rchaas Senior Heliman Location: Tulsa, OK
| Okay, here is the update!
Nice day, 45 degrees, light southwest wind. The headspeed at hover in governor mode was 1890 at 80% throttle curve (I have subsequently learned that my ESC will drop the current in a hover 6% in governor mode at 90%, so i'll have to try that). The power was more than ample, and the heli was quiet and smoooootttthhhhh! I might like to try a 12 tooth pinion, to lower the headpeed a bit further, but it seemed to perform very nicely where it was. I think 14 tooth pinion will be too much headspeed, but i might try it just for grins.
I flew circuits, asynch loops forwards and backwards, big outside/inside loops, funnels (inside and outside) and some pirouetting tumbles, without any problems! The roll cyclic needs to be bumped up a bit, but otherwise, the heli felt very "locked in" for such a little guy. The headspeed varied about 50 to 100 rpm during aggressive 3d. I might take a bit of pitch out, to avoid those larger drops in headspeed that we saw when i really dug into the collective.
After 5 min, a motor temp check revealed a temp of 105 degrees (heatsink on, no fan installed as yet), and the ESC and battery were 20 degrees cooler. Successive temp measurements revealed similar temps throughout the flight.
I flew a total of 17.5 min and the headspeed started dropping (that was moderately aggressive aerobatic flight throughout). A recharge of the battery (8s2p) put 3.8 amps back in, so i think that was an appropriate flight time (wouldn't want to discharge the battery any further than that).
All i can say is that this is one very aerobatic, smooth and powerful little heli. I am very happy with it. I then flew my Vigor CS (OS Cspec power) to compare. Of course, it has ballistic power, and the cyclic inputs were more crisp, but overall, I think i'll love flying my little Logo as much as any heli i've ever owned!
Robbie |