PDA

View Full Version : How do I simulate setting the actual pitch of the blades?


racin06
06-18-2007, 08:35 PM
OK, I've set up the pitch and throttle curves for both Normal and Idle1 modes in my DX7 in accordance with the Fineless Bob videos. Now, when I switch from Normal to Idle1 modes with the T-Rex 450SE model in Phoenix RC, the heli shoots straight up in the air even when the left stick is all of the way down. Therefore, I think I need to simulate actually setting the pitch of the blades on the 450SE. In other words, in Idle1 the blades would be set at -11 at Point1 and at +11 at Point 5. So, how do I do this? Thanks.

Ivan
06-18-2007, 10:20 PM
Are you sure you don't have your curves mixed up, having the V curve on the pitch instead of the throttle?

racin06
06-18-2007, 10:30 PM
No, the curves are correct with the V Curve set on the throttle in Idle1. I think it has to do with channel assignment in Phoenix RC. I have Channel 1 assigned to Engine and Channel 6 assigned to Collective Pitch. However, the Collective Pitch slider just immediately jumps to maximum when I move the left stick upwards. I have calibrated the transmitter a million times and I still have this problem.

racin06
06-18-2007, 11:23 PM
OK, I figured it out. The reason I had problems was because Channel 6 which is assigned to Engine and Collective Pitch wasn't calibrated properly. You have to calibrate while the mode switch on the DX7 is set to FLT 2, since this mode is not being used. If I tried to calibrate iwhile the mode switch is set to Normal or FLT1, then either Engine or Collective Pitch, would not properly calibrate.

So, for those who may be interested, I set up the pitch and throttle curves in my DX7 exactly in accordance with how Finless Bob's T-Rex 450 setup video.

Pitch Curves -

Normal: 40, 45, 50, 75, 100
FLT1 (Idle1): 0, 25, 50, 75, 100

Throttle Curves -

Normal: 0, 50, 80, 90, 100
FLT1 (Idle1): 100, 95, 90, 95, 100

However, back to my original question. How do I set the pitch of the main blades on the 450SE in Phoenix RC as if I was actually using a pitch gauge? How do I ensure that the pitch of the main blades will be set to -3 degrees for Normal and -11 degrees for Idle1 when the left stick is at the low position?

dos gris
06-19-2007, 12:03 AM
Being able to read the simulated pitch will be available on the next update- version 1.04

kgfly
06-19-2007, 02:07 AM
Simulator helis are mechnically perfect. So once your Tx is calibrated, it will be at zero degrees at mid stick, max positive at top stick and max negative at bottom stick (in IdleUp). Now you simply go into the heli model parameters and set the min and max pitch in degrees.

FlyingMassacre
06-19-2007, 03:45 PM
Make sure you calibrate (in Phoeinx) your tx with 0,25,50,75,100 pitch and throttle curves FIRST. If the controls are correct then change your curves in the tx to suit but do not re-calibrate in the sim. Worked for my DX7.

Good luck.

Flying Massacre