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Pt40 crashed today-no clue why

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Pt40 crashed today-no clue why

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Old 11-24-2003 | 07:53 PM
  #26  
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From: Troy, MI
Default RE: Pt40 crashed today-no clue why

Did you check your antennae? One time my instructor and I went up... we got it out over the field, and I lost control for a second. I almost lost it. Then we saw that we had forgotten to put the antennae up[sm=drowning.gif][sm=redface.gif]. We ended up being fine, after we put the antennae up
Old 11-25-2003 | 07:11 AM
  #27  
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Default RE: Pt40 crashed today-no clue why

Saw your post in Crash pictures and discussions.

A lot more damage to the engine than the picture suggests.

I guess that your assessment of the engine being ruined pretty fair.

That is a real shame as well.

gus
Old 11-25-2003 | 11:54 PM
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Default RE: Pt40 crashed today-no clue why

Don't feel bad dude, I'm pretty much in the same boat except my wings broke. I am building a new plane for the spring. It all works out. Much rather it happen now than say, May.


Wings
Old 11-26-2003 | 12:14 AM
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Default RE: Pt40 crashed today-no clue why

Did you perform a range check before flying....didnt see that in any posts...but i didnt read all of them...just curious.

BW
Old 11-26-2003 | 09:03 AM
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Default RE: Pt40 crashed today-no clue why

DEFINITELY...you need to put at least half your bands in a criss-crossed direction. On my trainer, I use 18 to 20 bands with 10 or 12 being crossed
you put 18 to 20 rubber bands on your airplane??? why?? get a box of #64 rubber bands and you only need 8 max... and i do stupid things with my airplanes and never ever had the wing move on me. what size bands are YOU useing???????? holy cow[X(]
Old 11-26-2003 | 04:33 PM
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Default RE: Pt40 crashed today-no clue why

Yeah the spinner nut had a deep gouge in it, which means it hit a rock. That probably explains all the bent parts. We didn't do a range check that day. I don't think I saw anyone do a range check that day. It is something I will do next time. I think everyone misunderstood what I meant by my rubber band placement. I have an ultra stick that I'm going to start on when I get my engine. I may just do this one alone. If it crashes, I want to be the one doing the crashing.
ORIGINAL: gus

Saw your post in Crash pictures and discussions.

A lot more damage to the engine than the picture suggests.

I guess that your assessment of the engine being ruined pretty fair.

That is a real shame as well.

gus
Old 11-26-2003 | 05:33 PM
  #32  
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Default RE: Pt40 crashed today-no clue why

ZETOR< make sure that your antenna is screwed in secure on th xmitter. A 6 pound bird should have 10 fresh rubberbands to hold the wing. Binding linkages can stall a servo, which can overload the on board battery. Radio interference is easy to blame, but is seldom the case. You could send your radio system back, and have the factory test it on a vibration jig, that is the only way to pin point a loose connection sometimes. Lastly, if you pick out a lighter plane next time, like a profile job that weighs 4 pounds, you will have less kinetic energy working against you in a hard landing, and an easier plane to fly and land, plus you will get way more enjoyment out of it. Just set it up with conservative control throws and a forward CG and it will handle like a *****cat!
Old 11-26-2003 | 09:14 PM
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Default RE: Pt40 crashed today-no clue why

8 rubber bands is NOT enough Even the kit manufaturer will say 2 bands per pound of wieght[5lbs-10 bands] and this is minimum/ You will never know how many times your wing parts from the fus momentarily as you fly. and this is a good explanation for some of yhe wierd things that happen during flight that you can't explaine.
Old 11-26-2003 | 10:00 PM
  #34  
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Default RE: Pt40 crashed today-no clue why

Hehe nice Description and Avatar, GraupnerFan.

To DBCherry : Scuse me, but do u happen to know if anyone's flying on Channel 45 or 72.690??

Thanx!!!
Old 11-27-2003 | 04:15 AM
  #35  
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Default RE: Pt40 crashed today-no clue why

and this is a good explanation for some of yhe wierd things that happen during flight that you can't explaine
i have never had anything weird happen while i was flying.. other than the occasional dumb thumbs.. and if you use #64 rubber bands.. the small dowels you have do not permit 10 to 20 rubber bands .. and if you go front to back and stretch them up and then lay them back, 8 WILL be enough with that size rubber band. i tried to see how many of them i could get on.. and that was the most.. anymore, and the dowels start bending.. and i really dont want to have them break inflight... then your trying to fly a fuselage and they dont fly well without the wing...

Hehe nice Description and Avatar, GraupnerFan.
LOL thanks.. i love that picture! i still chuckle when i see it!
Old 11-27-2003 | 05:06 AM
  #36  
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Default RE: Pt40 crashed today-no clue why

I have to agree with Graupner Fan - I do not see how you can get 18 of the #64 bands on to the dowels! Personally I fly a Hobbico Superstar 40 and my instructor told me 6-8 bands was enough. I generally put two bands on each side of the fuse (that's 4 bands) going straight up and then have another pair of bands going in each diagonal direction (thats another 4 bands). The first 4 have the most leverage and hold the wing down. The second set of 4 - the diagonal ones - have less leverage but serve to stop the first 4 bands slipping off the dowels. By the time I have done all of this there is hardly ANY room to add any more bands.

Anyway, I'm really sorry to hear about the crash I think you have a great attitude in that your main concern is that you want to learn something form the incident so as not to repeat the mistake. Personally, I would be wallowing in a pool of self pity and would be a miserable person to be around. I could learn a thing or two from your attitude.

Photoniq
Old 11-30-2003 | 08:43 PM
  #37  
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Default RE: Pt40 crashed today-no clue why

Far be it from me to argue with you guys, but yes, 16-18 #64's DO fit on the dowels (I have a Hobbistar 60). All I know is that if the wings are not tight to the fuse, add more bands...especially if you have wind gusts of 13-18 mph. Remember, I'm near Chicago...The Windy City...didn't get it's nick just from the politicians you know.

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