Today's Message Index:
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1. 10:11 AM - Re: RV8-List Digest: 3 Msgs - 09/20/09 (Speedy11@aol.com)
2. 10:40 AM - Re: Front Mounted Governor vs. Rear Mounted Governor (Speedy11@aol.com)
3. 07:20 PM - Aerobatics and Instrument Damage (PeterHunt1@aol.com)
Message 1
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Subject: | Re: RV8-List Digest: 3 Msgs - 09/20/09 |
Probably - but you are the only one who needs to be happy with it. So, be
as fussy as you like.
Stan
Do not archive
Am I fussing too much under the hood? ;-)
Message 2
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Subject: | Re: Front Mounted Governor vs. Rear Mounted Governor |
Matt,
Now I'm starting to catch on. I wondered why you were using a McCauley
governor. You're using it to avoid buying another one.
Good idea, but it may not work too well. I have the MT governor with the
MT prop on the IO-390 and, although there were some problems to solve, it
works reasonably well. There are problems to solve no matter which one you
use. Nothing is bolt on.
Stan Sutterfield
Do not archive
I just discovered something very interesting. The gear ratio is different
between
a Front mounted governor and a Rear mounted governor - .947 to 1 (front)
vs.
.866 to 1 (rear). So that means that the McCauley governor that I have
that
I originally purchased for use with and O-360 won't even work with the
IO-390.
This page from the PCU5000 web site is very informative:
http://www.pcu5000.com/pcu5000x.htm
It details the various ratios and what not.
I also found a PDF on the dimensions of the MT governor that Van's sells:
http://www.mt-propeller.com/pdf/manuals/e-1048.pdf
This MT governor is also 1" shorter than the McCauley governor similar to
the PCU5000:
http://www.pcu5000.com/pcu5000x_spec.pdf
In this picture of the PCU5000:
http://www.pcu5000.com/index_i/hmpg_pic.gif
the PCU5000 shows an auxiliary control arm that might be very helpful in
pushing
the control cable out of the way of the fiberglass intake. Although, I
think
that just moving the control arm in by 1" compared to the McCauley is going
to be plenty.
At any rate, I've ordered a PCU5000X number "P-520-029/A-947" for my
RV-8/IO-390
combination so hopefully I can move forward on this project...
Matt Dralle
Message 3
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Subject: | Aerobatics and Instrument Damage |
I have completed some excellent Unusual Attitude training in a Cap-10 which
included loops, rolls and spins and will soon complete additional aerobatic
training. Then I would like to try some of these aerobatics maneuvers in
my RV-6. However, I am a little concern that the gyro tumbling and/or G
forces of aerobatics may hurt my instruments. I have an AI, HSI and S-TEC
autopilot all containing electric gyros and would hate to damage them. What has
been your experience with aerobatics and instrument damage? Should I be
concerned about this?
Pete in Clearwater
RV-6, Day/night IFR, Reserve Grand Champion S 'n F
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