RC-Monster Forums - View Single Post - Anyone have experience with cheap 12s ESCs?

BrianG · 01.24.2011, 01:09 PM

Also keep in mind that most aircraft ESCs need to see a different throttle signal (1ms neutral-2ms WOT) vs cars (1ms brake/reverse-1.5ms neutral-2ms WOT). If the ESC/radio cannot be set together for proper operation using a pistol transmitter, you either need a pistix adapter, or just use an aircraft radio. Back when I was using a HV110 on my old GTP and needed to use a pistix adapter with my Spektrum DX3r. Here is a link to the adapter if needed: http://www.offshoreelectrics.com/pro...rod=msw-pistix

Another issue, which Jahay spoke about, is the high current spikes that cars draw, but aircraft usually don't (except maybe Helis). Most air ESCs have constant and burst current ratings that were very close (basically, no headroom). The HV110 worked fine for me because CC tends to underrate their products, so I felt comfortable with using it in a car. But if I was to use a cheaper air ESC, I would definitely get one that had a constant current rating that was at least as high as the max burst I would expect to draw. Basically, adding in my own headroom.

If I was to use that Turnigy 120A ESC, I would use 12s and gear moderately to help keep those spikes down. And if your radio supports it, maybe some exponential curve on the throttle to further help.

	(#6)
BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	01.24.2011, 01:09 PM Also keep in mind that most aircraft ESCs need to see a different throttle signal (1ms neutral-2ms WOT) vs cars (1ms brake/reverse-1.5ms neutral-2ms WOT). If the ESC/radio cannot be set together for proper operation using a pistol transmitter, you either need a pistix adapter, or just use an aircraft radio. Back when I was using a HV110 on my old GTP and needed to use a pistix adapter with my Spektrum DX3r. Here is a link to the adapter if needed: http://www.offshoreelectrics.com/pro...rod=msw-pistix Another issue, which Jahay spoke about, is the high current spikes that cars draw, but aircraft usually don't (except maybe Helis). Most air ESCs have constant and burst current ratings that were very close (basically, no headroom). The HV110 worked fine for me because CC tends to underrate their products, so I felt comfortable with using it in a car. But if I was to use a cheaper air ESC, I would definitely get one that had a constant current rating that was at least as high as the max burst I would expect to draw. Basically, adding in my own headroom. If I was to use that Turnigy 120A ESC, I would use 12s and gear moderately to help keep those spikes down. And if your radio supports it, maybe some exponential curve on the throttle to further help.