Go Back   Airline Pilot Central Forums > Career Builder > Technical
Register FAQ Advertising Calendar Search Today's Posts Mark Forums Read

Technical Technical aspects of flying

 

Welcome to Airline Pilot Forums

    Already registered? Login above

OR
 
To take advantage of all the site's features, become a member of
the largest community of airline pilots in the U.S. and beyond.

The advertising to the left will not show if you are a registered user.

Join the Forum

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 03-16-2012, 09:43 AM   #1 (permalink)
Gets Weekends Off
 
DILLA's Avatar
 
Joined APC: Jul 2007
Position: PPL, Engineer
Posts: 123
Default Cessna with a canard

I was out at DPA last week and spotted either a C172 or C182 with a canard installed. Would there be that much of a performance increase with them?
DILLA is offline   Reply With Quote
Advertising above will not show if you are a registered user.
Old 03-16-2012, 10:47 AM   #2 (permalink)
Moderator
 
Cubdriver's Avatar
 
Joined APC: May 2006
Position: ATP, CFI etc.
Posts: 5,484
Default

Picture? I did not know such a thing exists, but at any rate it would have to be a fixed forward stab, not a real canard. If it does exist they would have to trim it for cruise and the only advantage would be unloading the tail stab to reduce the downward force. This would be optimized at forward CG, and if this airplane is used commercially in a cruise mode a lot and is loaded forward CG all the time, then it might produce a small advantage in efficiency. Slightly higher cruise speed, less drag, better range, etc. not a lot. You can get the same deltas comparing performance of a fwd CG loading to an aft loading in an unaltered model. There is also a small drag penalty for additional wetted area with the fwd stab, and some extra weight. That plus cost, and the structural issues are why these are not common. Also degrades stall-spin recovery a bit.
__________________
Turn the heat O-F-F!
Cubdriver is offline   Reply With Quote
Old 03-16-2012, 10:48 AM   #3 (permalink)
Gets Weekends Off
 
biigD's Avatar
 
Joined APC: Oct 2010
Posts: 484
Default

As I understand it, the canard is there to provide better behavior during slow flight for STOL operations.

Check this out:
http://www.katmai-260se.com/features.html
biigD is online now   Reply With Quote
Old 03-16-2012, 10:57 AM   #4 (permalink)
Super Moderator
 
usmc-sgt's Avatar
 
Joined APC: Jun 2006
Posts: 3,217
Default

The Katmai mod has won numerous bush plane "shootouts" in articles I have read. Supposedly it can go head to head with the big contenders while carrying 4 pax and gear.

The plane
http://www.planeandpilotmag.com/airc...e.html?start=1
__________________
Honor, Courage, Commitment
usmc-sgt is offline   Reply With Quote
Old 03-16-2012, 11:19 AM   #5 (permalink)
Moderator
 
Cubdriver's Avatar
 
Joined APC: May 2006
Position: ATP, CFI etc.
Posts: 5,484
Default

That looks like a true canard. They are charging a lot for a slight decrease in stall speed and controllability, $25k for the basic canard. I think I would just get some VGs and glue them on. I guess the argument is it makes the airplane slightly more predictable near stall. But you also take a 5 knot penalty in cruise due to additional wetted area, dirty flow to the tail, and a small hit to useful load.
__________________
Turn the heat O-F-F!

Last edited by Cubdriver; 03-16-2012 at 11:30 AM.
Cubdriver is offline   Reply With Quote
Old 03-16-2012, 11:36 AM   #6 (permalink)
Gets Weekends Off
 
Joined APC: Dec 2007
Position: SNJ-4 Front
Posts: 900
Default

Looks like the old Wren mod:Peterson (Wren) modification of Cessna 182
Dougdrvr is offline   Reply With Quote
Old 03-17-2012, 03:14 AM   #7 (permalink)
Gets Weekends Off
 
Joined APC: Apr 2007
Posts: 556
Default

I have a few hours in a Peterson....it was something....off the ground in no time and FAST.
__________________
http://www.searchk9.net/helitac/harryreasoner.htm
deadstick35 is offline   Reply With Quote
 
 
 

 
Reply
 



« Previous Thread | Next Thread »
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Owning Your Own Airplane (Cessna 210) Imeneo Hangar Talk 16 06-04-2012 01:23 PM
Cessna Production Flight Test & Delivery Cubdriver Hiring News 5 03-14-2012 01:03 PM
Cessna L-19E Crash Video Moose Hangar Talk 8 08-30-2009 09:00 PM
NTSB: Mesa CRJ700 narrowly avoids Cessna single on Allentown runway MDT06 Regional 46 09-26-2008 06:59 AM
Chinese Cessna joel payne Hangar Talk 10 12-07-2007 05:36 PM


All times are GMT -8. The time now is 05:02 PM.


vBulletin® v3.8.6, Copyright ©2000-2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Copyright 2000 - 2012 Internet Brands, Inc.