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HomeAircraftHelicopterMain Discussion › Plastic parts in cold weather?
02-12-2006 05:49 PM  12 years agoPost 1
50feet

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Wilmington, Delaware

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Any one have failures from plastic becoming brittle in the cold? Yesterday my buddy and I went flying. It was about 30F. We both had our raptor 50s. He fired it up minute after getting out of the truck, and with no warm up he blasted it in to the air. He flew it for 3-4 minutes and thought he had a radio hit. Once he got it on the ground the head tilted. then it tipped and one blade hit the ground. The damage was one broken carbon blade the hub broke and the horn on the elevator servo. Nothing else was damaged. whe think it was the horn that broke.

could the cold make the plastic horns brittle? I was going flying today even though we got this last night...

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02-12-2006 05:52 PM  12 years agoPost 2
z11355

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New England

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welcome to flying in the cold.

getting brittle is EXACTLY what plastics do in the cold.

try playing tap frisbee in really cold weather, the d@mn thing
SHATTERS when hit.

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02-12-2006 06:23 PM  12 years agoPost 3
Yug

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UK. Herts

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Even at around freezing, the links do 2 things, they harden and contract, so there is more pressure on the links and due to the increased brittleness, there is a much greater chance of cracking.
If you're doing alot of cold flying, it's probably worth reaming out the links just a little, to help reduce loading.

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02-12-2006 06:24 PM  12 years agoPost 4
Rcer22

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Somewhere In The Adirondack Mountains

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Iv'e been out in 15 degree F weather and haven't had that happen. I would take the ship out of the truck and let it sit for about 20 minits before flying it. Unless of course it's in the back of a pick up. The bigest problem I had with the cold is the fuel in the lines was getting too thick and caused the engine to lean out. Maybe there was too high an oil content in the fuel. But that don't happen all the time. And it's also a good idea to let the engine warm up for a bit before you fly.

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02-12-2006 06:30 PM  12 years agoPost 5
u.k. sailor

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cambs uk

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i had the tail blade grip fail where the ball is fitted on my evo 50 furtunately it failed immediately as i lifted into the hover and sat it down with only the loss of the carbon blades, i have no doubt it was because of the cold weather on the day

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02-12-2006 06:37 PM  12 years agoPost 6
Rcer22

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I guess some people have trouble in the cold and some don't.

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02-12-2006 09:34 PM  12 years agoPost 7
Tday

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Needham, MA

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I'm with you Rcer22...flying in the cold is no big deal. I've taken hundreds of flights in cold weather without any problems at all whether mechanical or plastic parts. In fact, ships seem to do better. Since the air is denser (more O2 per cycle), the motors need to be richened up...which in this case means they run stronger. It's like a natural supercharger. Then the blades get more lift too. (Ever been to Las Vegas in the summer and had a flight delayed because it was so hot they couldn't generate enough lift for the load?..well, winter flying is the opposite.) We go out all winter and 15F is nice if you dress for it.

Tom

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02-12-2006 10:34 PM  12 years agoPost 8
u.k. sailor

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i'm glad you enjoy flying in the cold and it's advantages which can include a not too crowded flying site but the post was asking if others had issues with plastic on their machines as a result of the cold. i guess from that point of view as you say some have problems and others don't

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02-12-2006 11:01 PM  12 years agoPost 9
medivh25

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ozark ,mo

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Ive been flying a tank here and there most of the winter.
So far the only problems i have is the gyro will act differently when its real cold out. Have not had any parts fail. The only thing I hate is when my thumbs get so cold they jiggle makes my Helli do the chicken dance in the air Then I am forced 2 land and warm up

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02-12-2006 11:35 PM  12 years agoPost 10
Tday

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Needham, MA

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I guess I was saying I'd not had any problems in hundreds of flights with any part plastic or otherwise AND the motor and blades work better. I'll edit that sentence to say that, but it certainly seemed clear enough. And I'm not so sure I'd say some have problems and some don't because I've not seen anyone have a problem in the cold with their heli except tail belt tension and letting the gyro cool. So perhaps there was something else going on to cause the failures noted. I've had parts fail in warm weather and don't suggest it's because it's warm...same with cold weather. I just don't see any differences.

