Kong Power or ACE Power

[tttfck]

kong power 11.1v 22oomah 25c on t-rex

http://www.youtube.com/watch?v=JNQCGYFu5Qc

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[IMK]

Yo hot dog bun. Sorry late reply. Yes PXL 460 and 30A HW. esc set to medium timing. After 4+ mins flight the batts, esc and motor mildly warm only. Can stick my fingers on it long time. No prob. At 4+ mins motor not showing any signs of 'weakness'. 13T pinion.

However, 4+ mins as John pointed out is kinda short time for fig 8s, some loops and rolls. I tried the 450TH on my MT, sli less power and getting abt an extra minute of flight time before weakness. I don't have a charger that tells how many amps I used. just got a volt meter reader. Readings are as follows.

Before Flight-
Average 4.16 per cell

Post flight ( 4+ min) -
Average 3.6 per cell.

Above data on PXL 460. Have not tested on 450TH yet. Both KP and ACE performing equally well. Comments anyone?? Why my flight time so short? Maybe my MT too Heavy???

[johndyl]

maybe u wanna try 14t on that 450th :P

[IMK]

yes. i might. anyone got a spare 14T lying around for cheap sale?? I m trying out 12T on the PXL. hope to get more steady punch and longer flight time. Uncle Mike suspected bogging during punch up. Me having problems sustaining invert and punching while inverted.

[johndyl]

yes. i might. anyone got a spare 14T lying around for cheap sale?? I m trying out 12T on the PXL. hope to get more steady punch and longer flight time. Uncle Mike suspected bogging during punch up. Me having problems sustaining invert and punching while inverted.

maybe not enuff -ve pitch?

[IMK]

Used a 12T pinion with the PXL. RESULTS=
Flight time increased to 7 min + , . No clear indication of lowered HS at this point. I just stopped to play safe.
post flight batt voltage ACE - 3.5V average, KP - 3.25V. Noticed that one of my KP batts had a cell voltage diff more than .20V than the others immediately post flight. When cool Voltage diff less than .05V. Post charging with Align BAlance charger - diff less than .03V between cells.

Post flight
Batts were both just sli warm. ESC is almost cool! Motor sli warm only.

MT flight performance was great. V steady hovering altitude. Punch up is responsive and quite linear. I guess this gear ratio really abolished a lot of bogging!?. Inverted punch seemed better. Need a few more test flights to confirm. And yes John, I will recheck my -ve pitch. Last I checked it was at -10. Will re verify.