Tech Log The very best in practical technical discussion on the web

Stall vane

Old 28th Aug 2010, 01:03
  #1 (permalink)  
Thread Starter
 
Join Date: May 2006
Location: Here, there and everywhere
Posts: 224
Likes: 0
Received 0 Likes on 0 Posts
Question Stall vane

Hi,

Earlier today while discussing Citation CJ3 stall characteristics we ended up realising that almost all aircraft we manage to recall (mostly single/twin engine props) have the stall warning vane, or the stall warning system for that matters, located at the left wing leading edge.

Off course we could not find a logical reason for that, besides, convenience, coincidence or perhaps some old standard that was kept over the years.

Could someone shed some light on this?

Cheers
BF
Broomstick Flier is offline  
Old 28th Aug 2010, 03:55
  #2 (permalink)  
 
Join Date: Jul 2007
Location: Scotland
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
It doesn't look right does it?
polarbearjim is offline  
Old 28th Aug 2010, 05:35
  #3 (permalink)  
 
Join Date: Aug 2009
Location: Bozeman, MT
Age: 64
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
Maybe something to do with the direction of prop rotation?
skylimey is offline  
Old 28th Aug 2010, 09:32
  #4 (permalink)  
 
Join Date: Apr 2008
Location: Singapore
Posts: 33
Received 0 Likes on 0 Posts
Plumbing?

Shortest path for the plumbing to blast the warning into PIC's ear?
martynj3 is offline  
Old 28th Aug 2010, 17:51
  #5 (permalink)  
 
Join Date: Aug 1998
Location: Ex-pat Aussie in the UK
Posts: 5,769
Received 102 Likes on 48 Posts
The airspeed indicator (before pitot tubes) used to be on the left for the pilot to see it:

Checkboard is offline  
Old 28th Aug 2010, 19:41
  #6 (permalink)  
 
Join Date: Apr 2007
Location: Here, there, everywhere
Posts: 251
Likes: 0
Received 0 Likes on 0 Posts
DHC8 400 has the AOA sensor on the starboard side.

Never thought about it before, but all other types I have flown have it on the left hand side.
Love_joy is offline  
Old 29th Aug 2010, 08:13
  #7 (permalink)  
 
Join Date: Mar 2008
Location: Here & there
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
I would of thought its to allow the P1 a better view to check for ice build up or fod damage etc should it start playing up.

All single system citations have the probe/vane on the STB fus' just behind the cockpit area. Dual systems have another probe on the portside between cockpit and main door.
orion1210 is offline  
Old 29th Aug 2010, 09:38
  #8 (permalink)  
 
Join Date: Jan 2004
Location: Here and there
Posts: 3,087
Received 14 Likes on 11 Posts
DHC8 400 has the AOA sensor on the starboard side.
You'll probably find one on the port side too if you have a look.
AerocatS2A is offline  
Old 29th Aug 2010, 16:19
  #9 (permalink)  
Thread Starter
 
Join Date: May 2006
Location: Here, there and everywhere
Posts: 224
Likes: 0
Received 0 Likes on 0 Posts
Now that is an interesting arrangement Checkboard.
Which aircraft is that?

Cheers
BF
Broomstick Flier is offline  
Old 29th Aug 2010, 20:26
  #10 (permalink)  
 
Join Date: Apr 2007
Location: Here, there, everywhere
Posts: 251
Likes: 0
Received 0 Likes on 0 Posts
You'll probably find one on the port side too if you have a look
Sure enough!
Love_joy is offline  
Old 30th Aug 2010, 12:02
  #11 (permalink)  
 
Join Date: Jan 2004
Location: Here and there
Posts: 3,087
Received 14 Likes on 11 Posts
Now that is an interesting arrangement Checkboard.
Which aircraft is that?
I'm sure there are other aircraft that have this kind of ASI but the only I've seen it on has been the Tiger Moth. The picture is consistent with a Tiger Moth but it might be something else. Not all Tiger's have this kind of air-speed indicator, all of the ones I've actually flown have had a pitot tube and a pressure ASI instead.
AerocatS2A is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.