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AndyBenn

Typhoon Fuz strengthening

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AndyBenn

I've just bought my first mouldie, an RCRCM Typhoon with the Kevlar tows in the nose and I'm not sure if I need to strengthen the nose.

I'm putting a Kira 480-31 with G/B to run on 4S and a 16x10 prop. Question is do I need to add a layer of cloth inside and how do I go about it?

I read somewhere that the nose will twist and the gelcoat will crack, but I'm concerned there won't be much room left in there for the powertrain.

Thanks in advance

Andy

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Scram

I put a layer of carbon cloth in mine and it has a 37mm diameter outrunner motor in there.  Make sure it is well pressed in, maybe using a long balloon or cycle inner tube.  If you also add a layer of peel ply followed by a couple layers of paper towel and wrap the balloon in thin polythene, you should minimise unnecessary extra epoxy weight.

So, I don't know if you will have difficulty getting your motor in but a 4S may prove more difficult depending on capacity.

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AndyBenn

Thanks Jerry. I think a layer of carbon cloth is a good idea. Glad to hear you can still fit the motor in!

Cheers

Andy

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Scram

Bit slow response ........... if one was needed  ;)

Typhoon29a.JPG

I felt rear support of the motor was necessary due to its weight and overhang from the front mount

Typhoon28.JPG

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isoaritfirst

A good way to add strength without weight is to add a few formers.

 A thing circular former will stop the fuselage being able to bend and crack.

A flat servo style plate will also stop twist.

Even if you have to remove it to remove the motor or other parts.

A very quick way to add significant strength is a wrap of insulation tape, one wrap around that rear motor mount would stop the fuselage from being able to pull away from it if it tried to twist. 

I usually tape venerable areas if the conditions are such that i think landings may be tricky.

 

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bogbrush

I understand the electric typhoon fus benefits, long term, from strengthening around the servo pocket area to the rear of the wing trailing edge. 

Most slope typhoons break there too. I like the idea of a tape wrap there to beef things up on sketchy landing sites.  

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