Model Boat Mayhem

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Author Topic: Queen Mary  (Read 56333 times)

Tug-Kenny RIP

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Re: Queen Mary
« Reply #175 on: March 14, 2017, 09:44:08 am »

Quote
She is becoming an epic build ken! What therapies do you use to get over porthole drilling?


All very therapeutic .   :}

As they say in  'Playschool' .....  now it's over to the square windows.   %)

ken
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TailUK

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Re: Queen Mary
« Reply #176 on: March 14, 2017, 11:44:52 am »

I love how you manage to express your mood while drilling the portholes.
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Tug-Kenny RIP

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Re: Queen Mary
« Reply #177 on: March 15, 2017, 09:17:56 pm »

 :}

Today I started fitting the prop shafts.  After a lot of fiddling I've come up with larger holes than I'd wanted.  I cannot get the tubes to lie any lower due to the hull shape and the steep walls.

I have made my own motor shelves and lined it up as best and as low as possible. Will glass it in when I'm satisfied all is well.



 
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ballastanksian

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Re: Queen Mary
« Reply #178 on: March 15, 2017, 10:04:37 pm »

As long as you can cruise the lakes of the UK gracefully, I see no problem. The holes might need filling though  :D
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derekwarner

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Re: Queen Mary
« Reply #179 on: March 16, 2017, 12:05:47 am »

Hullo Ken.....I did not realise that Mary had pairs of contra rotating individual propellers on both Port & Stdb sides?...or were they all installed by the Irish dockyard team on nightshift ;)

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Tug-Kenny RIP

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Re: Queen Mary
« Reply #180 on: March 16, 2017, 09:37:01 am »


What can I say  ...............................   I love you both.    {-)     {-)



ken

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Colin Bishop

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Re: Queen Mary
« Reply #181 on: March 16, 2017, 09:55:23 am »

Actually it makes perfect sense. The model is so big that Ken will have to sail her on the spot. (Which also makes it easier to count the rivets).

Colin
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JimG

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Re: Queen Mary
« Reply #182 on: March 16, 2017, 12:06:41 pm »

Plenty of opportunity for weathering the finish and adding rust and flaking paint if you want to represent her present state.

http://photos.presstelegram.com/2017/03/photos-queen-mary-is-in-dire-need-of-repairs/#1

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warspite

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Re: Queen Mary
« Reply #183 on: March 16, 2017, 07:01:23 pm »

Drilling so many holes he even managed to subconsciously drill what he was feeling further to the right (3rd and 2nd from right)
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Tug-Kenny RIP

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Re: Queen Mary
« Reply #184 on: March 20, 2017, 08:20:01 pm »

I have been working on the blocks to support the prop tubes and have designed these.

props reversed for amusement.    :}


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Tug-Kenny RIP

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Re: Queen Mary
« Reply #185 on: March 20, 2017, 08:23:38 pm »

After gluing into position and filling the little gaps in the hull, here is the final look.  The edges have been sanded down smooth and red oxide applied.




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ballastanksian

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Re: Queen Mary
« Reply #186 on: March 21, 2017, 08:25:07 pm »

Bloomin heck, you will win the blue riband if just for the speed you are building her Ken!
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Tug-Kenny RIP

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Re: Queen Mary
« Reply #187 on: March 22, 2017, 09:16:49 am »


Thanks Ian.  Just finished the rudder but have no servos in stock.   :((

Pictures to follow as I'm going out today on a service call for Hammond organs.  (if I can remember how they work !)    tehe

Cheers

ken
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ballastanksian

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Re: Queen Mary
« Reply #188 on: March 23, 2017, 09:44:02 pm »

Now that is interesting. can you play or are you just good at making them work?
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TailUK

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Re: Queen Mary
« Reply #189 on: March 24, 2017, 08:51:22 am »

So you can fix one of these but you baulked at all those rivets.
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Tug-Kenny RIP

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Re: Queen Mary
« Reply #190 on: March 24, 2017, 09:39:15 am »

Now that is interesting. can you play or are you just good at making them work?

