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Taylorcraft crash - 7/4/2012 8:25 PM   
comanche260c


 

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From: manorville, NY, USA
Status: offline 		Bought a 26 cc   taylorcraft back i  sept 2011   paid 1280 dollars for a bind and fly.. flew it first time in mid april and had 6 flights on it.  It has a 2 piece wing that a nylon screw holds it in place. That screw   screws into wing and catches on nut in wing. The nut has like 3/16 inch area to bite on. poor design in my book.  Well nylon bolt srtipped and caused  wing to seperate a bit from fusalage  and causing left wing leading edge to wobble,, causing plane uncontrolable and it was demolished. MY QUESTION IS do you think horizon hobby should replace it due to there poor design?????????? 

< Message edited by comanche260c -- 7/5/2012 1:48 AM >

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RE: Taylorcraft crash - 7/4/2012 9:15 PM   
Rodney



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Status: offline 		No

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RE: Taylorcraft crash - 7/4/2012 9:28 PM   
ggraham500



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Status: offline 		+1, no.

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RE: Taylorcraft crash - 7/4/2012 9:34 PM  1 votes
comanche260c


 

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From: manorville, NY, USA
Status: offline 		NO? why its  a poor assdesign that a nylon washer   grips on  a bolt by 4 threads.Guess if you bought a new car and wheel bearing failed on front wheel and you hit bridge you wouldnt expect compensation????????

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RE: Taylorcraft crash - 7/4/2012 9:43 PM  1 votes
Truckracer


 

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From: Des Moines, IA, USA
Status: offline 		If I knew there was a defect in a design I would have corrected it before flight. If I have knowledge of a defect and I don't correct it, the failure is mine for deciding to take off with an airframe with a known problem. I've had to do that many times with model designs.

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RE: Taylorcraft crash - 7/4/2012 9:51 PM   
comanche260c


 

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From: manorville, NY, USA
Status: offline 		 i didnt know it was a defect untill after it crashed and examined the design,and saw the poor gripping area that was to small

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RE: Taylorcraft crash - 7/4/2012 10:25 PM   
WhiteRook



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Status: offline 		you have to build in some redundance , if you have specific areas that are stressed.

sort of like the chinese firewalls on some ARF Planes, not strong enough.

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RE: Taylorcraft crash - 7/4/2012 10:26 PM   
comanche260c


 

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Status: offline 		yeah tellthe manafacture that, I agree

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RE: Taylorcraft crash - 7/4/2012 10:28 PM   
chris923


 

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Status: online 		No Chance, you still need to go thru an arf for design problems. I haven't had an arf yet that was perfect. Some come close............... you still need to check.

Sorry for your loss.

Chris923

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RE: Taylorcraft crash - 7/4/2012 10:31 PM  1 votes
comanche260c


 

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From: manorville, NY, USA
Status: offline 		IT WASNT A ARF   it was a bind and fly????  BNF  already built by them

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RE: Taylorcraft crash - 7/4/2012 10:34 PM   
chris923


 

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Status: online 		Sorry... PNP, BNF, ARF, ARC, but you still need to go thru them.

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RE: Taylorcraft crash - 7/4/2012 10:41 PM  1 votes
comanche260c


 

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Status: offline 		so you are telling me i have to check all there designs. And I have to eat it because they hire  poopy designers that  dont  have a brain that functions well ???

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RE: Taylorcraft crash - 7/4/2012 10:43 PM  1 votes
chris923


 

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Status: online 		Sorry to say, but, Yes... It doesn't matter where it comes from. Some are better on quality controll than others. Some are just poor designs. Horizen anf Top Flite are usally the best, but...

Chris923

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RE: Taylorcraft crash - 7/4/2012 11:00 PM   
comanche260c


 

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Status: offline 		ok go buy a new tv bring it home  and take it apart to see if its designed right before you watch it. IM learning  now

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RE: Taylorcraft crash - 7/4/2012 11:01 PM   
kwm1953


 

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Status: offline 		Send Horizon an e-mail and see what they say, cost nothing to do and you will get an answer from them.

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RE: Taylorcraft crash - 7/4/2012 11:21 PM   
a70eliminator


 

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Status: offline 		Camanche it's really going to be hard to convince anyone that it was the mfg fault your plane crashed, we know the wing bolt stripped the question is why? How much torque did you put on tha nylon bolt? There will be more mishaps if this is a design error so maybe it would be worth at least making the phone call or writing a letter, you just never know, the co. may just roll over for you.


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RE: Taylorcraft crash - 7/4/2012 11:45 PM   
tevans55


 

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Status: online 		I am guessing by looking at the manual that the Taylorcraft has the same setup as the 1/4 scale Cub. The blind nut in the wing of my Cub is more than sufficient (assuming it is the same) if not over torqued during installation. It only needs to be snug. On my Cub I noticed that neither of these blind nuts were pulled in flush in the rib so I removed both and pulled them in tight and epoxied them in place. Your failure in flight may have been one of the blind nuts coming loose from the rib but you would have probably noticed that during assembly at the field. After the crash was your blind nut still fastened to the rib?

