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Other › Question about pitch
02-07-2006 04:25 AM  12 years agoPost 1
gpison

rrNovice

Boca Raton, Fl

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Using an align pitch gauge, what is the correct amount of pitch in regular flight mode with the throttle stick all the way down? I have a long time before I get into idle up mode as I am still working on just the basics. It is set at -9 right now and it just slams into the ground if I get in trouble and throttle back.


thanks

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02-07-2006 04:41 AM  12 years agoPost 2
Ezra

rrApprentice

Blue Mountain Beach, FL

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Try around -4. That should help a bit.

Alan

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02-07-2006 04:45 AM  12 years agoPost 3
Mr.Gravity

rrApprentice

Mena,AR

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The -9 to +9 is very common. It makes it easy to set the pitch to zero degrees at 1/2 throttle stick position because it makes everything easy to square up which in turn makes your throws very linear. When I help friends that are new set up a TRex, I set it up from -9 to +9 with 0 at 1/2 stick and then simply go into the pitch curve page and raise the low end to about 25% so basically it disenables the bottom of the pitch curve and then you simply take the 25% back to 0 for a linear 0 to 100 curve as you feel more confident to use the entire range of pitch. I just raise the low point until it gives us about -3 to + 9 for someone starting out that has not flown before and this will keep you from slamming the heli to the ground so bad when you drop the throttle so quickly. Just don't go too much lower than -3 because in a gust of wind, the light TRex can really take off like a kite.

Hope this helps!

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02-07-2006 04:52 AM  12 years agoPost 4
gpison

rrNovice

Boca Raton, Fl

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I went into my pitch curve and set the bottom end value to 35 then I reset the transmitter and checked the pitch again at 0 on the left stick, it was still at -9. I assume that I should see that change given that the pitch curve is set up correctly and working, yes?

I was getting ready to manualy change the pitch using the pitch gauge. Is this the wrong direction to be going in?

Thanks

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02-07-2006 05:15 AM  12 years agoPost 5
Mr.Gravity

rrApprentice

Mena,AR

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Yes, you should see a change in the pitch if you made the right changes. Make sure that you are changing the pitch curve in "Normal" flight and that you are not in "Stunt 1" page.

You do not want to adjust manually because if you have a pitch range right now from -9 to + 9 and you manually adjust the blade grip linkages to give you -3 on the bottom , you could end up with +14 or +15 at the top.

What radio are you using? Give details of how you made the changes.

Also make sure to unplug the motor so that you do not have to flip the throttle hold on to check you pitch range because with throttle hold on you will be reading the pitch range that you have set up and available for throttle hold pitch curve.

Just a thought!

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02-07-2006 09:40 AM  12 years agoPost 6
davidgp

rrNovice

Orlando, Florida (by the mouse)

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I kept raising the lowest pitch until it was about +4 degree when learning to hover, learning nose in, etc. The heli will come down much softer in a panic stop this way. Even at 0 degrees it dropped fast enough to break the stock struts from just a couple of feet.

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02-07-2006 02:43 PM  12 years agoPost 7
Ezra

rrApprentice

Blue Mountain Beach, FL

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Mr. Gravity is leading you in the right direction. That is the way to do it. IMO, you want to leave some negative so that you don't encourage bad habits. If you practice like you suggested with 0 or +3, it will make it that much harder later to learn management of the collective in idle ups, etc, because you've already trained your brain that full down elevator will bring it down softly. Use -3 or so as Gravity has suggested and work on lifting off & setting down softly for a few minutes, then move on to hover practice, etc. That way when you do get in a little panic, you're more likely to bring it down softly. Our brain does what we teach it to do. Let us know how it goes.

Alan

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02-07-2006 05:11 PM  12 years agoPost 8
standard_63

rrNovice

Seattle

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I agree with Ezra -- I am just starting out too and had the same problem slamming into the ground in a panic. I did as Mr. Gravity suggested and raised my pitch curve low end until I had a small enough amount of -pitch that it didn't slam so hard, and now I notice myself catching the stick around 1/3 way up instead of going all the way to the bottom. I'm able to pull the heli back up now in a panic before it hits the ground, or at least keep the landing a bit more gentle.

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