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Old 01-14-2008 | 01:29 PM
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hogflyer
 
Joined: Mar 2005
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From: Wichita, KS
Default RE: Advice fixing up my first plane...

cjmdjm,

Can you post pictures of your plane? It would really help us out to see what damage there has been done, and this could get you some more specific instructions on repair.

How are the wings put together? The Alpha's I’ve built (and have Alpha 60) used a tube in the wing to set the dihedral, and tape to hold the halves together. If the factory supplied 1/4" tape was used to seal the gap, slide them all the way apart and check for any damage to the joiner tube or wing structure, and if no damage exists just slide them together and retape. I'd recommend using 2" clear packaging tape, and cleaning the covering with alcohol to remove any trace of fuel residue so the tape will stick. There is no need to epoxy the wings together - actually your better off not epoxying them so the will separate/move in the event of another mishap.

I did a wing repair article, [link=http://www.rcuniverse.com/magazine/article_display.cfm?article_id=910]"How To: Wing Repair"[/link] that is in the RCU Magazine How To section. I rebuilt the wings on an Alpha 60 (which is very similar to your Alpha 40) and this article shows what I did. Take some time and read through it – you’ll gain some insight on how the wing is constructed which should help in checking for damage.

Again, for the servo, it would help to see the damage. It above article shows how I replace some of the sheeting and added pieces of balsa for extra strength at the joints. You may have to add some extra bracing under the wood for the servo depending on the severity of the damage. Same for the ailerons – it would be very helpful to see what the damage is like before giving specific repair instructions.

You didn’t state what engine you have, but if it’s the Evolution .45 an 11 X 5 prop will work. I like the Hobbico NextStar 11 X 5 with the red tips – they are easier to see the tips when the engine is idling. But depending on the engine, an 11 X 5 may be too much prop and a 10 X 5 or 10 X 6 would work better. Let us know which engine you have.

Since you don’t have the 3-blade prop do you have the flywheel on the engine? This will have an impact on getting another spinner to fit.

Hogflyer