STM C182 ESC?

[c172ae]

Hi!

Yesterday me and a friend went out to do some night flying at the local soccer field. we were flying almost identical airplanes (STM c182's). while we were flying around, we suddemly heard a lot "beep", the lights on his plane went out and it crashed into the ground and it rolled itself into a ball.

we have tested all the electronics that was in his plane, and everything except the ESC worked flawless.

what I am therefore wondering about is if anyone know the amp rating on this ESC? he was running an 8.5x5 prop, the planes came with a 9x5 and I am now running a 9x4.7. I'm therefore a little bit sceptical about if it can happen to my plane too...

PS! I am running the plane without the cowling so the air from the propeller hits the ESC and cools it down. should I continue with this?

Thanks!

Adrian

 

[eagle4]

Welcome to the forum mate.

I'm not familiar with that esc, does it have its amps written on it? Did it come with a ready to fly plane? If it did you might find in the manual for your plane it will tell you.

What sized motor are you using, what battery too? This way we can try to help you work out your amp draw that your setup us using.

 

[c172ae]

Welcome to the forum mate.

I'm not familiar with that esc, does it have its amps written on it? Did it come with a ready to fly plane? If it did you might find in the manual for your plane it will tell you.

What sized motor are you using, what battery too? This way we can try to help you work out your amp draw that your setup us using.

it has nothing written on it except the production date, and yes it did come as RTF (http://elefun.no/p/prod.aspx?v=16423). I have looked in the manual, but it doesn't state anything other than "brushless ESC speed controller".

the motor is a 1400kv outrunner. I don't really know anything else about it. the batteries I use are the one that came with the plane (1800 mah 3 cell 15c), a 2200 mah 3 cell 25c (http://elefun.no/p/prod.aspx?v=22639) and a 2650 mah 3 cell 20/30c (http://elefun.no/p/prod.aspx?v=22640). the battery my friend used at the time of the crash was a 3300 mah 3 cell 20C (http://elefun.no/p/prod.aspx?v=25981).

Edit: I opened up the motor and measured the stator. it's 2913...

hope this info helps at least a little bit...

Adrian

 

[c172ae]

guess what? mine died today...

I was just out on my lawn doing some taxi tests (converted it to taildragger about 2 moths ago, wanted to see how it handled in the snow with skis on) and it just suddenly died. I tested the plane with another ESC in it, and it worked perfectly. Ordered a 40A just to be on the safe side...

what I have some trouble thinking about is:

1) we have flown these planes for 1.5 years now, and the ESC's has been just fine. then both of them die in 3 days...
2) I had about 1/3 throttle when the ESC failed - it should have been able to manage that!
3) how lucky I was to have the plane on the ground when it happened.

So guys, if you ever buy a STM 182, replace the ESC before you fly!

Adrian