auto demo collective stick

[moyesboy]

The illustration of tx stick positions has been corrected so that for
helicopters the throttle stick now shows collective pitch rather than
throttle (ie true flying stick position). however the demo of inverted
autorotation still shows the stick as throttle (and this may be true of
other demos too). The auto roationdemo is actually no help in trying to
figure out how to autorotate as the left stick position is just full down,
instead of showing the tricky skillful bit!

Gordon Rigg

[David Drew]

Pardon Say that again

[gazza]

Did I miss something??

[Ashley Davis]

he's referring to the early bug in phoenix where the tx sticks showed throttle not collective.

[ChrisB]

He`s been at Steve`s green as well i reckon

[David Drew]

Phew!!!!!!!!!

Thought I had missed out on something........................only another bloody Pheonix post

[moyesboy]

OK I'll put it another way.
how much negative pitch (or positive if inverted) do you use during an autotation descent, because on the phoenix demo it still has the bug which means the stick shows throttle, so the stick is on the bottom stop.
I can't seem to keep the rotors going fast without an irrecoverably fast descent rate no matter which model I load.

[Ashley Davis]

the theory of autorotation is as follows :

You intorduce more negative pitch to make your heli drop faster, this does NOT make the blades spin faster. When you reintroduce pitch to the blades they speed up, the most efficient spin up occuring at +0.5 degrees (if you are right way up) or -0.5 if you are inverted.

The reason to use more negative is to build potential energy (dropping momentum) which you kinetically convert to blade speed by reintroducing pitch. However, eventually the potential energy will be lost (drop speed reduces) and the blades will start to slow again.

[Nutz]

I find the easiest way to do a auto (apart from starting at a foot and working your way higher) is to fly it in like a plane!
Have some forward speed into the wind (not to fast) and glide it down with the pitch as you near the ground pull the nose up to slow down and use the pitch to slow the descent, as you come to and stand still level off and use the pitch for a nice touch down.
Like I said think of it like a plane approaching slowly for landing and flaring for touchdown.

Last week I built up the courage to do some autos with the Trex, it was really windy and it autoed OK, but I could not get a soft landing. It was like as soon as you flaired and come to a stand still it would drop fairly sharply. I did quite a few and did not do any damage (soft grass).

[Ashley Davis]

I wrote this a while back ....

http://www.swift-tuning.com/autorotation.php

[moyesboy]

Phoenix replied and they understood me:
We have reviewed the videos you have mentioned and yes you are completely correct that the collective pitch channel appears to be missing. We will make sure that this video is re-recorded and included in the next update. Thank you for your input in this matter.