ORIGINAL: JAS

Having only been flying Jeti/Hacker Comp 90 ESC's since 05-06 (I think) I've always looked for something that was a direct replacement since they stopped making them. The Spin 99 is the closest to it, but even it isn't as easy to program as the old Comps. Since I'm now down to 2 Comps, it was time I started figuring something out. Over the holiday's I was able to do some flying with the new Futaba MC 9100A ESC. I must say, it's the closest to the Comp as far as performance and ease of programming (with the recommended programmer). The only real difference is the throttle transition seems smoother with the Futaba than the Comp.

My plane set-up is as follows:

Plane – 2M Osiris (prototype)
Motor – Fury 60/67-230
Prop – APC 21x13W
Batt – ThunderPower 5000 45C (my 20C are 3 years old and a bit weak at the end of flights)

ESC Settings:

Batt type - Lipo
Lipo cut - 3V
Cut type – Slow
Motor Direction - Normal
Timing – 24 degrees
Acceleration – Normal
Start Power - Normal
Brake % - 90%
Brake – On
Poles – 28
Gear Ratio – 1.0 : 1

Temps the days I flew were low to mid 70’s and the ESC was 123F when I took the canopy off to check it. This is with the ESC mounted on top of my batteries with not much air flowing to it. I will need to find a better mounting method than just that lol. I'll probably drop it in the chin for direct airflow to it.