bmw330i
06-19-2007, 04:42 PM
Hey all,
Something very odd happened today flying my new MiniTitan E325. BTW, it's so easily the best Heli I have. Seems miles more "connected" and "stable" while flying than my t-rex 450se. Same electronics for the most part in both (i.e. same servos, rx, gyro, tail servo).
So, here's what happened....flew one pack (Apex 2200mah 15c) for about 10min, landed. About 10min later put the 2nd pack on (same brand/type), set it down, throttled to about 45% then hit the Idle-Up...then punched it...sweet!! it shot up like a rocket (to me anyways it seemed like it)....then at the top I went to hover and noticed no power...hey!!!! The motor isn't running....
...and down to earth if fell...
Now in the simulator I have been practicing autos so it wasn't as bad as it could have been...but my inexperience hurt the Heli...at the top of the punch-out I used up most of the rotor speed just figuring out that the motor was off...so by the time I went to negative pitch to try and gather up rotor speed again it was dropping pretty fast...so my flare out was pretty sad and it hit hard...fortunately flat and bounced up then down then on it's side...
Total damage seems to be a cracked stock tail skid and broken landing gear....
When I got to it all the controls were working, I checked them all out and everything was working fine but the motor. Gave it power and nothing...
I am running an external BEC so the electronics working wasn't such a surprise...
Now, here's my thought...did my punch out draw so much current that the voltage in the Apex pack dropped by the magic number in my Castle Creations 45A ESC...so it cut off the motor??? I think it's stock programming out of the box on the CC45A.
Or...what do you think happened. I am going to later plug the ESC in again (I had to go back to work) so I have not tested if the ESC re-arms and works fine again...i.e. if my hypothesis is correct the ESC is fine it's just the "hard" cut-off needs to be disabled.
Something very odd happened today flying my new MiniTitan E325. BTW, it's so easily the best Heli I have. Seems miles more "connected" and "stable" while flying than my t-rex 450se. Same electronics for the most part in both (i.e. same servos, rx, gyro, tail servo).
So, here's what happened....flew one pack (Apex 2200mah 15c) for about 10min, landed. About 10min later put the 2nd pack on (same brand/type), set it down, throttled to about 45% then hit the Idle-Up...then punched it...sweet!! it shot up like a rocket (to me anyways it seemed like it)....then at the top I went to hover and noticed no power...hey!!!! The motor isn't running....
...and down to earth if fell...
Now in the simulator I have been practicing autos so it wasn't as bad as it could have been...but my inexperience hurt the Heli...at the top of the punch-out I used up most of the rotor speed just figuring out that the motor was off...so by the time I went to negative pitch to try and gather up rotor speed again it was dropping pretty fast...so my flare out was pretty sad and it hit hard...fortunately flat and bounced up then down then on it's side...
Total damage seems to be a cracked stock tail skid and broken landing gear....
When I got to it all the controls were working, I checked them all out and everything was working fine but the motor. Gave it power and nothing...
I am running an external BEC so the electronics working wasn't such a surprise...
Now, here's my thought...did my punch out draw so much current that the voltage in the Apex pack dropped by the magic number in my Castle Creations 45A ESC...so it cut off the motor??? I think it's stock programming out of the box on the CC45A.
Or...what do you think happened. I am going to later plug the ESC in again (I had to go back to work) so I have not tested if the ESC re-arms and works fine again...i.e. if my hypothesis is correct the ESC is fine it's just the "hard" cut-off needs to be disabled.