Gyro did NOT arrive at Skyline this AM, have to sack the secretary, she
missed the 5:30 post Monday night. Unforgivable.
I'm using Hitec 85 BB servos, same as the MHW build in the Jan 2003 edition
where Russ Deakin said he was impressed with the tail rotor assembly and the
way the tail flew. He ALSO used the CSM 200.
Odd
--
Alan
alanDOTrait@btopenworld.com
Replace the DOT to reply
http://heliweb.users.btopenworld.com/
"Andrew Duncan" <a.duncanNUT@helicop.freeserve.co.uk> wrote in message
news:eftp5vg6167ca4iovn2aj6ooorjhk1jrpl@4ax.com...
> Graphit 33 spray arrived today. Ran the motor as slow as possible with
> blades off, and sprayed the belt around the front drive pulley area
> for several seconds. this should have coated the belt inside and out
> with graphite particles.
> On the lawn and into the hover - twitched a bit for 30 seconds
> or so, then steady. no more glitching!!
> The tail still dithers a bit in the hover with CSM gyro, maybe
> because it's a Hitec HS81 servo on tail and only doing about 1300 rpm.
> Turning the gain down to 25-30% helped the wandering, as did
> putting the rpm up to about 1500.
> As a test I flew sideways into wind. The tail held solidly,
> but when I stopped, it turned slightly into wind.I think a better tail
> servo would help a lot.
> How have you got on with Skyline/CSM?
>
> a.duncanNUT@helicop.freeserve.co.uk
> Unscrew NUT to reply
>
> >On Tue, 25 Feb 2003 18:10:37 +0000 (UTC), "Alan Rait"
> ><alanDOTrait@btopenworld.com> wrote:
> >
> >Just a thought - the Schultze instruction (18.46K esc) say to use a
> >graphite spray on the tail rotor drive belt. The graphite particles
> >are conductive, and should dissipate any static build up. My logo
> >started to glitch more and more after about 5-6 flights, so I,ve
> >ordered the recomended Graphit 33 spray from electrovalue today. Will
> >report later on the result.
> >
> >I agree about the CSM200. The gain needs to be well under 50%, and the
> >tail is certainly not locked. This surprises me , as the Logo 10 is
> >the smoothest heli I,ve ever had.
> >
> >a.duncanNUT@helicop.freeserve.co.uk
> >Unscrew NUT to reply
> >>To add to the thread, I've just returned my CSM 200 as well! It's only
had
> >>three fights was VERY twitchy and made the tail feel uncomfortably
loose.
> >>The gain had to be below 50% (otherwise it hunted like a hound dawg) and
the
> >>ATVs were reduced to about 50%. (CSM suggest about 60-65%). On Sunday I
> >>strapped the heli, LOGO 10 to the table, took the blades off and sparked
her
> >>up.
> >>
> >>First off, I noticed with the gyro plugged in there was a twitch on the
left
> >>roll servo, this was BEFORE I'd connected the flight pack BTW. When the
> >>flight pack was connected and the whirly bits were going round, every
three
> >>seconds or so the tail gave a huge twitch, after a while, the swash was
> >>moving in tune with the tail twitch. ODD!
> >>
> >>Then I disconnected the gyro and tried again. This time NO twitch on the
> >>roll servo and the tail was dead steady at all collective positions.
Skyline
> >>models are checking it out in the morning and either returning it 'cos
I'm a
> >>pratt and missed something obvious, or replacing it.
> >>
> >>Will let you know
>