Model Boat Mayhem - Forum

Dry Dock / Shipyard: Builds & Questions => Pleasure boats, Sports, Race, Power and Leisure Boats: => Topic started by: ukmike on June 20, 2017, 06:40:41 PM

Title: Bigish Aquarama Special Build
Post by: ukmike on June 20, 2017, 06:40:41 PM
Hi.

LOA 1.3 mtrs. x 380mm Beam.
Powered by 2 x 1KW. brushless motors.
Some photos of the work so far.
Mike.
Title: Re: Bigish Aquarama Special Build
Post by: TomHugill on June 20, 2017, 11:05:12 PM
Been looking forward to this mike, following on!
Title: Re: Bigish Aquarama Special Build
Post by: Martin [Admin] on June 21, 2017, 11:59:50 AM
 
Yeah, I say Bigish too!
Title: Re: Bigish Aquarama Special Build
Post by: DaveRuss on June 21, 2017, 12:42:58 PM
I take it that this is a scratch build.If so,do you cut the parts yourself or is there somewhere you send the plans.Thanks
Also can you tell us what wood you are using etc.

Will be following closely.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on June 21, 2017, 01:48:17 PM
Building from plans and cutting the wood myself.
The frames should have been 5mm birch ply but when it arrived it was the Imperial equivalent which is a tad thicker, as is all of  the wood that I ordered.
The keel is 2 X 5mm laminated together from frames 7 to 13 and 4 laminations from 6 onward. Again all oversize due to the wood being Imperial.
Other woods include Mahogany, Lime and a little 4mm ( ish ) birch ply.
Glue will be mostly yellow aliphatic, maybe a little epoxy here and there.
The Mahogany planks for the hull sides and some of the decking will be 9mm X 3mm which I will cut myself, the hull bottom is 3 mm ply due to the full size having a white bottom.
As for varnish, ( eventually ), it will be LeTonkinois.
Mike.
Title: Re: Bigish Aquarama Special Build
Post by: DaveRuss on June 21, 2017, 09:26:37 PM
Thanks Mike she sure is going to be a big one.I bet she will be quite heavy too.
Title: Re: Bigish Aquarama Special Build
Post by: TomHugill on June 21, 2017, 10:06:51 PM
Mines a similar size and isn't too heavy
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on June 22, 2017, 01:19:24 PM
Her are a couple of photos of my exposed shafts setuup.

The 2 miniature pillar blocks will take the prop thrust and the 2 alloy things are the flexi motor couplings.
Didn'y fancy the idea of using brass wheel collets on the outside of the hull as I want the shaft tubes to protrude as little as possible thu' the hull bottom.

Mike.
Title: Re: Bigish Aquarama Special Build
Post by: me3 on June 22, 2017, 05:33:40 PM
Looking good! Where did you get the plans from?
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on June 22, 2017, 06:05:56 PM
From Marc Spitàls in France.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on June 29, 2017, 03:14:36 PM
Finaly managed to straighten the keel by wetting with very hot water and W/Up liquid, clamped into aluminium angle with a small packing piece in the centre then drying with heat gun made for paint stripping. It has kept in shape for 3 days now and shows no sighns of bowing.
Have started to fit the frames now then I can turn upside down and fit the chine stringers which are 3 laminations of 3mm Lime.
Mike.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on July 14, 2017, 05:55:16 PM
Progress so far, very slow going.

Here are some photos of my exposed propshafts set up. Nothing glued in yet, just setting the alignments.

Mike.

Title: Re: Bigish Aquarama Special Build
Post by: Martin [Admin] on July 14, 2017, 08:30:55 PM
Images are very small, try resizing to 800 x 600   :-))
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on July 31, 2017, 09:29:03 AM
Progress so far.
Title: Re: Bigish Aquarama Special Build
Post by: martno1fan on August 01, 2017, 06:50:14 AM
Great work mate,what motors are those they look a bit small.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on August 01, 2017, 10:25:35 PM
It's not the motors are small but the couplings that are quite large.
They are not Modelling types.
Mike.
Title: Re: Bigish Aquarama Special Build
Post by: martno1fan on August 02, 2017, 06:01:47 AM
What size are they and whats the shaft diam .
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on August 02, 2017, 07:58:21 AM

Here you go Mart.

3642 / 5mm shaft / 1100kv / 950 watts on 4 cells.
What do you reckon ? Am looking for about 7 kilos finished weight.


