belem
Squadron leader
Posts: 210
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Post by belem on Apr 13, 2009 6:44:41 GMT 1
Well, I knew it was coming, just didn't know it would be in front of a crowd. Had some family in town for the holiday and my brother wanted to see my cub. We went out to a golf course after dinner that was not my normal spot and paid the price. It was a fun place to fly but a bit narrow and when I missed a landing I tried to abort and caught a wing tip. Summersaulted it a few times and lost the tail. Headed out tomorrow to get some CA.  |
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Post by patmatgal on Apr 13, 2009 19:34:41 GMT 1
Famous place for a break, When you glue it just be careful of the screws that hold the tail feathers on. Might want to think about adding a 7 inch strip of packing tape along each side, statring at the back. Run it so the top edge of the tape is even eith the crease in the foam, fold it under the fuse and poke 2 holes in it to access the tail feather screws if needed. Makes that weak section rock solid.
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belem
Squadron leader
Posts: 210
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Post by belem on Apr 13, 2009 19:46:50 GMT 1
Thanks, will do that. Also thinking about running something thru the foam as well to strengthen it. Looks like some folks are using bamboo skewers but I might see if they have some CF rods when I'm at the shop today.
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belem
Squadron leader
Posts: 210
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Post by belem on Apr 14, 2009 8:05:45 GMT 1
Well, my first repair has been made. Added some bigger wheels and a new prop while I was at it. Used some CF tubes to reinforce the body.  |
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Post by ginginho on Apr 14, 2009 10:04:21 GMT 1
Looks as good as new!  |
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Post by patmatgal on Apr 14, 2009 17:28:32 GMT 1
Lookin' good! Glad you got it all back together, bigger wheels will help a lot (and look nice too).
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belem
Squadron leader
Posts: 210
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Post by belem on Apr 14, 2009 18:55:49 GMT 1
Yeah, excited to take it out again.....but unfortunately the wind will be howling until Friday at the earliest.
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Post by alexinflight on Apr 14, 2009 23:29:17 GMT 1
Done mine JUST like that! 3 toothpicks, 5 min epoxy, cover with heavy packing tape= Better than new!
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belem
Squadron leader
Posts: 210
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Post by belem on Apr 17, 2009 5:23:00 GMT 1
Well, I took her up again today. Flew fine other than the trim is off. It looks good on the ground but climbed out of control until I had trim adjusted to max position. Could this be due to new wheels? New prop? Was also turning left even with full trim. Think I'll take the tail section off and make sure it's seated right.
Did crash again when my son got hurt in the playground. Tried to land in a hurry and overshot my runway. Knocked the battery compartment loose and dinged up the new prop. Do I need to replace them every time they're dinged up or only when they break?
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Post by ginginho on Apr 17, 2009 9:47:00 GMT 1
With regards to the turning left, before tearing it all apart again, check the distance from the tail to each wing end. A tiny angle at the fuse (i.e wing not at 90 degrees) will create quite a difference in this measurement which will cause your plane to pull to one side.
The climbing may be due to having a bit more weight in the tail (glue), if it flys ok once trimmed, I'd suggest just adjusting the clevis so you have your trim centre(er)ed and leave it. If it's a bit too "floaty" add a bit of weight to the nose and give that a try. Remember that at full throttle and stick central, it should climb anyway.
Finally the prop question. It very much depends on how much damage it has sustained. If its got a chunk missing or got bent a fair bit, then probably best to change it. If it doesn't look too bad, run it up to full throttle on the ground (get someone to hold the plane or stand with your feet apart so the prop is rotating between them, and the wing starts to push on the back of your ankles) and see if it a) pulls ok b) doesn't shake the plane excessively. If it passes these, then it should be ok to use again.
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Post by Ellis on Apr 17, 2009 17:04:36 GMT 1
I'd like to add one more thing. Check the servos! The gears are extremely fragile and a crash or just moving the control surfaces by hand (a big no no) can easily damage them. Make sure they move the same distance in each direction smoothly.I can be a bit difficult to tell when a servo is damaged, since often they seem to move fine until under load. Trade them with known good ones if you can.
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belem
Squadron leader
Posts: 210
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Post by belem on Apr 17, 2009 17:44:11 GMT 1
Thanks all, will check both.
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Post by cvrcmember on Jul 15, 2009 19:55:34 GMT 1
Yeah, the same thing happened to my cub a long time ago, I let my dad fly (bad idea) and he takes off and goes over a house and stalls it! The cub came down vertically and the tail broke off the same way yours did. |
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jons35
Flying officer
Posts: 14
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Post by jons35 on Aug 1, 2009 17:46:27 GMT 1
Hey this is my first post on this site. But I did have a major crash a few days go. I was flying in some moderate wind (bad idea) and the wind blew my cub into a nose dive/spiral type deal. It was only about 20-30 feet of the ground not much time to react. The whol nose cone cracked the things in the box that move the control surfaces ( servos I think) anyway they ripped out. The plastic piece that connect the servo to the pushrod snapped in half. When I thought I'd fixed everything up nothing works. Whats wrong?
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belem
Squadron leader
Posts: 210
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Post by belem on Aug 2, 2009 18:48:01 GMT 1
"nothing works" - does this mean you're getting no power? Servo's don't twitch when you connect the battery?
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