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RE: Taylorcraft crash - 7/5/2012 12:43 AM   
av8tor1977



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Status: offline 		It never hurts to try. Take pictures and ask nicely.

I once crashed a nice Christen Eagle due to engine stoppage. I had soaked the fuel stopper in gasoline for 24 hours, and it was fine so I used it. The test flight on the plane, and several other flights that day went great. Then two weeks later I flew it, and the engine wasn't performing correctly. Finally, on short final almost coming over a concrete wall, the engine quit and I smacked the concrete wall head on. Not much left of the plane. When I took it apart I found the fuel tank stopper partially disintegrated and pieces of the rubber in the tank and in the carb.

I figured "it never hurts to try", so I notified NitroPlanes, from whom I had purchased the plane. They didn't have the same plane in stock, but gave me the choice of any other plane of equal value I wanted, with shipping...... free!! I was impressed and d a m n glad I had taken the time to give it a try.

AV8TOR

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RE: Taylorcraft crash - 7/5/2012 12:54 AM   
wesaysoracing


 

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From: South Bend, AR, USA
Status: offline 		i had a servo tray come loose on an ultra stick 120 , called horizon and told them what happened , and they sent me a new one, so it is worth a shot ,all they can say is yes or no

< Message edited by wesaysoracing -- 7/5/2012 6:15 PM >

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RE: Taylorcraft crash - 7/5/2012 1:12 AM   
comanche260c


 

Posts: 131
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From: manorville, NY, USA
Status: offline 		The blind nut didnt come loose it was in p[ace in the wing  and no i just snugged the bolt making sure I didnt over tighten it. This plane use to have a one piece wing and i am not sure if tthis design has been around long. Like someone said in a high stressed area there should be some redundancy in that area. In my mind the nut that is gripping the nylon bolt is so narrow and only allowing maybe  5 teeth to bite the bolt, this should of been a MUCH larger area to grab the bolt and this would of held in place. THAT ALONE IS MY ARGUMENT  never lift 5000 lbs with a 5000 lb chain or it may break,use a 10,000 lb chain.

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RE: Taylorcraft crash - 7/5/2012 2:07 AM  1 votes
SCALECRAFT



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From: MONTEBELLO, CA, USA
Status: offline 		Sorry but................

BNF is an ARF. ARF continues to prove it means Almost Ready to Fail.

Inspect, use your knowledge to remove the weak links. Fly.

Steve

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RE: Taylorcraft crash - 7/5/2012 2:15 AM   
Tx_RcFlyer



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I believe the wing tube is the main load bearing component here, as it is with the big cub which I own. I also owned one of the first generation Tcrafts way back when and the wing struts were functional.   I believe you would have seen some erratic flying characteristics as the bolt began to back off or fell out completely befoe that wing seperated if this thing was put together correctly.  Personally from your description, I wonder if the wing tube was installed at all or if it might have even been fatigued and failed some how since this happend so quickly.  Especially given the fact there are struts attaching the wing to the fuselage.  Like others said, I would take pictures, even call customer service and talk to them directly and see what they say.   



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RE: Taylorcraft crash - 7/5/2012 2:34 AM  1 votes
comanche260c


 

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From: manorville, NY, USA
Status: offline 		the wing didnt seperate I think the bolt backed out allowing the wing to move away from thr fusalage there fore allowing the wing to change angle of attack,  The struts held the wing in  place but the angle of attack coultd change from positive to negative as the wing rolled on the wing supporting tube causing eratic flying.the bolt was put in snug but it can be gripped once  screwed in wing and  pulled out of wing bolt..ITS A POOR WEAK BOLT MADE OF CHEAP PLASTIC that the teeth  give  way

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RE: Taylorcraft crash - 7/5/2012 2:39 AM  1 votes
flyallday


 

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I think a BNF of that size is a bad idea as it gives some who do not have the understanding or know how to correct or maintain an aircraft a false sense of security (not directed at you comanche).  At least with an ARF, you have to put the main sections together and will make the appropriate and often necessary adjustments.  H9 makes very good planes in my opinion, but from my experience, you have to add glue (a lot) to fortify some possible weak areas.   I am not a fan of nylon bolts and would give HH a call.  They have been nothing but a pleasure to deal with for me.
 
Harry 

And sorry for your lost plane, that is (was) a beauty

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RE: Taylorcraft crash - 7/5/2012 2:44 AM   
llindsey1965


 

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From: AugustaGA, USA
Status: offline 		my wingtube is tight on my planes and my wing bolts are 1/2 inch longer after the thread starts allowing ample grip on the wing , the wing should not have seperated so easy   , my wing bolts are plastic or maybe nylon anyway they are super tough 

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