Mike.
Title: Re: Bigish Aquarama Special Build
Post by: martno1fan on August 02, 2017, 08:38:46 AM
My worry is wether they will have the torque needed to last over a period of time in such a big heavy boat . I can only judge it on the type of hulls i use such as my large Apache.I know mine are faster and a faster design etc but size x weight ratio wise theyre similar. You might be fine and you can but try it i guess mate .Im one of these guys who thinks the more power the better lol.
Title: Re: Bigish Aquarama Special Build
Post by: martno1fan on August 02, 2017, 08:47:17 AM
This one is on sale at the moment seems a good motor even on 3 s .This motor has lots of torque as its designed for fast boats,over kill ? . Might pick two up for myself at this price .
https://hobbyking.com/en_us/4362-1300kv-1994w-brushless-motor-suitable-for-hydropro-inception.html
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on August 02, 2017, 02:08:58 PM

Thanks for the info and advice Mart.

Seen those motors and a very good price at the moment.
I want to use only 4 cells and am not particularly concerned about long running times, my main interest is the building and finishing, not the sailing.
I take your point about the weight and have decided to build another hull with extra lightening. Birch plywood is very heavy so my aim is to remove as much of it as possible with sacrificing structural strength.
Will see how it goes !!


Mike.

Title: Re: Bigish Aquarama Special Build
Post by: martno1fan on August 02, 2017, 03:43:51 PM
Thanks for the info and advice Mart.

Seen those motors and a very good price at the moment.
I want to use only 4 cells and am not particularly concerned about long running times, my main interest is the building and finishing, not the sailing.
I take your point about the weight and have decided to build another hull with extra lightening. Birch plywood is very heavy so my aim is to remove as much of it as possible with sacrificing structural strength.
Will see how it goes !!


Mike.

Ive been meaning to make a mould of one of these for years that would consist of main hull and a top structure that would allow people to glue on wood veneer if they wish , i just never seem to get the time to make the model to use as a plug  %) .Would certainly be lighter and more user friendly for rc use i think .
Title: Re: Bigish Aquarama Special Build
Post by: chris1 on August 05, 2017, 06:34:01 AM
Nice build and from what i see, very neat workmanship.  Is there a website with Marc Spitals plans? Thank you
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on August 05, 2017, 06:53:35 AM
Unfortunately no website for Marc.
The plans are from 1996 and I don't even know if he is still alive !!

Have abandoned the first build,( the one you see on here, ) and started a second one which will be much lighter and modified to accept brushless motors and exposed prop shafts.
Hope to drop about 2 kg. from the finished weight
Will post photos showing the differences as I go along, if that is of any interst.

Mike.
Title: Re: Bigish Aquarama Special Build
Post by: SailorGreg on August 05, 2017, 08:16:10 AM
Will post photos showing the differences as I go along, if that is of any interst.

Mike.


Oh yes please. Most definitely of interest!  :-))


Greg
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on August 14, 2017, 10:27:15 PM
Here are some pictures of the lightened and more accurate version of the boat.
Much of the birch ply has been replaced by using a lightweight type ply, not Lite Ply, also much cheaper.
The keel has been perforated with lightening holes and the frames have had as much wood removed as possible.
The 2 deck thingys, don't know what they are called, have been changed to approx 2/3rds light weight ply and 1/3rd birch which will be similarly lightened after fitting.
So far the new parts as pictured are 350 grams lighter than the same original parts so I am on course to acheive my final finished weight.
It is very difficult to fathom the plans as the construction is unusual and the notes in French are baffling, even Google translate is struggling.
Anyway here are the pictures, see what you think.


Title: Re: Bigish Aquarama Special Build
Post by: ukmike on September 19, 2017, 04:43:19 PM
Hi.
Progress on the second hull is proceeding, all be it at a snails pace.
Here are some photos of the work so far, the spray rails are built into the hull as per full size, they are formed as an integral part of the double planking and be about 8mm high at the stern tapering to nothing at the bow.
The stern platform or "Ailerons" as the French designer calls it are removable to allow sanding of the hull and then fitted later.
I am having to resort to some filler here and there to get the first layer of Lime planking as near to perfect as I can which should help the Mahogany final layer a little easier to apply.
The bottom is glassed already as it only has a single layer of 3mm Lime.

Mike.
Title: Re: Bigish Aquarama Special Build
Post by: martno1fan on September 19, 2017, 10:43:10 PM
Nice work Mike  :-)) .
Title: Re: Bigish Aquarama Special Build
Post by: derekwarner on September 19, 2017, 11:24:59 PM
Morning Mike......that double diagonal planking is progressing very well.....it's always a pity to paint it  <:(....

Getting back, the motors appear to be 4 bolted out-runners and the 2 bolt bearing assemblies also appear to be outer spherical and so self aligning

Are the bearing housing outers plastic?.....is the part at the red arrow an inner shaft as a part of the bearing assembly as it appears to be steel and your shafts appears to be brass..........is there a specification sheet available?...

