Today's Message Index:
----------------------
1. 07:43 AM - degreaser (MFilucci@aol.com)
2. 09:21 AM - Prop Angle and bearing adjustment (Frank Haertlein)
3. 10:56 AM - Re: Prop Angle and bearing adjustment (Walt Lannon)
4. 06:32 PM - The Yak and the WIFFERDILL (Frank Haertlein)
5. 08:47 PM - Re: The Yak and the WIFFERDILL (Gus Fraser)
6. 09:50 PM - LANDING GEAR (Ronald Kalemba)
Message 1
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--> Yak-List message posted by: MFilucci@aol.com
Fellow Warbird Drivers,
Simple Green has a new, aircraft compatable, cleaner on the market: Simple
Green Aircraft & Precision Cleaner. It is formulted to comply with Boeing Spec
D6-17487P. I gave it a test run on the belly of my CJ this morning -- it
works.
_www.simplegreen.com_ (http://www.simplegreen.com)
800-228-0709
Message 2
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| Subject: | Prop Angle and bearing adjustment |
--> Yak-List message posted by: "Frank Haertlein" <yak52driver@earthlink.net>
Yasters;
I need confirmation on a few things. Is the prop blade angle of 14.5
degrees measured exactly 1 meter from the center of the hub?
Also, in adjusting the prop bearings, are they snugged up similarly to
how you snug up a wheel bearing? After rebuilding my prop hub, I notice
that the prop nut locking tabs no longer line up with the holes drilled
into the hub. I can get them to line up but then the bearing adjustment
seems overly tight. My guess is you need to custom build these locking
tabs to fit each new bearing adjustment point. Is that correct?
Thanks In Advance
Frank Haertlein
YAK-52
N9110M
L71
The New, Official Seal of the Democratic Party.
http://home.earthlink.net/~yak52driver/seal.jpg
Message 3
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| Subject: | Re: Prop Angle and bearing adjustment |
--> Yak-List message posted by: "Walt Lannon" <wlannon@cablerocket.com>
----- Original Message -----
From: "Frank Haertlein" <yak52driver@earthlink.net>
Subject: Yak-List: Prop Angle and bearing adjustment
> --> Yak-List message posted by: "Frank Haertlein"
<yak52driver@earthlink.net>
>
> Yasters;
> I need confirmation on a few things. Is the prop blade angle of 14.5
> degrees measured exactly 1 meter from the center of the hub?
Both are correct for the V530 prop on the M14P
> Also, in adjusting the prop bearings, are they snugged up similarly to
> how you snug up a wheel bearing?
No. They are adjusted at overhaul to a specific turning torque for each
blade with the connecting slider removed from the hub. This is not feasible
to do in the field so I use a slightly higher torque value and with two
spring scales and two people adjust the bearing nuts to equal values of
blade turning torque.
The individual blade turning torque value is approx. 8 ft lb, I can't
remember tolerances right now but will check at the hangar today.
When finished (with acceptable blade turning torque) the bearing nut
tightening torque should be within 17 in lb of each other.
After rebuilding my prop hub, I notice
> that the prop nut locking tabs no longer line up with the holes drilled
> into the hub. I can get them to line up but then the bearing adjustment
> seems overly tight. My guess is you need to custom build these locking
> tabs to fit each new bearing adjustment point. Is that correct?
> Thanks In Advance
That is correct. I make them from .063" St Steel.
Unlike the Chinese prop the Russian props. I have seen have bearing nut
index markings ("0") on the hub and nut. These were very close to lined up
after torque adjustment so that is probably their purpose. Maybe that is all
you have to do!
Walt
> Frank Haertlein
> YAK-52
> N9110M
> L71
> The New, Official Seal of the Democratic Party.
> http://home.earthlink.net/~yak52driver/seal.jpg
>
>
Message 4
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| Subject: | The Yak and the WIFFERDILL |
--> Yak-List message posted by: "Frank Haertlein" <yak52driver@earthlink.net>
Yaksters
Did my first "wifferdill" a few weeks ago. As I understand it, a
wifferdill is "a totally indescribable maneuver". Well, at least during
the heat of the moment it seemed indescribable. Was showing off above a
private airstrip between Mojave and Rosamond (Ancient Valley). Did a 5G
pull into a loop. Right before entering the up line the left wing let
loose into an accelerated stall. Wasn't expecting it so it was at first
disorienting. Geese, it happened fast! Ended up being pointed straight
up under full power.
Proceeded to finish with an unplanned but beautiful hammerhead. It was,
basically, a snap roll on the up line finishing in a hammerhead. AHHHH,
the freedom of flying and the joy of discovery!! You gotta love it! :)
Frank
YAK-52
N9110M
Calif. City, CA (L71)
http://home.earthlink.net/~yak52driver/never_forget.html
Message 5
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| Subject: | The Yak and the WIFFERDILL |
--> Yak-List message posted by: "Gus Fraser" <fraseg@comcast.net>
An avalanche going up the mountain rather than from the top, nice. Why were
you pulling 5 G for a loop ? Sounds like the best way to loose E in a
display. The Yak 52 does great but too much energy is not something that she
suffers from.
BTW an avalanche is known as a portious loop in England, I will teach you
guys to speak English if it kills me :))
Gus
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com]On Behalf Of Frank Haertlein
Subject: Yak-List: The Yak and the WIFFERDILL
--> Yak-List message posted by: "Frank Haertlein"
<yak52driver@earthlink.net>
Yaksters
Did my first "wifferdill" a few weeks ago. As I understand it, a
wifferdill is "a totally indescribable maneuver". Well, at least during
the heat of the moment it seemed indescribable. Was showing off above a
private airstrip between Mojave and Rosamond (Ancient Valley). Did a 5G
pull into a loop. Right before entering the up line the left wing let
loose into an accelerated stall. Wasn't expecting it so it was at first
disorienting. Geese, it happened fast! Ended up being pointed straight
up under full power.
Proceeded to finish with an unplanned but beautiful hammerhead. It was,
basically, a snap roll on the up line finishing in a hammerhead. AHHHH,
the freedom of flying and the joy of discovery!! You gotta love it! :)
Frank
YAK-52
N9110M
Calif. City, CA (L71)
http://home.earthlink.net/~yak52driver/never_forget.html
Message 6
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--> Yak-List message posted by: Ronald Kalemba <emu21@sbcglobal.net>
YAKSTERS,
Went flying today and right gear didn't come up on CJ-6. Left gear and nose gear
came up normally and right gear didn't move as I still had green lite on right
gear. Seemed to be air bypassing as I had atomized oil by gear handle. Put
gear handle to neutral (off) for a few seconds and then back to up and then Rt.gear
went up. Flew for about 30 min. and gear came down normally. This happened
once before. Any ideas what needs to be done to fix this problem?
Thanks,
Ron Kalemba
Emu 21
224-558-8173
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