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450 Class Electric Helicopters 450 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 11-10-2009, 08:51 AM   #1
smontesdeoca
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Default Time between flights?

Hey, just wanted to know everyone's opinion if it's safe to swap lipo and take off? I usually wait some 10 mins, but while the battery of my nitro is recharging, I was wondering if I can just land, swap lipo and take off.
At my local field, there are still a lot of planks, only a few fly helis, so it would also be good to fly 2 or 3 lipos.
My 450 is all stock, SE V2, ah, the motor has a heat dissipator if it might help.
So, any opinions, welcome.
Thanks,
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Old 11-10-2009, 11:26 AM   #2
GaFlyer
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Fly as many batteries as you have as long as you keep check on temp of motor!
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Old 11-10-2009, 02:12 PM   #3
ken22golf
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I just swap lipos and take off again, but I'm using a neu motor and external BEC so my stuff stays pretty cool anyway. The motor will heat up very quickly, so letting it cool between flights is kind of a waste of time. It'll get right back up to hot right after takeoff anyway...As long as your stuff isn't on the verge of overheating, you don't need to wait IMO
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Old 11-10-2009, 04:44 PM   #4
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I just change the battery and go. Just check to make sure your equipment is not too hot.
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Old 11-10-2009, 04:46 PM   #5
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Oh, and make sure to reset the timer on your transmitter. I've lost a lipo due to that...
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Old 11-11-2009, 11:13 AM   #6
smontesdeoca
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Hey, thanks to all for their replies.
I know the temps for a nitro, but, for the stock motor on my SEV2, what would be a correct temp?
thanks,
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Old 11-11-2009, 12:29 PM   #7
ken22golf
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When I flew a 430XL I think I got temps around 49ºC.

I don't think these electric motors start getting damaged until around 95ºC, but I would start looking for causes of heat if I was getting temp at 60ºC or higher (like too tight of a pinion mesh, etc.).
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Old 11-11-2009, 12:38 PM   #8
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Quote:
Originally Posted by ken22golf View Post
When I flew a 430XL I think I got temps around 49ºC..
Sounds about right, I also measured my XL in and around 50ºC

and yes I read the manufactures recommendation and they state anything past 200ºF (93.33ºC) so I gives it a +1
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Old 11-12-2009, 07:11 AM   #9
megeant
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nice info thanks
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Old 11-12-2009, 07:36 AM   #10
frogs84ss
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i usually wait about 30 minutes between flights. thats how long it takes for me o replace the main shaft ,fly bar , blades , and tail boom. lol my sport motor and speed control don't even get hot after about 3 minutes of just hovering arond .
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