of the hole was marked on the deck and were it exits on the bow and using a 6mm drill a pilot hole was carefully drilled first through the deck at an approximate angle towards the bow.  Then a second pilot hole from the bow towards the deck was drilled in the same manner.  With the two holes meeting up in the middle the hole was then opened out with an 8mm drill followed by a 9mm drill to create a tunnel from the deck to the bow through the solid balsa sections of the bow.  After bit of filing with a large round file to ensure the tunnel was on the centre line of the hull it was big enough to slide a 9mm OD brass tube down.  The tube was cut slightly oversize and glued in place.  Some filler was applied and sanded back on both the deck and bow to finish off the edges of the pipe.
 
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Canterbury Coxswain on July 23, 2017, 11:54:37 am
Tiny,
It's looking good and you seem to be proceeding well. The 'step by step' should be a help to quite a few folk, it's surprising how often we see what someone else is using as a 'process' and then think 'I'll use that!'.
I think your Clyde could be on the water before my Shannon, but this week want to get a few more bits done ready for my LBES static display at the Alfold Charity Model [with boats] Show next weekend.
Keep it coming.
C.C.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on July 23, 2017, 01:31:32 pm
CC,

I estimate about another two to two and a half years to complete this model based on how long it has taken to build the hull up to now.  What's your estimate to finish you project?

Tiny
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Canterbury Coxswain on July 23, 2017, 03:15:11 pm
Tiny,
I can hear the rybauld laughter from here from all my 'friends' -" finish his Project? He's not got one finished, on the water or in blue and orange yet and there are seven under construction!". Seriously, I'm not sure that 'Big G' will give me enough time, but I'm having fun and enjoying myself. The straight answer to your question though is September for 'on the water' and running in a forward direction. Maybe a year to get the external detail finished and painted. Doing this 'thread' helps to keep it on the move, but look how much has been 'achieved' in the past few weeks - a very slow move forward, but it needs to be accurate and in proportion [if not].
Cheers,
Kim

PS - I can still hear the laughter echoing around the UK, across Europe and even 'down under'.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on July 30, 2017, 08:09:32 am
To form the bulwarks around the bow at the inclined angle required a template was made from cereal box cardboard.  A strip was cut and taped in place round the edge of the deck at the required angle and marked with a soft pencil.  This gave the bottom cutting line of the bulwark.  The cardboard was cut out and placed on the deck to check it fitted correctly.  A small amount of trimming here and there and the template was then placed onto a sheet of 0.8mm thick plastic sheet and drawn around to give the required shape.  The plastic was cut and shaped to the lines drawn and test fitted on the bow.  Along the bottom edge a slight angle was sanded to give a better joint with the deck.  Once happy with the fit the section was glued in place using Tamiya Extra Thin Liquid Cement as it easily runs along the joint.  This was left to set overnight.

With the bow section set the anchor recesses could be made.  First a cardboard template was made to get the angles correct and then transferred to a sheet of plastic and cut out.  The end of the bow bulwark was trimmed to the correct angle and the first section of the recess glued in place.  Then the first section on the other side was worked on and glued in place to allow the other side to set before adding anymore sections.  This process was repeated for the second and third sections to complete the anchor recesses.


Down each side of the bulwarks are nine wash ports so the positions of these were marked onto the deck as taken from the plan.  To make it easier to construct the side bulwarks I decided to divide them into three sections each containing three wash ports.  More cardboard was used to get the correct curve of the deck and transferred on to the plastic sheet.  This was then cut out and shaped to fit on to the deck at the correct angle.  Once happy with the fit the wash port locations were marked out on the plastic and then filed to shape with a round file for the corners and finished with a flat file along the top edge.  The bulwark section was then glued in place and left to set whilst working on the other side of the hull.  At this moment the bulwarks are not cut to the correct height but have been marked and the excess will be removed later.
 
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on August 05, 2017, 08:40:08 am
Using the same techniques as described using card templates to get the correct curve of the deck and incline of the bulwark the last section around the stern were made and fitted to the hull.  These sections were then marked with the height of the bulwark to match the rest.  Using a shape knife the excess plastic and scoring the plastic above the mark line the excess plastic was easily removed and then with a small sanding block the remaining was removed down to the line.  To check the height all round a simple gauge was made from plastic sheet that could be run around the edge of the deck to indicate where there were any high points. A little sanding in a few places was needed to ensure the top of the bulwarks were parallel with the deck.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on August 13, 2017, 12:09:54 pm
With the bulwarks now fitted the next stage was to fit the numerous stanchions on the inside.  Using various reference photos the position of each was marked out on the deck.  To obtain the angle of each stanchion relative to the deck a simple adjustable tool was made from plastic sheet which was placed against the upright bulwark.  The tool was then transferred to a jig, also made from plastic sheet and the angle marked onto a strip of plastic.  The angle was then cut and the back edge marked with a set square and also cut.  The stanchion was then glued in place with liquid cement.  The whole procedure was then repeated for the next one and so on.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Charlie on August 13, 2017, 04:21:25 pm

Very neat work there Tiny, I like it. Like the Jig as well, good idea. By the way, what adhesive did you use to attach the Styrene deck to the Plywood?


Charlie
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on August 14, 2017, 07:28:04 pm
Charlie,

I used a medium viscosity cyano glue.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on December 30, 2017, 10:45:13 am
 With all the bulwark stanchions in place on both sides the top rail was added using strips of 3.2mm wide x 1mm thick plastic starting with the two anchor wells and working towards the rear. Around the bow the strip wouldn't bend to such an acute curve so this section was cut from 1mm thick sheet to the required shape.
 