Just going forward a few pages <*<....critical resonance/speed or vibration issue [at a high speed]?

Derek
Title: Re: Bigish Aquarama Special Build
Post by: Davo on September 20, 2017, 12:57:17 AM
Definitely a labour of love. You must have some excellent woodworking machinery for producing such precision parts (plus your skill to use them!). I have achieved chine spray rails on standard ply constructed hulls by oversailing the ply at the chine rail, profiling as per your pictures then finishing with a little body filler. It certainly keeps the spray down.
Looking forward to he next instalment....
David
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on September 20, 2017, 08:28:54 AM
Hi Derek.
The bearings are FL8 floating bearings with alloy housings, the reducing sleeves,( 8mm to 4mm ), are steel.
The 4mm shafts are 316 stainless steel.
The spiral cut couplings will absorb any and all movement in any direction although the alignment of the whole drive train is a accurate as I can possibly make it.
Have fitted whole assembly in situ and run it up to maximum speed with both motors and there doesn't seem to be any problems, in fact, the whole system was amazingly quiet.
I did fear that the the empty wooden hull would act as a loudspeaker, but was amazed by how quiet it was.


The main reason for using 2 floating bearings was to carry the thrust of the props, I didn't like the idea of an ugly wheel collet on the exposed shafts.
The whole setup was very inexpensive and very effective.


Mike.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on September 20, 2017, 08:54:26 AM
Morning Davo.
Thanks for the reply, unfortunately I don't have many tools for my work, just the usual hand tools plus a 30 year old bandsaw, a home made 8 inch sanding table using a washing machine motor, an equally old jigsaw and my favourite, a Proxxon Moto tool.
All of the cutting out was done using the bandsaw or jigsaw.
How I would love a selection of machines but have neither the space or finance any of them.


Mike.
Title: Re: Bigish Aquarama Special Build
Post by: derekwarner on September 20, 2017, 10:00:09 AM
Thanks Mike for the understanding.......it is always good to see quality fit for purpose components selected for drives  :-))

Having said this, will the drive line not always be in compression rather than tension when running ahead?

Derek
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on September 20, 2017, 11:31:57 AM
Not the case Derek, any thrust fwd. or reverse is stopped at the FL8 as the shafts are locked  at that point by 2 grub screws in each 8mm bearing onto each of the sleeves and 2 in each reducing sleeve on to each shaft and the bearings themselves have absolutely NO backward or forward float.
That was the whole point in using them.


Mike.
Title: Re: Bigish Aquarama Special Build
Post by: derekwarner on September 20, 2017, 11:52:09 AM
Mike ...when I looked for 'FL8 floating bearings' the only meaningful page was the SKF link for the same part number...but this relates to two bearings in combination but apart with the <.....> and >......< capacity

I understood why you had chosen such a bearing O0....and is good to understand for members [me included].....as to the capability of these FL8 assemblies

Is a WEB link available?.....  Derek
Title: Re: Bigish Aquarama Special Build
Post by: canabus on September 20, 2017, 12:02:51 PM
Hi UK MIKE
Very nice setup !!!
Quiet as a mouse !!!
We realigned and upgraded a drive line in a mate's boat.
The red universe joint went again!!!
Replace the bearings and shaft, realigned the motor mount which was the main problem.
Used my motor alignment tool and installed the motor with a solid coupling.
The motor is rated for 18 volts, but, only runs 12 volts.
We run it on 18 volts and the owner said it's quieter than ever!!
But why is the motor revving so hard !!!
He was totally happy with our upgrade and that carton of beer was dam nice.

The boat was in the water at the weekend(only 12 volts) the quietest boat ever!!
   
  :-))
Title: Re: Bigish Aquarama Special Build
Post by: martno1fan on September 21, 2017, 12:29:07 PM
Hi Mike if you still have the first one you half built id be interested in buying it and finishing it off and using it as a plug to make a fiberglass version .
Mart
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on September 21, 2017, 01:05:05 PM
So sorry Martin, I took it to the local council tip along with some other rubbish that had to go.
Shame !!

Mike.


Title: Re: Bigish Aquarama Special Build
Post by: martno1fan on September 22, 2017, 05:44:08 AM
So sorry Martin, I took it to the local council tip along with some other rubbish that had to go.
Shame !!

Mike.

