Today's Message Index:
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1. 02:52 AM - Re: Corvair College 36 - San Marcos, TX, 1-3 April 2016 (jarheadpilot82)
2. 06:55 AM - Re: Re: Corvair College 36 - San Marcos, TX, 1-3 April 2016 (Steven Dortch)
3. 09:56 PM - weight & balance (taildrags)
Message 1
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| Subject: | Re: Corvair College 36 - San Marcos, TX, 1-3 April 2016 |
Steve,
Kevin is busy finishing up FBG, and he doesn't get online too much, so let me
answer for him - absolutely.
Here is a link with more info-
http://flycorvair.net/2016/02/12/texas-corvair-college-36-april-1-3-sign-up-closes-soon/
Oscar hit the nail on the head. If you are any kind of experimental aviation guy,
you will have a great time at a Corvair College. You will make friends with
new people, put faces with names of people on this forum, and have a great time
in general.
Here is a video explaining more about Corvair College, filmed and produced by EAA
-
http://www.eaavideo.org/video.aspx?v=3971877626001
Here are some videos showing the kind of learning that takes place -
https://www.youtube.com/watch?v=l85w6Bk90V4
https://www.youtube.com/watch?v=dt529VT2WHQ
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Semper Fi,
Terry Hand
Athens, GA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=452884#452884
Message 2
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| Subject: | Re: Corvair College 36 - San Marcos, TX, 1-3 April |
2016
Thanks, i sent it to our EAA newsletter
Message 3
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| Subject: | weight & balance |
Okay, so really, builders don't need to be waiting till their aircraft are almost
finished before thinking about W&B. In fact, the earlier you start to think
about it and start getting numbers in your head, the more confident you'll be
about it when it comes time to do the final, actual W&B and fill in the forms
that you'll show at the end. Once you have the bare fuselage -covered or not-
on the gear, you're ready to start measuring and weighing. At that point you
can start plugging some numbers into a W&B spreadsheet and it will be even
easier if you don't have the wings or engine on the bare fuselage because you
can move it around the shop or hangar very easily. Not only that but if you don't
have the cabanes and centersection mounted yet, it will be even easier to
get your helper to climb into that front cockpit to do the weighing to get the
passenger moment arm calculated.
With the fuselage on the gear (as long as the geometry is locked in and the gear
mounting brackets are actually bolted to the fuselage or at least pinned in
place in final locations), you can determine the various moment arms for the main
gear and tailwheel, as well as the moment arms for pilot and passenger. If
you're using a nose tank you can also determine the moment arm for it if you
have the tank fabricated and can set it temporarily in place in the forward fuselage.
All of this can be done with nothing more than masking tape, markers,
a string and plumb bob or fishing weight, and a couple of simple bathroom scales
since the accuracy of the scales doesn't matter too much at that point.
They just need to be reasonably accurate and the readings repeatable, and the
actual weights won't matter much in order to determine moment arms.
As a starting point I can offer the Excel spreadsheet that I've used for the W&B
on 41CC, and I can probably also cook up a simple spreadsheet for coming up
with the passenger and pilot moment arms after you've taken some simple readings
on a rainy workshop day when you and a helper are able to make some measurements
slowly, carefully, and thoughtfully. If you do it right the first time,
you'll never have to do it again. The upside to all of this is that if you start
the process early, you can make adjustments as you go along and not get surprised
at the very end when you find out your airplane has a heavy tail and
you have to find a way to offset or move it.
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=452912#452912
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