Russ McC
04-23-2004, 12:51 AM
I called Chris today at Min Air and asked him how the speed controller should be set; if it tells you what to do in the book Rob and I could not find it? Chris said,
1. The controller is set correctly out of the box. (Normal Mode)
2. Don’t change any thing.
3. You are not using the governor mode in the controller; the governor (heli mode) does not work as well as normal mode.
4. Do not run the throttle curve below 85% for flying.
5. Normal throttle curve is for spool up, starting at 0% with a shallow curve to 80%. Idle up is 100% bottom, 85% mid, 100% top.
My set up is. Normal ramps shallow to 85%, idle 1 is 85% straight line all the way across, idle 2 is 100% bottom, 85% mid, 100% top. I tacked the head speed on the ground at mid stick idle 2 with the tack on my 9Z (not recommended, be careful) I did this twice the first time I got 1860rpm the second time I got 1960rpm.
The performance is still improving as the drive train is getting worn in, 5 flights. At this point I would say it performs about like a YS 80 using an SB15 and 30% fuel. It is holding close to this performance level right through 10 minutes with a short break at 5 minutes to check temps. I can hold my fingers on the motor indefinitely at any time through out the flight, maybe about 120F degrees. The speed controller runs cool, can’t tell there is any heat. The batteries run just warm. My last flight was 11 minutes of 3D and the packs took 5.200 amp hours.
Conditions where, 60F degrees at sea level, 10 degrees of pitch, SAB 680s with NHP 105 on the tail, Thunder power 7600 packs, no canopy, smooth to mildly aggressive 3D with good collective/cyclic management to prevent over loading the system. I like it very much so far :D
1. The controller is set correctly out of the box. (Normal Mode)
2. Don’t change any thing.
3. You are not using the governor mode in the controller; the governor (heli mode) does not work as well as normal mode.
4. Do not run the throttle curve below 85% for flying.
5. Normal throttle curve is for spool up, starting at 0% with a shallow curve to 80%. Idle up is 100% bottom, 85% mid, 100% top.
My set up is. Normal ramps shallow to 85%, idle 1 is 85% straight line all the way across, idle 2 is 100% bottom, 85% mid, 100% top. I tacked the head speed on the ground at mid stick idle 2 with the tack on my 9Z (not recommended, be careful) I did this twice the first time I got 1860rpm the second time I got 1960rpm.
The performance is still improving as the drive train is getting worn in, 5 flights. At this point I would say it performs about like a YS 80 using an SB15 and 30% fuel. It is holding close to this performance level right through 10 minutes with a short break at 5 minutes to check temps. I can hold my fingers on the motor indefinitely at any time through out the flight, maybe about 120F degrees. The speed controller runs cool, can’t tell there is any heat. The batteries run just warm. My last flight was 11 minutes of 3D and the packs took 5.200 amp hours.
Conditions where, 60F degrees at sea level, 10 degrees of pitch, SAB 680s with NHP 105 on the tail, Thunder power 7600 packs, no canopy, smooth to mildly aggressive 3D with good collective/cyclic management to prevent over loading the system. I like it very much so far :D