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Canterbury Coxswain on December 30, 2017, 11:59:37 am
Tiny,
This is a wonderful build and a joy to watch. Your jig at #60 is very helpful to show how to attain a neat and accurate finish. I [and many others] will enjoy the ongoing build throughout 2018.
Have a fulfilling and enjoyable New Year.
Kim [C.C.]
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on January 07, 2018, 05:11:19 pm
With the bulwark top rail glued in place it was initially sanded back with some medium grit wet and dry paper.  Next two equal parts of milliput epoxy resin putty were mixed together and applied along the joint and smoothed out using some water to form a thick paste and allowed to set overnight.  Using three grades of wet and dry paper from rough through to fine, the hardened milliput was sanded to form a smooth joint along the top rail.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on January 15, 2018, 07:23:34 pm
Just a bit of an update showing the installation of one of the bulwark hawser that I desgined, modelled and had 3D printed from Shapeways.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on January 21, 2018, 05:23:08 pm
The next step in the construction of the model was to fit the deck coaming around the opening.  Using 6.4mm x 6.4mm, that’s ¼ inch in old money, Evergreen plastic angle which I glued with cyano to the underside of the plywood deck giving a 4mm lip all round.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: spongie on January 22, 2018, 12:11:44 pm
I don't want to rush you but this is going to be a fantastic model when it's finished and I can't wait to see it.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on January 22, 2018, 02:00:15 pm
I won't rush it, perhaps another two to three years to complete.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on January 31, 2018, 04:16:43 pm
It is now time to start work on the main superstructure so it was back to the PC to setup and print out the basic shapes of the two sides and rear.  The print out were then roughly cut out and glued to some cereal box cardboard using some Evostick contact adhesive to ensure the paper did not expand or shrink.  Once applied to the cardboard the side pieces and front deck were cut out and using 3M tape stuck together to check the line along the deck and coaming.  These cardboard shapes are to be the templates I will use to make the actual sides using plasticard.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on February 11, 2018, 06:04:59 pm
With the basic card templates complete the next stage was to start using them to mark out on to 1mm thick plastic sheet and cut them out.  The rear sides were cut first and then the windows were cut out, three on each side, only to check the drawings and find the port side had only two.  The mistaken third window was filled using some plasticard and the gaps filled with some car body filler and once set sanded back.  The rear panel was cut out and then the two windows cut out also.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on March 03, 2018, 10:01:16 am
With the two sides and rear cut out the next step was to cut out the roof section from the plan.  Now the pieces could be glued together with poly cement and strips of plastic positioned at the joints to strengthen them.  With the rear of the superstructure complete the front section could be started using the card templates previously made.  These were placed on the plastic sheet and taped in position and cut out. Then the windows and door openings were roughly cut out and filed to shape.  The front top deck and front bulkhead were made from the card templates and then cemented together with 4mm square plastic sections in the corners to support the joints.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: RST on March 03, 2018, 10:21:58 am
Quote
Now the pieces could be glued together with poly cement and strips of plastic positioned at the joints to strengthen them.

You sure you're using poly cement?  It goes pretty brittle with age over the years -old skool airfix kit stuff.  Much better to use MEK or Butanone etc. especially with all that very neat effort so far.  I still use the likes of Revell Contacta for small parts or filling gaps but I learned poly cement tubes are just a no-no these days.

Looks fantastic though.  An inspiration so far!

Rich
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on March 03, 2018, 01:06:18 pm
I use Tamiya liquid cement.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on April 02, 2018, 06:49:41 pm
Cut out from 1mm styrene sheet and fitted the rear window panel of the wheelhouse.  Then started to work on the lower half of the front of the wheelhouse using more styrene sheet.  Used car body filler paste to fill in the rounded corners.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on April 17, 2018, 06:39:14 pm
Some more work done of the superstructure with lots of sanding and filling and yet more sanding to form the rounded corners.  Also started sanding round the edges of the forward deck area.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Neil on April 17, 2018, 11:28:46 pm
its looking beautiful, tiny............a really superb build indeed.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on May 01, 2018, 06:41:35 pm
The front section of the wheelhouse was cut out and the three windows marked out and cut out.  Then two lengths of angled aluminium were placed upright on the front and held in place with 3M clear tape.  This was to give the correct angle for the front window section.  The section was taped in place and then liquid plastic glue applied along the joint.  Aftfer the glue had set the side windows sections were measured top and bottom to get the correct angles.  Once cut out a little filing was needed to ensure a good fit.  Then the windows were cut out and the side sections glued in place.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Tiny69 on June 02, 2018, 07:26:50 am
I've made the engine room vent using styrene sheet with car body filler used to form the chamfered edges.
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Neil on June 02, 2018, 09:10:00 am
beautiful work, Tiny...……..I can now see  as this build progresses just how much more versatile this model at 1;24th is over the big lump that I made the moulds for...…...she was unhandleable to anyone but a body builder or sumo wrestler, {-) {-)
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Dave Cook on October 28, 2018, 02:18:06 pm
Hi Tiny, PM sent.
Regards Dave  :-))
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: justboatonic on October 28, 2018, 02:45:50 pm
Nice work. What do you use to remove the pencil lines before painting?
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: Charlie on March 26, 2020, 07:08:29 pm
I wonder what happened to Tiny’s build? It was going well. Hope he’s ok🤔
Title: Re: 1/24 Scale Clyde Class Lifeboat
Post by: coch y bonddu on March 26, 2020, 08:49:03 pm
Nice work. What do you use to remove the pencil lines before painting?




Use an eraiser works for me then i use panel wipe to get rid of the residue then rub it down


Dave