|08-08-2011, 10:46 AM||#1|
I am: jim
Join Date: Feb 2009
Location: Brighton On
Radio of choice:
# of RCs: 7
Feedback: 10 / 100%
Total Props: 0
repairing a velox
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unfortunately on its maiden test flight after about 5 min and a full range of manoeuvres the engine suddenly decided to make a left turn and the rest of the plane a right turn. was a sight to behold. after the initial shock wore off gathered up the bits and afterwards at home where i could cry in peace.
the engine (appears totally undamaged), mount and supporting structure had broken away more or less intact and to my shock it was apparent that the bonding failures were cohesive not adhesive as one would expect. it appeared that either there was a minimum of epoxy used and/or mating of the parts was carried out just before working time had run out. no damage to the wings slight to the hor stab and all electronics still operating (floated down into tall grass. repair seems a possibility.
couple questions based on the failure mode should i cut my losses and run or assume rest of the build is ok (hard to swallow that one). would try to add reinforcing epoxy fillets in the structure where possible.
if i do repair how best to prepare the surfaces that have all ready been soaked with epoxy to ensure a good bond.
|08-08-2011, 10:55 AM||#2|
RCC Senior Contributor
I am: Gary
Join Date: Dec 2003
Location: Yorkton Sask
Feedback: 22 / 100%
Total Props: 0
Re: repairing a velox
Oh, not good, sorry to hear that Jim, I ment to get the instructions scanned and sent to you, but have been real busy trying to get everything done before operation tomorrow.... anything can be rebuilt, my Velox went in last year, the Y harness for the elevator servos messed up on me... biggest damage was the firewall. I pulled out the entire mount/tank assembly and made a new one and put it all back in.... went together pretty nice... flies great again. the one thing I did do is on the motorbox, I used some glass cloth on the corners and epoxy as well as drilled the corners and installed dowels. the factory joints were kinda sad in that area. Mind you I am running a 26cc gasser... good luck with your rebuild, it will fly again..
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