<*< <*< <*< hehe oh well worth a try mate no worries .
Title: Re: Bigish Aquarama Special Build
Post by: bj on September 23, 2017, 07:39:09 AM
Mike ...when I looked for 'FL8 floating bearings' the only meaningful page was the SKF link for the same part number
Is a WEB link available?.....  Derek
The part in the picture is what I knew as a Pollard Self Aligning Cartridge Bearing (designed for agricultural use) but they seem to be defunct now.
Nearest that I could find was http://www.bearingson.com/category/2-bolt_flange_bearings/cast_iron_2-bolt_flanges/saft200_series/1_2-bolt_ductile_flange_bearing_saftd205-16g.asp?page=2&SortType=0 (http://www.bearingson.com/category/2-bolt_flange_bearings/cast_iron_2-bolt_flanges/saft200_series/1_2-bolt_ductile_flange_bearing_saftd205-16g.asp?page=2&SortType=0)
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on December 08, 2017, 04:15:34 PM
Hi.
The build is not dead but is on hold due to family health reasons.
My wife has been in hospital for several weeks but is now home, unfortunately as yet, cannot do much for herself so I have been looking after her of course as well as running the house and seeing to her little dog Albert. Didn't realise how much involved in keep a home going.
To make matters worse, her Father of 95 passed away very recently which has compounded the problem.

Anyway, back to the build.
I have had to bring the boat along with the wood, electronics and all of the bits that are needed to finish the build indoors due to my shed getting quite damp in the winter months and don't want to risk any damage to anything.

I have however made the twin rudder control linkage and fit the servo. All of the materials excluding the 2 tiller arms I already had leftover from my flying days.
The servo is a 12.5Kg metal geared digital waterproof type and the pushrods are carbon fibre tube. The bellcrank I cut from Paxolin sheet.
It seems to work quite well but needs a little work work before it is finished.

Here are some photos of the assembly, they may be of interest.
Title: Re: Bigish Aquarama Special Build
Post by: Martin [Admin] on December 08, 2017, 06:02:58 PM
 
Good to have you back Mike.

Our kindest regards to your good lady, we wish her well.   O0





Blue anodised aluminum ball end joint .... that's POSH for you!  :o
Title: Re: Bigish Aquarama Special Build
Post by: martno1fan on December 11, 2017, 06:28:47 AM
Sorry to hear about your good lady Mike , i wish her a full recovery and hope you both have a good Christmas .
Mart
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on December 11, 2017, 09:02:29 PM
Sorry to hear about your good lady Mike , i wish her a full recovery and hope you both have a good Christmas .
Mart

Many thanks Martin, I'll pass your good wishes on to her.
Mike
Title: Re: Bigish Aquarama Special Build
Post by: Davo on January 05, 2018, 05:17:07 PM
A very neat well engineered solution to the steering requirements.
You may already have it in hand but I would think of adding some vertical ply stiffeners between the rudder posts and the transoms for and aft. Hitting debris with the rudders at speed could otherwise twist the posts and damage the hull. I see you have an amount of floor stiffening but a bit extra may be useful.
A masterclass in woodwork.
Looking forward to the finished boat.
I hope your wife is recovering well and 2018 sees improved health.
David
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on January 06, 2018, 01:51:02 PM
Many thanks for kind words David.
Will take on board your suggestion re the rudder post reinforcement, never gave that a thought !!
Mike.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on March 31, 2018, 03:20:17 PM
Build resurrected, at last!

Have revamped the transmission system as I wasn't convinced that there would be enough power from the motors.
The replacements are 50mm size, 1500 watts each and 6 cell Li Po's.
Have completed the exposed shaft setup,(just fitted dry at the moment).
Also have altered the motor mounting.

Here are some photos of the work so far.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on April 28, 2018, 04:30:48 PM
Back in shed now so this thread may get a little more interesting.
Having recovered from illness, both my wife and myself, progress will start to be made, also, have had a long wait for mahogany.

Here are some photos of the completed spray rails and transmission, water pickups, propshaft p brackets and rudders temporally fitted.

Mike.

Title: Re: Bigish Aquarama Special Build
Post by: ukmike on April 28, 2018, 04:42:13 PM
One more photo which I forgot.
Shaft tubes in place, might make some small fairings covering the tubes.
I need 5mm more thread cutting onto the shafts to enable  the fiiting of the rear cones but the shafts are 316 stainless and I don't have the wherewithall
to do this, any suggestions most welcome.

Mike.
Title: Re: Bigish Aquarama Special Build
Post by: Davo on May 03, 2018, 08:44:25 PM
Amazing woodwork re all that planking.
Looking at the rudders, would it have been possible to put a crank on the left rudder at 3 o'clock and just linked (as shown) to the other rudder? It may take some of the energy losses and play out of the system that the centre crank induces. In saying that, either system should work fine.
Hope it is progressing well.
David
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on May 04, 2018, 05:03:59 PM
I have no concerns re my rudder linkup, no slop and very accurate centering.
Here are some pictures of the last 3 days work, I only spend about 3 hours per day in there.

