RCU Forums - is a 75 amp speed control too big for 450 heli?

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- - is a 75 amp speed control too big for 450 heli? (https://www.rcuniverse.com/forum/brushed-brushless-motors-speed-controls-gear-drives-123/11215272-75-amp-speed-control-too-big-450-heli.html)

rcpilot1982

09-02-2012 10:11 PM

is a 75 amp speed control too big for 450 heli?

I just bought my first high end sc for a mini titan flybarless heli.I chose an Castle creations ice 50 but my motor is a turnegy heli drive sk3 competition series, 3 align ds415m digital servos and the fbl unit.Now the info on the motor says it draws 50 amps max.Now some guys im talking too say that could push this $86 esc.I spent that kind of money for bullet proof.Is it insane to slap the ice 75 on the heli instead??? i have the store holding the order until i get a pro oppinion.Thanks

Dr Kiwi

09-03-2012 06:21 AM

RE: is a 75 amp speed control too big for 450 heli?

Extra capacity is good.. certainly, if you really are going to draw 50A, then a 75A ESC is a far safer bet than a 50A one.

aeajr

09-19-2012 03:54 PM

RE: is a 75 amp speed control too big for 450 heli?

Too big as in too high amperage. No. Too big as in too heavy? Maybe.

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