I did learn a tune or two.   ;)  Although I don't have one myself, when I'd finished the repair, I automatically went into play mode.  It made me wish I had one of my own but my wife hates them and won't have one in the house.

That's a nice condition Tone generator, TailUK.  Never saw one this good in all my 30 years.

One of the last one I 'did' was when they dropped the organ whilst unloading it outside the venue, for a concert in Cardiff with Brian Adams. (keys akimbo etc !)


On with the build ............  I have fitted the new rudder and linkages and lined up the servo, which was seized !!   so new ones on order.
 
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Tug-Kenny RIP

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Re: Queen Mary
« Reply #191 on: March 24, 2017, 09:44:09 am »

I have made the motor brackets and fitted 4  (yes four) 550 motors which I had left over from truck building.  These are rated for 7.2 volts and run fast, so the plan is to run them through a speed controller at 6 volts with a reduced voltage via the radio percentage control.  If needed  (by increasing the power)  the captain can go water skiing when he wants to. There will be a choice of running just two motors for gentle cruising and saving battery life.

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John W E

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Re: Queen Mary
« Reply #192 on: March 24, 2017, 05:43:03 pm »

Hi ya Kenny, the model is coming along great.  Can a make a gentle suggestion - your prop tube supports where they come to the end of the prop tube - you have them flat - are you proposing to taper them in a little bit (the shape of a wing) as if you leave them flat like you have done - they may cause turbulence - and you will lose a lot of performance from your model.   The other thing is - remember - the comment made about your props where you have one left hand/one right handed one - on the same side of the ship - well here is a pic I found and its from the link I put on about South Tyneside Archives and its of the RMS Mauretania = have a look at the props :-)

John
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carlmt

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Re: Queen Mary
« Reply #193 on: March 24, 2017, 08:21:02 pm »

Actually Ken, that is a pretty valid comment about the propshaft fairings leading to the props.
As it is at the moment, you are running the risk of actually blanking the props entirely by the structure of the fairings - the props themselves are not much bigger than the end area of the fairings.  Would suggest you remove the props and sand the fairings down so that they feather to the size closer to the shaft diameter where they meet the prop to allow the water to flow smoothly around the fairing and into the prop itself.
Looking cracking in any case mate!!!
Carl  :-))

Tug-Kenny RIP

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Re: Queen Mary
« Reply #194 on: March 24, 2017, 08:30:12 pm »


Hiya John.  Thanks for the information. It would be no problem to round the edges.  I am assuming you mean to curve the edges  inwards towards the tubes.  ?

The  Mauretania  picture does suggest opposing props between front and back tubes on each side.  I have  'rigged'  mine to be equal in line and opposite to the other side.  When I start water testing and to save Amps, I plan to use the rear pair only,  which are opposed for better running.

Thanks for the input Carl.  Obviously a major problem indeed so I shall taper them down to meet the tube.

Cheers

ken
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Tug-Kenny RIP

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Re: Queen Mary
« Reply #196 on: March 24, 2017, 09:17:02 pm »


Thank you Colin.  Will replicate this.

Had a fun day trying to make the anchor recesses.  What a horrible design, I must say.  Still haven't finished it as I'm trying to get it to look right. Angles all over the place  !!

ken
 
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ballastanksian

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Re: Queen Mary
« Reply #197 on: March 24, 2017, 09:23:19 pm »

You'll get there ken. What with modifying the fairings, setting the props and getting the anchor recesses right, she will be a thouroughbred.

Have you retired from the model truck world now?
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Tug-Kenny RIP

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Re: Queen Mary
« Reply #198 on: March 24, 2017, 09:30:05 pm »


Thanks Ian,  she very interesting and the time passes so quickly.

I still have the Tamiya truck range on the shelves.  I have something else to occupy my mind at the moment.   %)   busy me.  However.... you never know.

Cheers

ken

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Tug-Kenny RIP

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Re: Queen Mary
« Reply #199 on: March 26, 2017, 10:36:15 am »


Modifications well underway.   After a bit of sanding and smoothing here is the final result.

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