[f-AA] FW: Fwd: Rigging
Cy Galley
From: aeronca...@westmont.edu [mailto:aeronca...@westmont.edu] On Behalf Of Mark Peterson
Sent: Sunday, December 15, 2013 4:25 PM
To: The Fearless Aeronca Aviators
Subject: Re: [f-AA] Fwd: Rigging
Oops, hit "enter" and it sent...
From: mrpet...@msn.com
To: aer...@westmont.edu
Date: Sun, 15 Dec 2013 14:02:02 -0800
Subject: Re: [f-AA] Fwd: Rigging
Here's what Buzz Wagner wrote on the Aeronca Rigging.....
I changed the prop when Sensenich discovered that several stations were out of spec. That gave me rpms... I also went to a 42 prop, which helped too.
The rigging was a rudder tab and that did the trick, mostly. Someday I'll measure up the wings and see what I have, but so far, its too fun to fly.
Yesterday I went up to Harvey and cleaned up the spark plug wires, resoldered all the ends on the right mag. Tried to get clever to remove the terminal without opening up the case and cracked it. Hello Fresno airparts first thing tomorrow. The rear distributor contact was a little dark, as were a few of terminal ends. Scotchbrite all around and it looks new. Next week or so I should have further reports, if Fresno has that 10-13458 terminal end...
ACS says they are getting some at the end of the month.... are they still in production????? Odd.
Date: Sun, 15 Dec 2013 03:01:30 +0000
From: 11...@comcast.net
To: aer...@westmont.edu
Subject: Re: [f-AA] Fwd: Rigging
Hey Jim. I'm certainly no expert either. However.....opinion......In theory, what you say is probably true. But in practice, with the high lift and fairly gently stalling wings of the Aeroncas, I think you would have to have a pretty substantial difference in the two wings' rigged angles of incidence to get one to tend towards an "over the top" type of stall characteristic. Maybe with more high performance wings, laminar flow, etc, they would react more aggressively in a stall if not rigged correctly, even slightly. You can get an aggressive stall from the Aeronca though if you will stall it cross controlled, in a skidding condition. The high wing then will then indeed be producing much lift still after the low wing has stalled and you can indeed go over the top quickly. That is why a skidding turn to final, low altitude, and a stall....super bad news. (A slipping turn will not do that at all and in fact won't even really stall. However, only convince yourself of that in your particular aircraft up at altitude first).
I think I will get my "adult supervision" hanger neighbor to assist me in a half turn correction on one of my wings, take off the rudder trim, and see what I end up with. If that just chases the heaviness to the other wing, maybe a small aileron trim tab could be the answer. That's what I did on my last Ercoupe and it corrected a pretty heavy wing nicely. Hmmmmm. rogeronca
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