550X Pitch/Throttle Curves

[Rdavis007]

Hi All,
This is my first setup of the 550x and wanted to pass these settings by some experienced 550 pilots to see if they look correct. I am configuring a Futaba 14sgh.

Throttle Curve:
Normal - 0,25,50,70,100 0-100%
IU1 - 85,80,80,80,85 0-100%
IU2 - 90,90,90,90,90 0-100%

Pitch Curve:
Normal - -12,-6,2,6,12 0-100%
IU1 - 12,-6,2,6,12 0-100%
IU2 - -12,-6,2,6,12 0-100%
HOLD - -3,0,3,9,12 0-100%

Please let me know if these look acceptible. Being Futaba do I need to reverse any of the directions.I appreciate any help I may have forgotten with configuring the 14sgh.
Many Thanks I Advance
Randall

[tomatwalden]

Can't comment on the Futaba stuff, but the throttle curves will depend on your ESC and ESC setup.

[Rdavis007]

Hi Tom,
My ESC is a YEP120HV. Programming of it is my next step.

Regards

[tomatwalden]

Assuming the stock 14-tooth pinion and Gov Store mode on the YGE ... Mr Mels head speed calc gives this ..

Results from the calculation Close
Result for calculation:
Estimated lowest voltage during flight: 20,46
Lowest RPM (due to voltage and efficiency) : 2074

Throttle 60%: 1941
Throttle 65%: 2002
Throttle 70%: 2063
Throttle 75%: 2123
Throttle 80%: 2184
Throttle 85%: 2245
Throttle 90%: 2305
Throttle 95%: 2366

[kayakboy69]

On pitch I do zero to hundred on all flight modes
I always ran gov store

Make sure you have the stipid hover trim knob set to off I forget it every freekin time ! Its usually on one of the dials

In futaba if u set expo make sure there minus numbers

[Rdavis007]

Thanks for the help. I have inhibited both knobs to avoid that issue. I currently have all my pitch curves set at 0-100% , -12 to 12 degrees except for hold which is -3 to 12 degrees.

Randall

[Rdavis007]

Whats recommended, flat throttle curve or v-shaped? What are the advantages?

[tomatwalden]

Originally Posted by Rdavis007

Whats recommended, flat throttle curve or v-shaped? What are the advantages?

Assuming gov store, flat.

[kayakboy69]

Originally Posted by Rdavis007

Thanks for the help. I have inhibited both knobs to avoid that issue. I currently have all my pitch curves set at 0-100% , -12 to 12 degrees except for hold which is -3 to 12 degrees.

Randall

I would go zero to one hundred on TH also this will give you the same feel and you will be better able to recover from a o SHIT

As far as a V or flat throttle curve ....
Depends if you flying end points or gov.

[Rdavis007]

Originally Posted by kayakboy69

I would go zero to one hundred on TH also this will give you the same feel and you will be better able to recover from a o SHIT

As far as a V or flat throttle curve ....
Depends if you flying end points or gov.

OK, I am going to ask a really naive question but it must be asked. Since I admit I really don't know, what is recommended for sport flying, end points or gov. I can either setup a gov in my YEP 120HV ESC, or in the Spirit fbl. Would you recommend a gov and if so does that mean I just need flat throttle curve? Sorry for the long question but I am trying to learn.
Thanks,
RDavis007

[kayakboy69]

Yge yep have really good gov mode use gov store and then to adjust ur head speed via radio tc percent age ...

[Caeguy]

12, 13, 14? What pitch and why? I'm running 13.5 but would like to learn why select one pitch over another and where head speed play in to all this.

[crashcopterman]

On a 6s heli I tend to tame my collective a degree or two so the motor doesn't get (as) taxed, this is a big and heavy bird and it's easy to bog it on fast and aggressive moves with a lot of pitch.

Steve