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Old Jan 06, 2010, 01:44 AM
Why you swing so hard?
jsnaphook's Avatar
Lake Tahoe
Joined Jun 2006
1,271 Posts
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Originally Posted by la528it View Post
epc2: the gearbox and motor fit... PERFECTLY! The cc80 is longer than the ice 100 lite, so I went with the former. The caps go to about 5mm in front of the wing saddle, the lipo can sneak a tiny bit ahead of the saddle. Because the ice 100 is so thin, I stuff both a 450mah 2s pack and cc bec up there for rx supply, but I worry that rx lipo and bec are in potentially the hottest part of the plane.... what do y'all think?
If your ICE melts, can or will it take out your rx power supply being in close proximity?

Juan
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Old Jan 06, 2010, 03:25 PM
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United States, CA, Los Angeles
Joined Aug 2004
3,087 Posts
Richard,

I had a motor mount let go once, and the motor / esc / receiver pack where all up front. :-( The receiver batt twisted around and connection was lost.

So, if this is your only option for fit, prefilght that nose regularly and check the temps real good initially to ensure nothing is going to cook. And maybe consider wrapping the crap out of the esc with kapton to minimize fire damage in the unlikely event of that scenario.

See ya tomorrow!

Eric
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Old Jan 06, 2010, 03:57 PM
finger slicer
carpetbomb's Avatar
Southern CA.
Joined Mar 2009
475 Posts
Quote:
Originally Posted by epwierman View Post
Richard,

I had a motor mount let go once, and the motor / esc / receiver pack where all up front. :-( The receiver batt twisted around and connection was lost.

So, if this is your only option for fit, prefilght that nose regularly and check the temps real good initially to ensure nothing is going to cook. And maybe consider wrapping the crap out of the esc with kapton to minimize fire damage in the unlikely event of that scenario.

See ya tomorrow!

Eric

Remember to get lots of video for us drones that have to work for a living.

-
mike
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Old Jan 08, 2010, 10:30 AM
Needs to do 52 legs !!
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Verenigd Koninkrijk, Fareham
Joined Aug 2008
7,125 Posts
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Originally Posted by epwierman View Post
So, if this is your only option for fit, prefilght that nose regularly and check the temps real good initially to ensure nothing is going to cook. And maybe consider wrapping the crap out of the esc with kapton to minimize fire damage in the unlikely event of that scenario.
I'd say don't do it but if, then don't wrap the ESC to much as this will only give it less cooling and send it up in smoke guaranteed.

Better put a lot of layers of Kapton around that RX pack, use way overkill wires and tape those as well.
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Old Jan 14, 2010, 06:21 PM
200 mph club
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United States, AZ, Fort Mohave
Joined Mar 2005
869 Posts
Viper for sale in 'Aircraft - Sailplanes (FS/W)'
Sold!
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Last edited by r/cmark; Jan 15, 2010 at 08:36 AM. Reason: Sold!
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Old Jan 15, 2010, 03:03 AM
Speed King
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London Heathrow, Great Britain (UK)
Joined Feb 2003
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for sale already, thats a bit quick.
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Old Jan 15, 2010, 08:32 AM
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United States, WA, Redmond
Joined Dec 2007
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Originally Posted by MarkChinery View Post
for sale already, thats a bit quick.
so's the plane :P
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Old Jan 15, 2010, 08:51 AM
Cumulus Altimus
FASTBEN's Avatar
KELLER TEXAS
Joined Feb 2002
3,466 Posts
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Originally Posted by la528it View Post
so's the plane :P
lol.....
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Old Jan 28, 2010, 10:33 PM
Take off, eh
plainguy's Avatar
USA, CA, Long Beach
Joined Jan 2009
213 Posts
viper burnt power train

Flew my Viper for all of 30 seconds sounded great, cut some beautiful lines -until it shut down.

motor and or esc smell burnt.

Set up

Neu 1112 1Y motor
CC 80 phoenix ESC
430 mAh 2S lipo receiver pack with BEC
Hyperion 4S 45C Battery
4.1 x 4.1 prop.
fuse -no cooling / vent holes

can't be certain what happened until i take it all apart but in the meantime wanted to know if anyone has had a similar situation.

thanks,
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Old Jan 28, 2010, 11:48 PM
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United States, WA, Redmond
Joined Dec 2007
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Quote:
Originally Posted by plainguy View Post
Flew my Viper for all of 30 seconds sounded great, cut some beautiful lines -until it shut down.

motor and or esc smell burnt.

Set up

Neu 1112 1Y motor
CC 80 phoenix ESC
430 mAh 2S lipo receiver pack with BEC
Hyperion 4S 45C Battery
4.1 x 4.1 prop.
fuse -no cooling / vent holes

can't be certain what happened until i take it all apart but in the meantime wanted to know if anyone has had a similar situation.

thanks,

Raul did you program the esc? Was the battery hot when you landed? Was the esc hot? The motor?
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Old Jan 29, 2010, 12:24 AM
Take off, eh
plainguy's Avatar
USA, CA, Long Beach
Joined Jan 2009
213 Posts
yup. all programed and pretty. flew to trim yesterday on 3S everything hunky dori.
will remove motor & esc tomorrow for inspection and (hopeful) resolution.
thanks for caring...
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Old Jan 29, 2010, 12:25 AM
The Kid
Thekid3418's Avatar
Detroit, MI
Joined Dec 2007
2,585 Posts
900-1000 watts is borderline for an 1112 motor with no cooling. For instance, my motor (1112-2D) under testing conditions with no cooling air, got uncomfortably warm to the touch after 50sec at ~65amps. In the air, with lots of cooling, it never gets above ambient, but without cooling is another story.

I would suggest testing the kv of your motor to see if you over-heated it, and testing the ESC to make sure it still functions. If they both work, cut some small cooling holes and try again! That motor should handle your power level easily, but it needs a little help

Kid
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Old Jan 29, 2010, 08:13 PM
Take off, eh
plainguy's Avatar
USA, CA, Long Beach
Joined Jan 2009
213 Posts
thanks for the info kid.
took apart & found Neu motor yellow wire charred all the way into the motor. maybe problem caused by improper yellow wrap insulation causing arch (?)
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Old Jan 29, 2010, 10:36 PM
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USA, CA, El Dorado Hills
Joined Apr 2008
1,012 Posts
I had the same issue with a 1110-1Y. I was really surprised...but the motor was a complete loss. I got a lot of flights out of it, so figured I got my money's worth.
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Old Feb 02, 2010, 08:45 AM
Cumulus Altimus
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KELLER TEXAS
Joined Feb 2002
3,466 Posts
well little problem...after soldering the cc125 to the motor the length is about an inch to long and won't permit the battery to slip in,,,my battery came to wide to lay flat but can stand perfect....now the Question is how far can i cut the motor wire's back will it be solder-able.....the motor wire's are soldered to ESC directly i have removed the 3 motor wire's from esc and soldered direct to it..i need an 1" to make good.
ben
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