[NSRCA-discussion] FAT Rudder

[Rex]

You're gonna make my head hurt!  lol

 

Rex
 


From: jnhiller at earthlink.net
To: nsrca-discussion at lists.nsrca.org
Date: Sun, 23 Aug 2009 11:37:48 -0700
Subject: Re: [NSRCA-discussion] FAT Rudder







Hi Rex, that caught my eye right away, in-flight thrust adjustment.
Mount the motor on a flexible rubber sheet donut shaped disk and move the rear of the motor with two servos (V&H axis), mixing as needed. Maybe clamp onto the front housing behind the drive washer. Might have to run a 4+" spinner. 
Since I'm in the middle of designing a new airframe anyway I will ruff out a drawing and bring it to Creswell.
When I get the header for the 1.60 I was going to breadboard the power system for a backyard run-up to get an idea what the tune length would need to be. Maybe I could check out some thrust vectoring ideas with the same set-up. Might not happen until I get back from the Scale Masters though. 
Jim
 
-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Rex
Sent: Sunday, August 23, 2009 10:07 AM
To: NSRCA-discussion
Subject: Re: [NSRCA-discussion] FAT Rudder
 
Here's a link to Chad's blog.  He talked to Bernd Bernshorner about his motor offset...  there's a short 
blurb about it....
 
http://www.chadnortheast.ca/
 
Rex
 




Date: Sun, 23 Aug 2009 12:00:19 -0400
To: nsrca-discussion at lists.nsrca.org
From: chuenkan at comcast.net
Subject: Re: [NSRCA-discussion] FAT Rudder

Yes, (del aleman = of the some country I think, maybe German[y]) Gunther Ulsamer  has a carbon fiber strip to reduce turbulence, and something about laminar flow.

Yes, definitely thrust-vectoring on the Plettenberg motor -- looks like there are 7 positions or steps to the vectoring.  I'd bet that really helps in a cross-wind!!!

Also, I didn't notice the deflectors at the bottom of the fuse -- I guess that will counter any roll-coupling effect from the top ones.  I'd love to see an assessment of what they do and how well...

All just further proof that aerobatics competition breeds innovation! :-$

At 11:30 AM 8/23/2009, you wrote:



There were deflectors at the bottom of the rudder too.  Looks he is using vector thrusting on the motor too. Something in there too about a tubulator on the wing or stab.... me Portuguese ezz no very goot either.
 
Wayne Galligan

From: Phil Spelt 
To: General pattern discussion 
Sent: Sunday, August 23, 2009 10:45 AM
Subject: Re: [NSRCA-discussion] FAT Rudder
My Portugese is not good at all, but I believe the message says it is Austrian Mayr Gehards, and something about an innovative (????something)  small deflector on the upper part of the vertical stabilizer...Anyone have any idea what they are supposed to do -- what's the benefit, other than increased tail-feather drag???  Does it direct more airflow over the Rudder at the top?  Seems to me that they might add more roll-coupling, what with the increased effect at the TOP of the rudder...
At 09:38 AM 8/23/2009, you wrote:



Check out the rudder on the plane part way down this page,,,,,  Gehards from the WC I beleive.....
 
http://www.acro3d.com/public/phpbb3/viewtopic.php?f=19&t=4597&start=105 
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Phil Spelt, Webmaster & Past President, Knox County Radio Control Society, Inc.
       URL: http://www.kcrctn.com
AMA--1294,  Scientific Leader Member, SPA--177
      My URL: http://mywebpages.comcast.net/~chuenkan/
      (865) 435-1476 v  (865) 604-0541 c 



_______________________________________________
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NSRCA-discussion at lists.nsrca.org
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_______________________________________________
NSRCA-discussion mailing list
NSRCA-discussion at lists.nsrca.org
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
--> There are only two types of aircraft -- fighters and targets.

Phil Spelt, Webmaster & Past President, Knox County Radio Control Society, Inc.
       URL: http://www.kcrctn.com
AMA--1294,  Scientific Leader Member, SPA--177
      My URL: http://mywebpages.comcast.net/~chuenkan/
      (865) 435-1476 v  (865) 604-0541 c 
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