The transom is complete with the exhausts trial fitted, they will be chromed later.

The work at the stern was really challenging as I had to get the angles on both sides the same, took several attempts.
Will be able to make and fit the side decks so that the upper hull sides can be completely planked.

Have also fitted 2 fans above the motors, will give some thought to maybe a cowling to direct the airflow, although it would be good if some of the air
could be spilled onto the two ESC's.

Title: Re: Bigish Aquarama Special Build
Post by: ukmike on May 27, 2018, 04:03:02 PM
The stern has been an absolute nightmare, must have made the pieces half a dozen times and each time just couldn't get them to fit, so, have now disregarded the plan and made things up as I go along.Have wasted vast amounts of Mahogany which is not cheap, especially 100mm x 13mm x 1.3 mtr planks.
Anyway, have completed one side, (still needs more sanding), and used the pieces as templates to complete the other side, also, have wasted money on "Mahogany filler", alas, no one seems to know it's colour, they have been cream,orange and even a supposedly a highly regarded German made one which turned out to be purple !!Have resorted to making my own which is water based, very easy to sand and doesn't turn black when the sanding dust is added, unlike adding the dust to PVA or Aliphatic glue.

Here are a few photos of my labours, (4 weeks), the nearly completed left side which has been sprayed with washing up liquid and water just to give some idea of the colour when varnished.

Title: Re: Bigish Aquarama Special Build
Post by: ChrisF on May 27, 2018, 06:20:28 PM
When it's finished it will look beautiful so hopefully the frustrations will be long forgotten when it is.

Lovely work and detailing.

Chris
Title: Re: Bigish Aquarama Special Build
Post by: colin-stevens on May 27, 2018, 07:55:02 PM
It is a thing of beuty and can only get better.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on June 04, 2018, 07:36:54 PM
A little more work done on the stern.Bathing slide very near complete, apart from the vinyl upholstering and the other side of the stern ready for final shaping.Bathing deck floor nears completion with the transmission hatch fitted, havn't decided how to secure it yet tho'.
Some pictures...




Title: Re: Bigish Aquarama Special Build
Post by: ukmike on June 27, 2018, 10:32:17 PM
Some more pictures of recent work.
Mike.



Title: Re: Bigish Aquarama Special Build
Post by: johnv on June 28, 2018, 12:25:39 PM
Hi it's John V can you what size is the boat you are building .Only mine is 900mm long and 250 wide and the one I have is wood built .With single prop .Looks like you are doing very well cheers John V
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on June 28, 2018, 02:45:35 PM
Hi it's John V can you what size is the boat you are building .Only mine is 900mm long and 250 wide and the one I have is wood built .With single prop .Looks like you are doing very well cheers John V
Hi John.
The boat is 1.25mtrs x 380mm, about 1/7th scale.
Mike.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on July 19, 2018, 03:08:53 PM
Latest work on the boat, but held up for a few days due to my,(new), B&D mouse sander blowingup.Fortunately, was able to get a full refund so have ordered what, on paper, should last a bit longer.
Here are the latest photos but before that I have a printable sheet of guages that can be enlarged and printed from Windows Photo Viewer.I have used glossy photo paper and the results are very acceptable but the photos are on plain A4 printer paper.
If anyone wants a copy let me know and I will email it to you.
The photos.

Title: Re: Bigish Aquarama Special Build
Post by: derekwarner on July 19, 2018, 11:57:58 PM
Very impressive Mike  O0 ..........................

Did you resolve the vibration/resonance?

Derek
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on July 20, 2018, 03:00:36 AM

Hi Derek.
I have lined the whole of the inside where possible using 10mm adhesive backed H/D foam which has made a huge difference.
The foam whilst high density is very light so little weight has been added.
Very pleased with the results.


