freestyle
Veteran
Location: Redmond WA USA
| Thanks Vetrider.  Here's how I look at the curves:
Set the maximum positive pitch to whatever the motor will take, and set the minimum pitch to suit the way you're going to fly the model. If you're just hovering, zero pitch is probably OK... If you're getting into forward flight, or basic aerobatics, -3 to -5... if you're doing advance aerobatics, set it to match the maximum pitch, e.g. +9 on top and -9 on bottom.
Set the points in between so the pitch reponds linearly - if you have +9 on top and -3 on the bottom, you want 3 degrees at mid stick (six degrees up, six degrees down), and a 5-point curve would look like:
-3, 0, +3, +6, +9. (three degrees difference from one point to the next)
You don't always hover at mid-stick with this way of doing things. IMO that is not a bad thing at all. There is nothing special about hovering at mid stick.
Once the pitch curve is set up, don't touch it again except to double-check it or redo it completely. You might want to redo it if your flying style make you want more or less negative on the bottom. You might want to redo it if your engine doesn't have as much power as you thought it did (maybe it won't pull +9 on top without slowing down). you get the idea.
Set the throttle curve to give a consistent head speed no matter what pitch you're using. If it slows down a mid-stick, raise the throttle at mid stick. If it overspeeds near low stick, lower the throttle at that point. Don't mess with the pitch curve though, you'll just mess up that nice linear setup you put all that work into earlier.
I hope this helps. |
Could someone please walk me thru the balance between pitch and throttle curves. I've been flying for about six months, just moving into FF...trying to add in some negative at the bottom to get ready for Auto's, the engine bogs down as I get near mid stick for hover....I assumed I would increase the throttle curve at that point but that didn't work...is it simply trial and error, do you increase one and increase the other?.....help
