Sep 22, 2019, 01:53 PM
Registered User
Discussion

Hello all (again).

I'm setting up my radio (DX6e) and had a question regarding pitch curves. I understand most of the programming jargon, however I don't understand the logic behind the pitch curve portion. For example, the manual states to plug in the numbers (throttle curve) pos 1: 0 40 60 80 100, pos 2: 100 90 80 90 100 pos 3 is set at 100 across the board. Those numbers make sense to me (position 1 normal flight, 2 and 3 for 3D). The manual then states to plug in the numbers (pitch curve) 30 40 50 70 100 (position 1), the other two positions on the switch are set to 100 25 50 75 100. Shouldn't those values be 0 75 50 75 100 ( positions 2,3/pitch curve)?

Setting up radios is new to me. Trying to understand it all.

Thanks.
 Sep 22, 2019, 02:08 PM Registered User I would have thought that the pitch curve for positions 2 and 3 should be 0 25 50 75 100. The zero at the beginning gives you full negative pitch, which is what you might need when you fly inverted. In position 1, on the other hand, the lowest number (30) doesn't allow you to go to full negative pitch. One reason for that is to avoid beginners slamming the model down so fast that it damages something.
 Sep 22, 2019, 03:22 PM Registered User Thread OP Thanks for the reply, abenn. I think I understand now. '0' is the opposite of '100', where 100 is full positive pitch and 0 is full negative pitch?
Sep 22, 2019, 03:39 PM
Registered User
Quote:
 Originally Posted by CrazyKB I think I understand now. '0' is the opposite of '100', where 100 is full positive pitch and 0 is full negative pitch?
I don't have a Spektrum radio, but I'm sure that's right. Some other radios go from -100 to +100 for full negative to full positive, instead of 0 to 100.
Sep 22, 2019, 03:48 PM
Registered User
Quote:
 Originally Posted by abenn I don't have a Spektrum radio, but I'm sure that's right. Some other radios go from -100 to +100 for full negative to full positive, instead of 0 to 100.
Thanks for the help, mate. Should have my Blade mCP S up later tonight. Perhaps, I'll take the 230s out some time soon ( been sitting in the box for almost a year and a half unused, it's still new). Took a long time to learn to fly CP on Realflight 8.
 Sep 22, 2019, 04:02 PM Going back to balsa Here is how I set them up- Throttle curve: Position 0 = 0-80-80-80-80 Position 1 = 90-90-90-90-90 Position 2 = 100-100-100-100-100 Collective pitch curve: Position 0 = negative 4 degree - positive 10 degree blade pitch angle (linear transition between 4 and 10) Position 1 = same Position 2 = same Then I fly it and make adjustments as needed.
 Sep 22, 2019, 07:34 PM Registered User as stated you don't want or need full negative in normal mode. so the lowest value is 35% or so (personal preference). so you might have 35% 50% 60% 75% 90%...because you aren't going to fly around in normal mode. once you are into the stunt modes, you can vary from the defaults. for example, if you are flying scale there is no need for more than a few degrees of negative but your throttle "curve" is probably a horizontal straight line. some pilots run flat pitch up around center to make it impossible to take off in normal mode. it prevents them from lifting off and forgetting to go to stunt 1 before going inverted.
 Sep 27, 2019, 03:46 PM Registered User Thread OP Thanks for all the replies. I'm still trying to set up my radio (DX6e). My first question has to do with F-Mode Setup. I assume that the flight mode switch is the switch that toggles through the three flight modes on heli? And 'Hold' has to do with the switch for throttle hold? My other question concerns Channel Assign.. When I go to Channel Input Config this is what I see: channel 1 Throttle: N/A, channel 2: Aileron: N/A, channel 3: Elevator: N/A, channel 4: Rudder: N/A. Manual states to set channel 5 (gear) for switch B (which I did) and channel 6 (aux1) to INH (which I suppose means inhibit) which is already set to that parameter. Does all that appear to be correct?
 Sep 27, 2019, 06:07 PM Registered User channels depend on your heli/ fbl and receiver. if it's spektrum 636 with a 3 servo swash plus rudder, ch 6 PIT in the menu and monitor, but is the input channel on the rec for the second aileron servo. it should be activated when you pick the swash as "normal". let us know what you have and we can likely give you more info. congrats on setting up your heli! I just bought a DX 6E - it's a great radio! Last edited by koppterX; Sep 28, 2019 at 11:02 AM.
Oct 07, 2019, 10:56 AM
Heli nut " the wife said so "
Hi mate I fly with a spekrum radio and all of my pitch curves are the same 0,25,50,75,100 which gives me -12, 0 mid stick ,+12 ,
I do this so heli does not jump when changing from normal to idle1 ,idle2 there is just an rpm change , try and fly on a governor mode esc , the only golden rule is put throttle stick to mid way so you have zero pitch on start up and used hold as motor on and off so it will fly like this
 New Tarot 600 (4 min 55 sec)