Search the archive:
YaBB - Yet another Bulletin Board
 
   
 
Page Index Toggle Pages: 1
Send Topic Print
More questions about feathering (Read 192 times)
Jul 22nd, 2004 at 7:48pm

jordonj   Offline
Colonel
Loose my license...WHAT
license?!
Michigan

Gender: male
Posts: 5601
*****
 
I have noticed somthing about feathering the Lancair Legacy.  When I try to feather the props the plane slows down, is that supposed to happen.

Also, I can't seem to go very fast at high altitudes...

Is this just the Legacy or is that just how planes work?
 

My first flight in a 172 on August 20, 2004&&...&&&&Doing the right thing is more important than doing the thing right. (P. Drucker) &&&&When all think alike, then no one is thinking. (Walter Lippmann)&&&&Boredom's the problem. And how do you beat Boredom? Adventure!!!&&&&Tyler: You-You'll remember my position, won't you?&&&&Rosie: Sure! Stop by for a drink sometime!&&&&Tyler: Wait! Wait! What is my position?&&&&Rosie: Ehhhh...beats the hell outta me! I just hope I can find my way back home!
IP Logged
 
Reply #1 - Jul 22nd, 2004 at 8:09pm

Stormtropper   Ex Member
Blueballed...!

Gender: male
*****
 
LOL.....................

When you feather your prop, if I'm not mistaken, you disconnect your prop from the engine, and when your up high, make sure you got your mixtures set right, and yes, you can't go as fast, cuz theres just less air for the prop to bite from

Jeff
 
Arizona State University&&Viva la party!
&&&&...
&&&&
IP Logged
 
Reply #2 - Jul 22nd, 2004 at 8:51pm

Nexus   Offline
Colonel
The greater of two evils...

Gender: male
Posts: 3282
*****
 
Doesn't feathering mean you change the angle of the prop blades?
If so, of course you'll lose speed when you feather, since the pitch angle in your case  probably is changed to a lesser efficient one.

But then again, I'm really no prop-nut  Smiley
 
IP Logged
 
Reply #3 - Jul 22nd, 2004 at 9:14pm

dave3cu   Offline
Colonel
Procrastinate now, don't
put it off.
3CU, Northern Wisconsin, USA

Gender: male
Posts: 3077
*****
 
Believe that 'feathering' is pitching the leading edge of the prop straight forward, usually in the case of engine failure, so that it cuts thru the air rather than inducing drag that a normal pitch, unpowered prop would produce..

Cheers,
Dave


But of course, I could be wrong.. Smiley ..and according to the wife, usually am.  Tongue
 

At that time [1909] the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation.          Igor Sikorsky

I intend to live forever....so far, so good.         Steven Wright

You know....you can just rip up a to-do list.
IP Logged
 
Reply #4 - Jul 22nd, 2004 at 9:16pm

jordonj   Offline
Colonel
Loose my license...WHAT
license?!
Michigan

Gender: male
Posts: 5601
*****
 
Quote:
LOL.....................

When you feather your prop, if I'm not mistaken, you disconnect your prop from the engine, and when your up high, make sure you got your mixtures set right, and yes, you can't go as fast, cuz theres just less air for the prop to bite from

Jeff


Makes sense...

I'm flying cross country using a Lancair Legacy (cause there's no way I can afford a real one).  Sad

Anyway I just flew from Las Vegas to Monterey, CA.  I was at 18000 feet and I had to keep the throttle and feathering all the way in to maintain airspeed and altitude after finding the trim sweet spot (the LL is a tricky plane to trim).  The fastest I was able to go was about 160-107 KIAS.
 

My first flight in a 172 on August 20, 2004&&...&&&&Doing the right thing is more important than doing the thing right. (P. Drucker) &&&&When all think alike, then no one is thinking. (Walter Lippmann)&&&&Boredom's the problem. And how do you beat Boredom? Adventure!!!&&&&Tyler: You-You'll remember my position, won't you?&&&&Rosie: Sure! Stop by for a drink sometime!&&&&Tyler: Wait! Wait! What is my position?&&&&Rosie: Ehhhh...beats the hell outta me! I just hope I can find my way back home!
IP Logged
 
Page Index Toggle Pages: 1
Send Topic Print