airfoilsguy
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Extra Wing Extension. What Is It For (photo)

Sat Sep 23, 2006 2:26 am

What is that extension on the trailing edge on the Extras for?



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Starlionblue
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RE: Extra Wing Extension. What Is It For (photo)

Sat Sep 23, 2006 2:33 am

The long flat thing is the aileron. It's slightly deflected downwards, giving the illusion of an extension. The little antennalike structure on the trailing edge tip is a visual aid for aerobatics.
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MDorBust
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RE: Extra Wing Extension. What Is It For (photo)

Sat Sep 23, 2006 2:33 am

I was once told that the metal extending from the trailing edge is for aerobatic pilots to use as a horizon referance while conducting manuvers.
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N231YE
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RE: Extra Wing Extension. What Is It For (photo)

Sat Sep 23, 2006 2:41 am

The extension is used as a tool to measure 90º and 45º angles with references to the horizon. Basically, aerobatic pilots, such as Patty Wagstaff, use these devices when they are "maneuvering" (as in stunts).

Quote:
Each wingtip has a sighting device to aid in precision maneuvering.

http://www.nasm.si.edu/research/aero/aircraft/extra260.htm
 
airfoilsguy
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RE: Extra Wing Extension. What Is It For (photo)

Sat Sep 23, 2006 2:47 am

Quoting N231YE (Reply 3):
The extension is used as a tool to measure 90º and 45º angles with references to the horizon

Thats what I was looking for. After hearing it explained it makes perfect sense. Or should I say er type reading it explained.
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HAWK21M
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RE: Extra Wing Extension. What Is It For (photo)

Sat Sep 23, 2006 10:49 pm

Quoting N231YE (Reply 3):

The extension is used as a tool to measure 90º and 45º angles with references to the horizon.

How would that be carried out.
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2H4
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RE: Extra Wing Extension. What Is It For (photo)

Sun Sep 24, 2006 12:21 am




Quoting HAWK21M (Reply 5):
How would that be carried out.

The pilot simply looks to the side, out at the wingtip device, and can align either the 45 or 90 degree bar (and thus, the fuselage) with the horizon. One of the problems with the device is that, on hazy days with no discernable horizon, there is no point of reference, and the device is useless.




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