Step-by-Step Blade Pitch set-up...Please`

[Formap]

I want my bird to be set up as +10 / -2. A low negative pitch will help to keep the bird from slamming into the ground. Now what do I adjust to get that pitch? End point adjustment, swash plate adjustment, pitch curve, all three or none of the above? It seems all videos fall just short of telling me what I need to do

I took my heli to the LHS today and Rob set up the bird and test flew it in the shop. Perfect. Even flew it hands-off a bit. But Rob didn't go into how he made the adjustments and in what area of the radio (a DX7).

Not that I'm ungrateful, but in order to get my bird flying right, Rob changed my 90 degrees servo arms into NOT so 90 degree arms. I KNOW if I try to reset the arms where they're nice and pretty again, the heli will no longer fly as it did for Rob.

Is it important to get the servo arms straight and level in the beginning only, and stop worrying about it as you are trimming it up?

What steps (and in what order and area of the TX) do you go to trim it up? (Rob did a blade pitch by eye and using the TX got 10 degrees up and 4 degrees down. Not bad I would say.)

Can someone steer me to pictures, videos, etc.? I've watched every video from Finless Bob I could get my hands on including CCPM1 and 2 - several times. I just need more info.

I hope someone can help me. Building the perfect ship without a perfect pitch will result in a perfect mess.:confused:

"Good enough is NEVER good enough"

[richo2901]

Just by using your pitch curves to get -2 - 10+.. Get a pitch guage and go into your pitch curve menu, and ajust the curve to suit whatever you want more or less.

Servo horns, depending on heli type's, but mostly heli setup is a rule of 90 deg EVERYTHING at 90 degrees..

If everything is setup right mechanically you still might need a click of trim here and there but anymore i would go back a recheck..

Finless's video are tops are should put you on the right path.

Hope this helps.

richo

[Skarn]

As richo says you limit your negative pitch by using a normal mode pitch curve. The Finless video does show you how to do that as well as the Jermo DX7 video. You will need to use your pitch gauge to get -2, but a good starting point would be to have the 1st number in yout pitch curve at 40. So to start set it up like this (40, 45, 50, 75, 100). Again, this is just a starting point and you'll need to use your pitch gauge to get the 1st number accurate.

BUT, with all that said and done, I HIGHLY recommend you actually start to learn using a linear pitch curve (0, 25, 50, 75, 100). You will end up flying that curve anyway, so why learn twice? Yes, you will have to learn right away to not slam the throttle down when you get in trouble.....that is what throttle hold is for.

Also, you DO want your servo arms at 90deg when neutral. You can use sub trim to achieve this, but not regular trim. I set up my trex per the finless video's and don't use ANY regular trim at all and very small subtrim.

Good luck!
Skarn

[Formap]

Thanks guys. I think I'm starting to get on the right track. A friend of mine told me basically the same things you are telling me. It just never sunk in.

One thing I did do (which my friend said not to play with it), I set my -2% on my L (which came out to 43.5%). But the best I could do at 100% pitch curve was 9.5%. So, I went into the Swash Mix and tweaked it to get my 10%. I ended up with +60%, -60% and -61%. Was that correct? Plus I didn't think the 1% would hurt the bird - my FLYING is what will hurt the bird, not the radio.