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[dickyp]

Just received the plans for the 34" RAF crash tender bought on ebay, and must say I am very disappointed with them.

Whilst the original Aerokits drawings are absolutely fine, but the details on the parts template which appear to be hand drawn and do not correspond with the originals

I've also bought a powered fret saw and am currently cutting out the parts.

The drawings state 4mm plywood generally however I can only find 3.5mm wbp ply. Will this be strong enough

Your advise would be appreciated

[Circlip]

When the Fire Tender (and other Aerokits renderings) escaped onto the market, Metrication was far into the future so 1/32"  1/16"  1/8"  3/16"  1/4"  3/8" and 1/2" were the norm. Sadly, those who thought metrication was going for the nearest size (Not necessarily in the correct direction) screwed a lot of plans up.

   Original thickness for that piece would be 3/16" or 4.7mm

  Regards   Ian.

[The long Build]

If these plans are the original ones or copy of,  they did not include much as they were supplied with a semi kit and so the ribs were already cut out as were most of the parts, the plans were more for information really..

[dickyp]

Thanks for responses guys.

Do you see any problem with using the 3.5mm plywood ?

[HS93 (RIP)]

3.5m ply will prob  e a bit better you need to keep the weight down as much as you can think about using plasticard wherever you can like on the two roof sections and the well deck even the sides of the superstructure , they where desigend mainly for IC so if you want good performance and run time keep it light or it starts costing you for better batteries etc
are you going for single or twin like the full sized boat?

Peter

[brianB6]

Here is the original Keil Kraft plan that came with the kit.
I used the outlines to build a cabin cruiser! 

[triumphjon]

thats a nice conversion brian , who knows that could be what one of the full sized ones now looks like !

[dickyp]

Thhanks again for your advice.

Am open to suggestions on power, but thinking of a Graupner 600 motor with a 35mm prop.

Will this enable plaining or need something bigger

emailed Action for advice  on wiring etc but no response as yet

Is there a diagram on the site somewhere

I have no experience with plasticard; invented since I last did modelling

[HS93 (RIP)]

a 600 will if you are lucky and build it light MIGHT get it on the plane with light weight batteries, you need to look at two of them(twin shafts ) or 700bb race motors, but most people now go brushless as it is the same price a Giant cod thumper outrunner which cost about £23 and a speed ctr that are the same price as brushed ones are far more efficient and last longer plus will push it for a lot longer .
on the fire boat web site there is a set up secthion if you scroll down you will get an idea what is being used http://modelfireboats.com/index.php#rc/setups.php

this is an ideal motor

http://www.overlander.co.uk/motors/tornado-thumper-v2-4240-890kv.html

Peter

[triumphjon]

ive recently been involved with rebuilding a 34 " crash tender for wokingkev ( surreykev on the fireboat site ) which has been fitted with a low drain 600 brushed motor from our local shop , fratton models , its running on a 11.1 volt lipo battery which has given a reasonable turn of speed

[dickyp]

Having looked through the plans and instructions can someone advise if 2 gunwhale stringers go under the skin or does one go under and 1 on the outside please

Thanks

[HS93 (RIP)]

two under then a 1/8 sq over the skin

Peter

[dickyp]

Thanks Peter; I assume this also applies to the chine ? stringers

What a problem I'm having with the supplied template; The bulkheads are asymetric, the cabin sides extend back to bulkhead 5 whereas hey should be back to the transome.

I,ve heard of trial and error but this is rediculous

I started cutting out the parts from the template 10 days ago and having set them up dry, what a sight
I've now scrapped the whole lot and am making my own templates from the elevations and plans. This is a chore but I feel to be getting somewhere now

Time will tell

Thanks for your information

Regards

Richard

[dbninja]

two under then a 1/8 sq over the skin

Peter

Peter

you hit the nail on the head...

the spray rails on the outside of the hull are probably more important than anything else when it comes to getting this model to perform well...  they do a tremendous amount of work clearing water away from the hull and lifting it onto the plane....  keep them square and sharp...

my 34" crash tender with its "out of date" graupner speed 600 on 9.6v nimh....



just look at those spray rails working overtime


David

[dickyp]

dave

your boat looks great

is it scratch built or from a kit ?

richard

[dbninja]

dave

your boat looks great

is it scratch built or from a kit ?

richard

it was built in the 60's from the original aerokits kit... i rescued it from ebay as a total mess and restored it a couple of years ago..

i got it cheap cos nobody bid on it.....  can't think why?

heres how it looked when i got it







looks a bit better  now


get yourself over to the fireboat website for lots of usefull info...  http://modelfireboats.com/index.php

David

[triumphjon]

thats a very nice looking restoration , lots of work gone into bringing that one back ?

[dbninja]

yep...
 a lot of work... but time well spent... this has to be my favourite model boat since i was a wee lad
Dicky p asked me for a photo of the internals...

its functional    not pretty!



uses a graupner speed 600 under the two round cooling grills and runs on 8 cells mounted in the balsa battery box.. the search light and vauxhall astra windscreen washer pump that supply the fire monitors (just visible bottom left) are all run off the same 8 cell battery pack

if you look closely you will see one of the original formers (the one under the front two cells of the battery pack) has been cut down to allow the battery pack to sit in the correct position in the aft cabin...  this is to get the fore/aft balance point just at the start of the aft cabin... important if you want the hull to get up on the plane easily.  have this boat bow heavy it will plough water all day for fun... stern heavy it will be awfull in the turns

hope this helps

David

[dickyp]

Thanks David

[triumphjon]

ours is also running on a 600 brushed motor , albeit a low drain variant , however the power for the motor is via an 11.1 volt lipo , while the lights and water pump are fed from an 8 cell aa pack

[Dicky-P]

I am now 10 weeks into my build of the 34" tender and looking forward to fitting it o



Could someone advise please, what the difference if any, is there between number 93 and 94

Thanks

[HS93 (RIP)]

there is nothing in the main construction just detail, and it also depends on whether it is pre re fit or after as most of the time they spent in RAF service as experimental craft , 93 had different fir equipment to 94 at one time also 93 has single eyebrows down the sides over the windows  thereare some differences at the rear at eather side of the tow hook 93 is just plane without extra support, I have a bit of info if you want it send me a pm with your email and ill send you some bits and pieces the pictures need to be kept full size so you can see the detail's have you decided on which boat you want to build yet ?

Peter