Mike.
Title: Re: Bigish Aquarama Special Build
Post by: derekwarner on July 20, 2018, 03:28:39 AM
Mike.....the way you have left whitewood curled shavings on the deck is very creative photography  %)

With the motor cooling fans.......I suppose you will need to wait for an extended run [loaded] in the water to understand the motor temperatures

Will the fans pull warm air upwards away from the motors, or push cooler ambient air down over the motors?  :-X

Derek
Title: Re: Bigish Aquarama Special Build
Post by: martno1fan on July 23, 2018, 12:05:05 AM
Instead of printing the guages on photo paper  get some printable vinyl and print on that , much thinner and will work better,you can also buy a thin sheet of vinyl laminate to put over the top to protect them  .Builds coming along nicely .Fans should work well for you . a mate of mine uses two in one of my Thunderbolt Cat hulls at over 60 mph and they work well.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on July 23, 2018, 10:16:53 PM
Mike.....the way you have left whitewood curled shavings on the deck is very creative photography  %)

With the motor cooling fans.......I suppose you will need to wait for an extended run [loaded] in the water to understand the motor temperatures

Will the fans pull warm air upwards away from the motors, or push cooler ambient air down over the motors?  :-X

Derek
Hi Derek.
The fans are symmetrical so I just need to flip them over to reverse the air flow but as yet I haven't decided which way to have them.
Later in the build I will do some smoke tests to check which would be the best way to achieve maximum cooling effect.
I think the motors and batteries will get quite warm due to the very course pitch propellers.
The louvre panel in the rear seat can take in cold air from the cockpit or expel hot air from the motor / battery compartment, also, there are 2 air inlet/outlet
positions, one either side of the rear seat back. Again, a smoke test might show the better solution but it may well be the case under actual running.


Mike.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on July 23, 2018, 10:24:09 PM
Instead of printing the guages on photo paper  get some printable vinyl and print on that , much thinner and will work better,you can also buy a thin sheet of vinyl laminate to put over the top to protect them  .Builds coming along nicely .Fans should work well for you . a mate of mine uses two in one of my Thunderbolt Cat hulls at over 60 mph and they work well.


Thanks for the info Martin, didn't know about printable Vinyl, sounds as tho' it may be the way to go.
The gauge bezels along with the exhausts are at the chrome platers at the moment so I can't show them yet.
They are to be glazed which will prevent any water getting at the dials but not help against light fade which is a problem with ink jet ink no matter what medium it is printed on.


Mike.
Title: Re: Bigish Aquarama Special Build
Post by: martno1fan on July 24, 2018, 12:29:33 PM
Yea ive started using lots of vinyl as i now have a vinyl cutter ,its great for doing designs on my hulls and names etc if you need anything let me know.I havent tried the printable vinyl with my printer yet but it seems it works well if you have a good printer,you then just apply the laminate sheet over them ,saves having to laquer over them .Made these decals for a customers Tomahawk hull i made him .By the way i think the clear laminate could be uv safe ie potects decals against the sun at least some are .
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on August 27, 2018, 02:11:03 PM
More workdone.Front now planked, side decking shaped and the Dashboard, along with the Exhausts, almost done.No steering wheel yet as I don't have access to a milling machine, the wheel I want to duplicate is the later Momo type as I find the American Cadilac type that was used on most earlier Aquarama quite vulgar.
Some pictures.



Title: Re: Bigish Aquarama Special Build
Post by: Martin [Admin] on August 27, 2018, 05:43:39 PM
 :-))
Title: Re: Bigish Aquarama Special Build
Post by: TomHugill on August 27, 2018, 08:54:32 PM
Absolutely stunning!
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on August 27, 2018, 09:08:56 PM
Absolutely stunning!
Thanks for that Tom.
 I thought that the difficulty would decrease as the build progressed but not so, each next stage it more complicated than the one before. I fear this is going to take a long time to finish.
Mike.
Title: Re: Bigish Aquarama Special Build
Post by: F4TCT on August 27, 2018, 09:13:28 PM
your bossing it!, keep up the quality work.


always wanted to build this kit but i'm far to impatient and lack in talent...


Dan  :-))
Title: Re: Bigish Aquarama Special Build
Post by: TomHugill on August 27, 2018, 09:18:34 PM
Thanks for that Tom.
 I thought that the difficulty would decrease as the build progressed but not so, each next stage it more complicated than the one before. I fear this is going to take a long time to finish.
Mike.


It'll be well worth it, they run so much better at this scale!
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on August 27, 2018, 09:26:51 PM
your bossing it!, keep up the quality work.


always wanted to build this kit but i'm far to impatient and lack in talent...


Dan  :-))
[/quote
Hi Dan.


It's not a kit,  I have a 20 year old plan which I used for the frame shapes but it wasn't all that accurate so for the last year I've been referring to pictures on the net.
Fortunately there are lots and are very helpful but all of them have been restored so no two are the same.
Consiquently, mine is a bit of a mix and match.


