Hawk clutch question

[Boo]

Hi,

I have a Century Hawk and I want to know the best way of testing whether the
clutch is slipping or not - any ideas ?

If it helps then I do have some headloaders but I don't really know what speed
the head should rotate with them fitted so can't just put them on and run it up
under the tacho.

Also, where is everyone these days ? This group used to thrive but I haven't
seen a post here foiw literally weeks !

Cheers,

--
Boo

[Tom Minger]

Starting with a couple of assumptions:

You are using the recommended engine and blade size for this heli.
You have the correct gearing for this heli (note that the 30 and 50 size
Hawk have different intermediate gear ratios)
You have assembled with the engine pushed upward enough for the clutch to be
completely captured by the clutch bell.

If above is correct, it is unlikely that the clutch is slipping. That Hawk
clutch will easily hold a 60 size engine. However, the clutch, or some part
thereof, could be broken. Common failures are a clutch shoe breaking off
(usually due to too much clearance between clutch and clutch bell lining) or
the clutch bell lining coming loose from the clutch bell (usually due to too
much heat - engine running after a crash for example - which will destroy
the bond between clutch lining and clutch bell).

If all the above is correct, then not getting enough head speed will be due
to improper control system assembly/set up or improper transmitter set
up...not a bad clutch.

BTW, all of the above does not apply if you have an older model with a
plastic clutch bell. If so, toss the plastic bell and get the aluminum bell.


"Boo" <reply_to_group_not_me@spam_me_no_spam.net> wrote in message
news:HvZWk.25649$K64.7275@newsfe14.ams2...
> Hi,
>
> I have a Century Hawk and I want to know the best way of testing whether
> the clutch is slipping or not - any ideas ?
>
> If it helps then I do have some headloaders but I don't really know what
> speed the head should rotate with them fitted so can't just put them on
> and run it up under the tacho.
>
> Also, where is everyone these days ? This group used to thrive but I
> haven't seen a post here foiw literally weeks !
>
> Cheers,
>
> --
> Boo