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02-12-2006 11:48 PM  12 years agoPost 11
Rcer22

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Well that's not really true. I have had some problems in the cold. At one point my tail wouldn't work right because the oil on the output shaft froze and the slider wouldn't move fast enough to compensate. A shot of WD 40 fixed it right up and I was back in the frigid air. And there was the fuel getting too thick. It was really cold that day. I also learned to keep an eye on the battery. As for cold hands ever try a radio glove? Mine gets too warm I have to keep it open some to let in the cool air.

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02-12-2006 11:55 PM  12 years agoPost 12
Tday

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Needham, MA

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Yeah, but UK sailor was getting prickly about the *plastic* parts *failing* per the thread. That said, I've not seen fuel get thick, that must have been very cold. I guess it depends upon what one means by cold. I'm out down to 15F but most winter flying is in the 20's or above. There are things to manage, as you note, but I'd hate for folks to avoid flying in colder weather fearing parts fail.

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02-13-2006 12:20 AM  12 years agoPost 13
50feet

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Wilmington, Delaware

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Well I had a failure....
The pin came out of this part. I had it inverted and it felt wrong.. I put it down to see this part hanging an banged up. Its not broke and those pins took some force to get in and this heli is about 6 or seven tanks old.

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02-13-2006 12:27 AM  12 years agoPost 14
Tday

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Needham, MA

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I've seen those fail in warm weather more often than cold. It's a common problem when the pins aren't fastened in with an e-clip. Were the others because of the warm weather? I just don't see that as a cold weather problem, rather a problem you had in the cold weather.

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02-13-2006 12:28 AM  12 years agoPost 15
50feet

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Wilmington, Delaware

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i'm glad you enjoy flying in the cold and it's advantages which can include a not too crow
We drove past 15 cars that had driven off the road going to the field

My buddy has a big 4 wheel drive that got us back down the road to the field and we were the only gys there for 2-3 hours then another bud came back with a plane on skies and a glider and forgot the batteries to both an had to go back home.

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02-13-2006 12:32 AM  12 years agoPost 16
50feet

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Wilmington, Delaware

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I just don't see that as a cold weather problem, rather a problem you had in the cold weather.
I just don't see that as a cold weather problem, rather a problem you had in the cold weather.

maybe true.... Im just glad i got it back down on the 5ft clearing we made safely

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02-13-2006 12:39 AM  12 years agoPost 17
Yug

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UK. Herts

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50feet - glad you reached terra firma safely. Interesting how the pin came out as plastic contracts when cold. Was it glued in ?
I presume the link wasn't split.

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02-13-2006 12:41 AM  12 years agoPost 18
Tday

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Needham, MA

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Fair enough 50 feet, glad you made it down, and I hope you keep going out all winter, you'll be glad you did! I guess I'm on the soap box because it's a great time to fly. If your heli was at risk of falling apart/breaking each time you went out, well...then it wouldn't make sense. That's just not what I've seen at all, though, and I'll bet I fly more in the winter than almost anyone in MA. And if anyone takes exception to that, I'd really like to meet them so that we can go out and fly...they're my kind of heli pilots.

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02-13-2006 12:47 AM  12 years agoPost 19
dragonlord

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luton uk

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they often come out i had one fall out when i was the other side of the feild and a few hundred feet up neally never got the heli back there was a strong wind and it kept blowing in to the wind with out link managed to get it back to me and land in the end to find pin missing

dump em and get a metal on with e clips


them pins that just push in on the tail can do it as well.

but the ones in the arms under the swash plate are acident waiting to happen.

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02-13-2006 01:08 AM  12 years agoPost 20
50feet

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Wilmington, Delaware

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them pins that just push in on the tail can do it as well.
I did not have them glued... I just C.A'ed them But I forgot about the tail pins.

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HomeAircraftHelicopterMain Discussion › Plastic parts in cold weather?
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