Mike.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on September 12, 2018, 02:18:43 PM
Recent work.
1st. coat of varnish on the hull, gives me some idea of the colour which I quite like.The dash top completed with the instrument visor.
Have started to make the Momo type steering wheel which the later models and some restorations used.The rim is from a Stainless Steel "O ring", 60mm od 50mm id.The spoke assy. is silver soldered in place, which I cut from Brass sheet, then grey primed it to show up faults.It will be Matt very light Grey later.
The rim doesn't need much attention as it will be leather covered.
lots lots of sanding now and umpteen coats of varnish.
Some pictures.
Mike.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on September 21, 2018, 03:33:53 PM
Hi all.


A couple of pictures of the boats 4th coat of varnish, got away with no dust on previous 3 but this time quite a lot, including some Midges.
Not a problem this time because I cut back to flat each coat.
Haven't been filtering the Varnish as yet but the last 2 or 3 will be.


Stripped all the paint from the steering wheel as it lifted from the S/S and brass. I need a better primer.
Any suggestions anyone ?
Given up on the leather covered rim as it was impossible to stitch. Will paint it also.


Have decided to change the flexible motor couplings from the spiral design to a Plum type. The clamping method of the latter is far superior to the grub screw method of the spiral type, small grub screws of any type do not like gripping 316 Stainless shafts. Here's a picture of a Plum coupling.


Mike.
Title: Re: Bigish Aquarama Special Build
Post by: papymouzot on September 21, 2018, 05:01:03 PM
Hi Mike, your work is incredibly good, excellent...  %%  This is going to be a real beauty, your attention to details is really admirable. :-))  I wish I could do a similar build and varnish quality as you do... this is the varnish which stopped me in my first Riva build...


Maybe I should come to England to get some teaching  ok2
Title: Re: Bigish Aquarama Special Build
Post by: Perkasaman2 on September 21, 2018, 06:50:32 PM
This is first class work Mike. I admire your patience and perseverance.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on September 26, 2018, 03:02:50 PM

Hello.

Dashboard complete and fitted now, apart from 2 small ignition keys. It is removable at anytime by undoing 1 screw.

Working on the 2 Portlights and the nose, (Musetto), may take quite a while !!

Thanks for you kind replies Charles and Perkasaman2.
Here are a couple of pictures.

Mike.


Title: Re: Bigish Aquarama Special Build
Post by: ukmike on October 18, 2018, 03:48:11 PM
Hi.


A few photos of the Portlights that I am making, one complete apart from buffing and the other just started.
Not super accurate, as this is the first time that I have ever used a lathe but will look better when chromed and glazed.


Mike.



Title: Re: Bigish Aquarama Special Build
Post by: Hotglove on October 26, 2018, 05:31:39 PM
Just a thought about covering the steering wheel, how about using some heat shrink about the same diameter as the wheel? cut a short length, just over twice the width of the wheel rim, shrink it in place and, perhaps add “stitching” with a pyrography iron.
I sometimes simulate leather by painting with Matt enamel or acrylic, then polishing with coloured shoe polish, it is surprising how much different the texture is from a gloss or satin finish, especially if the model has a number of different surface textures in a small area.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on January 22, 2019, 04:46:18 PM
No progress on the hull as it's too cold and damp in my shed, so, it lives in the spare bedroom at the moment awaiting Spring.
Meanwhile, working on the seats and electronics.
The photo is of the Helmsman and the double Passenger seats, just roughed out and ready for a couple of coats of Dope to aid final sanding as I have used Balsa.
Will finish the rear seat and the rest of the items that need upholstering later.
The Photo shows the electronics that will be fitted.
The 2 small Blue PCB's are step up voltage controllers, they increase a small 7.2 volt LiPo battery to 14volts for the 3 cooling fans.
The 2 small Green PCB's are variable voltage controllers which are set to drive the 2 docking lights and dashboard LED's.
The larger Green PCB with the probe attached is a temperature monitor to be fitted in the motor,battery compartment. It has an adjustable alarm point which can trigger a free relay allowing me to fit an audible or visible external device, maybe a very high visibility LED or some sort of sounder, or both.
The other larger Blue PCB just for setup purposes for the other modules, will be mounted in a hand held box to make it portable.
The final photo shows all of the interior upholstered parts which I hope to reproduce, the only difference will be the piping colour, I intend to use Red in place of the Blue.
Title: Re: Bigish Aquarama Special Build
Post by: SailorGreg on January 22, 2019, 05:06:27 PM
Nice work Mike.  Roll on spring, I am looking forward to seeing the hull completed.  :-))
Greg
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on February 24, 2019, 03:50:01 PM
Some work on the front seats, just roughed out at the moment.
After several attempts have made the first length of piping, enough for the front seat only but the method works reasonably well, unfortunately I need to make
about 4 meters more to have enough to complete all of the upholstery, it's a right fiddle.
The photos show work so far.
Mike.

