dave p

External User

 

Posts: 1

Even though I'm on only my 4'th gallon of fuel in my Caliber 30, I'm playing
around with autorotation. Here is my question. When I had my training gear
on (2 36 inch dowel rods with 4 pretty light wiffle balls), when I went into
throttle hold at several feet above the ground, the copter pretty much
stayed on heading and I'd add collective to make the landing smooth. Now
with the training gear off I've started to play with autorotations again
from up to 5 feet high but now the copter turns right 90 degrees when I go
to throttle hold. I've tried various gain values and I've tried heading hold
and normal. It always seems to do it. I have JR servos but I don't have any
super duper fast servo on the tail rotor.

Any suggestions as to what to try or is this pretty normal?

Thanks!

Dave P

gianmarco

have u set the radio so that tail goes to 0 pitch when hitting hold?


gm

beav

Shouldn't need to do that with a HH gyro gm. it SHOULD hold it, but I think
a quick servo would make it work a LOT better.


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
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beav

Well the standard servo will lag slightly behind your switch speed (that's
instant), but it shouldn't rotate a full 90 degrees. It'll WANT to move the
tail to the right when you flick the switch because you've got a fair amount
of pitch on the tail blades and the longer it takes for the servo to take
that pitch OFF, the more rotation you'll get (the tail doesn't need any
pitch when the engine is "throttle held")

ANYTHING that you can do to take the strain off that servo will help, so...

Check your tail rotor linkage for friction, includng the tail blade holders
as they tend to take some punishment during the early learning phase.

--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
http://www.beavisoriginal.co.uk