Today's Message Index:
----------------------
1. 03:17 AM - Prop Govenor Problem? (Jay McIntyre)
2. 03:24 PM - Re: Prop Govenor Problem? (TALew)
3. 10:17 PM - Yak 50 tail wheel warning. (Dean Courtney)
Message 1
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| Subject: | Prop Govenor Problem? |
--> Yak-List message posted by: "Jay McIntyre" <jayatnowra@hotmail.com>
Hi all... unsure exactly what is going on here, but the following problem was relayed
to me by one of our syndicate members. I assume it is a problem as I can
think of no reason why it should be happening, but I would love to be wrong.
If anyone can shed some light....
Anyway, the aircraft took off and was climbed normally to a height of 7000 ft
(unusally high for our a/c). All was good until he went to reduce the power for
cruise. The manifold pressure was reduced to approx 660 but on moving the prop
control there was no change in RPM for at least 4 inchs of lever travel when
he at last was able to reduce RPM to approx 2050. He was not keen to move the
lever any further aft in case there was a problem.
On descending normal prop control was regained at about 3000 ft and all was good
for the rest of the flight.
Our a/c does not normally go to these extremes of altitude but I cannot see any
reason why altitude would have any effect. All engine temps and pressures were
in the green at all times.
Any ideas?
<EM>Regards, Jay</EM>
P.S. see you at Classic Fighters 2005!
<A href="http://www.classicfighters.co.nz/">www.classicfighters.co.nz
Gaming galore at <a href="http://g.msn.com/8HMUENNZ/2731??PS=">XtraMSN Gaming!
Message 2
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| Subject: | Re: Prop Govenor Problem? |
--> Yak-List message posted by: "TALew" <TALew@comcast.net>
Hi,
The first time I had that problem it was the control tube
that was slipping in the clamp on the front of the engine.
Good Luck
Terry Lewis
----- Original Message -----
From: "Jay McIntyre" <jayatnowra@hotmail.com>
Subject: Yak-List: Prop Govenor Problem?
> --> Yak-List message posted by: "Jay McIntyre" <jayatnowra@hotmail.com>
>
> Hi all... unsure exactly what is going on here, but the following problem
was relayed to me by one of our syndicate members. I assume it is a problem
as I can think of no reason why it should be happening, but I would love to
be wrong. If anyone can shed some light....
> Anyway, the aircraft took off and was climbed normally to a height of
7000 ft (unusally high for our a/c). All was good until he went to reduce
the power for cruise. The manifold pressure was reduced to approx 660 but on
moving the prop control there was no change in RPM for at least 4 inchs of
lever travel when he at last was able to reduce RPM to approx 2050. He was
not keen to move the lever any further aft in case there was a problem.
> On descending normal prop control was regained at about 3000 ft and all
was good for the rest of the flight.
> Our a/c does not normally go to these extremes of altitude but I cannot
see any reason why altitude would have any effect. All engine temps and
pressures were in the green at all times.
> Any ideas?
>
>
> <EM>Regards, Jay</EM>
>
> P.S. see you at Classic Fighters 2005!
>
> <A href="http://www.classicfighters.co.nz/">www.classicfighters.co.nz
>
>
> Gaming galore at <a href="http://g.msn.com/8HMUENNZ/2731??PS=">XtraMSN
Gaming!
>
>
Message 3
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FRANCIS_BUTLER@butler-machinery.com, KFrost@isquared.com,
johnhilterman1@cox.net, BitterlichMG@cherrypoint.usmc.mil,
michael_lloyd@standardandpoors.com, scott@nostalgaire.com,
scottsimmons@earthlink.net, yak-list@matronics.com
| Subject: | Yak 50 tail wheel warning. |
--> Yak-List message posted by: "Dean Courtney" <deancourtney696@hotmail.com>
Fellow Yak 50 operators,
Maybe you know, maybe you don't, but it cost us dearly so here goes. If you
still have the tail wheel oleo shock installed, PLEASE don't leave your
airplane in the hanger with the tail wheel turned around backwards (its
normal position after being backed into the hanger). We did, returned a week
later and our tail oleo had went flat. No big deal facing forward, but it
bends things facing backward. Not exterior sheet metal. It crushes the
bottom of the fuse bulkhead just behind the hinge point. So when you open
the panel to refill that oleo, you get to do that, plus a weekends worth of
sheet metal work!
We are installing the mod from Richard Goode that replaces that Damn oleo
with a spring and rubber donut, AND from now on, always spinning our
tailwheel to where it belongs.
Cheers,
Dean & Tim. Yak FNG's
Yak 50, 84-2305.
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