Today's Message Index:
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1. 08:23 AM - Re: Sky Scout Plans (taildrags)
2. 09:06 AM - Re: Sky Scout Plans (DonkDoug)
3. 09:53 PM - Re: Sky Scout Plans (taildrags)
Message 1
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Subject: | Re: Sky Scout Plans |
Well now I'm curious. When I did the W&B on my airplane (calibrated digital race
car scales, first W&B done by me after repairs were completed and second W&B
done after I changed the A65 to A75, done by an experienced Tech Counselor who
has done dozens of weighings), we weighed the airplane empty and then again
with me sitting in the cockpit, so the 49.64" aft of wing leading edge is pretty
accurate on mine. My wing is inclined backward 4" and mine is an Air Camper,
not a Sky Scout. I'm going to go back to the measurements that I took to
see where that places the pilot's CG relative to the bottom corner of the pilot's
seat.
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Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power, 72x36 Culver prop
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=472581#472581
Message 2
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Subject: | Re: Sky Scout Plans |
Oscar,
By my estimate your pilot CG at 49.64" from the leading edge leaned back 4" would
be about 11" forward of the seat back and bottom interesection if your plane
is built according to the long fuselage plans. Or about 7.5" if the seat back
is at a 15 degree angle as Ray built his Sky Scout. I imagine it is somewhere
between those two values.
Can you guys tell I retired this summer and have way too much time on my hands?
Doug
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=472583#472583
Message 3
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Subject: | Re: Sky Scout Plans |
Doug; my seat back is not angled back any amount from stock, or at least I don't
think so, but that makes me wonder even more! I shall put the angle finder
on the pilot's seat back next time I'm at the hangar! Anyway, 11" forward of
the seat back/bottom intersection sounds pretty good considering that in the last
10 years I have progressively lost sight of my "lower anatomy" behind the
growing crest of a beer belly (a desk jockey belly, actually), and have gone from
a 29" waist to a 33" waist at the belt line but considerably greater above
that line. I don't know what has happened there.
Now let's see: if I were to calculate the center of mass of the bulge that is above
my belt buckle, adjusted for the distance that my belt buckle has disappeared
over the horizon, multiplied by 7" and divided by the wing area, multiplied
again by the gross weight of the aircraft- the result (rounded to the nearest
decimal place) might be the time in hours and minutes that I can fly at normal
cruise between potty stops. Adjusted for headwind, of course.
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power, 72x36 Culver prop
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=472604#472604
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