Today's Message Index:
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1. 05:42 AM - Re: Re: Sky Scout Plans (Jack Philips)
2. 03:53 PM - Re: Sky Scout Plans (DonkDoug)
Message 1
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| Subject: | Re: Sky Scout Plans |
Doug,
The old rule of thumb for calculating Pilot CG was to use the location of
the pilot's belt buckle as the CG. That will work out about right with WW's
7" forward of the seat back/bottom intersection, except for the morbidly
obese pilots who will always have to wheel land the airplane because their
gut would interfere with full aft stick for a 3-point landing.
Jack Phillips
Smith Mountain Lake, Virginia
Pietenpol Air Camper NX899JP "Icarus Plummet", flying
RV-10 under construction
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of DonkDoug
Sent: Wednesday, September 6, 2017 12:41 AM
Subject: Pietenpol-List: Re: Sky Scout Plans
--> <douglas.wright@okstate.edu>
Ray,
I think that CAA material you referenced got the pilot CG about right. When
you mentioned the Brodhead newsletters I dug out William's article on Piet
W/B for Continental powered ships. He had calculated pilot CG location for
each of the airplanes he weighed. The location is very close to what you
had calculated. The mean of the values was about 7" forward of the seat
bottom/seat back intersection. Now I need to figure out how I fouled up the
calculation from Mr. Pietenpol's 1966 W/B sheet. I think my assumption as
the where there is 8 gallons of fuel stored was incorrect.
Doug
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=472542#472542
Message 2
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| Subject: | Re: Sky Scout Plans |
Jack,
Yes, I had heard/read the belt buckle/belly button rule before. The data William
Wynne collected on Piets pretty much confirms it as being correct.
Thanks,
Doug
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=472563#472563
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