Title: Re: Bigish Aquarama Special Build
Post by: ukmike on March 29, 2019, 03:03:51 PM
Have abandoned the seats for the moment,(they were rubbish).Will make a new set later.

Working on the windscreen now, not something that I've been looking forward to.
Have made a former to bend the Perspex screen around, will be using the draping method, hopefully it will be o.k. first attempt but I do have a spare
piece if needed.

A few pictures to show the screen plastic cut to shape and the bending former which is a bit Heath Robinson looking inside, but very strong with absolutely no twisting or bending possible.
The main thing tho' is the bending face which is glass smooth.

Decided to make the frame from Brass and not Aluminium which was my first thought. The Brass will be somewhat more difficult but easy to silver solder.

Mike.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on April 20, 2019, 11:01:59 PM
Finished windscreen after bending, fortunately all went well.


Windscreen outer frame made from Brass sheet cut into 8mm wide strips then silver soldered together.
Due to the high cost of a sheet of 1.2mm. Brass sheet 1mtr. long, I bought 2 solid Brass door finger plates which are 75mm x 450mm and very reasonable price.
By joining 2 strips they were long enough for the job. There will be a polished Aluminium inner screen added to add rigidity. The Brass outer frame will be Chromed.


Mike.


Title: Re: Bigish Aquarama Special Build
Post by: ukmike on June 28, 2019, 10:49:40 PM
Managed to do a little more work on the boat since last post, it's quite difficult to find any time to build these days due to my wife's ongoing illness.


Here are a couple pictures of some work done showing the upholstery in the Sundeck and Bathing Slide, not fixed of course until the varnishing is complete.
One showing the  Dash top Sunglasses / Marlboro / bits and bobs tidy, don't know it's proper name.
I turned the Plexiglas support posts from Aluminium they are 4mm dia. Cross drilled and tapped M2 to accept 2mm grub screws then slotted using the lathe with chuck locked and my little Proxxon rotary tool mounted in the tool post and fitted with a 60 mm diamond dust disc.


Have scrapped the brass windscreen frame, too flimsy and made a new one from 2mm Copper. Much better.
Next job is the cockpit upholstery as I binned the first attempt as it was rubbish.


Mike.





Title: Re: Bigish Aquarama Special Build
Post by: ukmike on August 06, 2019, 07:15:32 PM
Hi.
Have put this build on hold for a while whilst I help a very good friend out in France with his Amati Aquarama build who is in a bit of a muddle.
Should be done in a month or so then I will resume my build.


Here are a couple of pictures of some more of the upholstery before ceasing work.

Title: Re: Bigish Aquarama Special Build
Post by: ukmike on October 03, 2019, 09:40:09 PM
Rear cockpit and seat upholstery finally complete after several design changes to both.
Front seats next, which will be quite challenging, for me at least

Here are some photos.


Mike.



Title: Re: Bigish Aquarama Special Build
Post by: Capt Podge on October 03, 2019, 09:58:25 PM
I've never seen such a beautiful job made, of the cockpit seating, but also so, so clean as well - I doff my cap to you.


Regards,
Ray.
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on October 03, 2019, 10:10:32 PM
Many thanks Ray, praise indeed.


It took many changes and modifications to arrive at the final design.
I fear the two front seats will be even more difficult.


Mike.
Title: Re: Bigish Aquarama Special Build
Post by: Mikecotton on October 13, 2019, 02:13:40 PM
Wow ! Just realised I’ve been messing about all these years. Is the upholstery made from foam slices ? What is the final finish ?
Mike C
Title: Re: Bigish Aquarama Special Build
Post by: ukmike on October 13, 2019, 05:20:28 PM
Hi Mike.


The foam is in one piece, not slices.
I use Plastazote foam which is unusual, (if not unique), in that it is easily sanded, quite stiff but can be shaped. Also, closed cell, so doesn't soak up water.


I made the cushioning effect by forming shaped and grooved channels to receive the stitching.
This was done using a soldering iron set to 290 deg.C, with appropriately shaped tip. The result can be seen in photos earlier in the blog.


Are you referring the upholstery final finish or the boat it's self ?


Mike. 
Title: Re: Bigish Aquarama Special Build
Post by: Mikecotton on October 13, 2019, 06:03:54 PM
The upholstery effect was my primary interest although the ultra high gloss finishes always escape me.
How do you keep the dust off ?? Do you give a final buffing ? I usually feel the final coat has the best gloss but not consistently over the total surface. I found some 6000 grit while on holiday in USA but even that needs further work.
I’ve never used leTonkinois - is it worth the money. As I said in my first post ,comparatively, I’m just messing around !
MikeC