j.8
Veteran
Location: Denmark
My Posts This: Topic Forum | Hi
1) I would say 1/4-1/2 tank ( I can see you use 16 oz.dubro)
A motor cycle mecanic once told me, that they check
the plug at full rpm and then kill/turn of the engien,
then the same thing is done at half rpm/kill engien,
same thing at idle ( that`s the way he did it )
But in a heli we have to check after type of flying style,
some fly scale like, others aerobatic(low/high headspeed).
So if you check acording to your flying style, you`ll be fine,
If you can kill your engien/hovering and then auto,
that would be good,
because when ideling a plug can change collour fast.
Just run your engien as rich as possible,
the more fuel the more power.
That`s why I tune my high needle first, by doing full
power/stick clime outs, I keep opening the high till the
engien looses power, and then close it in very small steps
till it gets power again, and then I ajust the low needle
for a smoot transsion. Then you can ajust the throttle curve
for idel.( But follow the engien builders instruction for
break in first, before tuning for power )
2) what about the horizontal fin when you look at it,
is it a slim line or is it blury (vibrating) If it is
vibrating ,that can cause a HH gyro to drift.
Cause for vibration on the horizontal fin can be,
engien tuning, clutch, clutch bell out of ballance,
strange torqe tube  , fan out of ballance, or it needs
to be dail indicated, as long as the tail is not going
up and down, you can rule out tail rotor ballance.
I don`t know if 35 mph wind are the ideal condition,
to ajust the gyro in normal mode, your are a hard man 
When I was waiting for my jewel generator, the tracking #
only worked in the U.S, as soo it left U.S somthing happend and track was lost, but never the less, the jewel arrived.
Regards Bo |
Your headspeed is WAY too slow! It sounds more like 1400 rpm to me but its hard to judge 100% by not being there. I find it hard to believe its singing along at 1790 as the old timer with the tach claims. It sounds like you're flying around with spoolup rpms...
