Sponsor Message:
Aviation Technical / Operations Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
"Devices" Near PT6A Exhaust Stacks  
User currently offlineNorthwest727 From United States of America, joined Jul 2005, 491 posts, RR: 0
Posted (2 years 3 months 12 hours ago) and read 3850 times:

Hello,

I noticed on a King Air 350 recently, that around both exhaust stacks on both engines, had some sort of "devices." These appear to be some kind of aftermarket retrofit, consisting of "strakes"...I assume some kind of vortex generators. I've never seen this on any other PT6A powered aircraft. What are the purpose of these exhaust devices? Some kind of performance enhancement?

I was able to trace the tail number and found some pictures of the aircraft online. I cropped out the right side engine to show these devices here:

Strange devices on PT6A exhaust stacks


Thanks

[Edited 2012-07-24 05:20:49]

2 replies: All unread, jump to last
 
User currently offlineT prop From United States of America, joined Apr 2001, 1029 posts, RR: 1
Reply 1, posted (2 years 3 months 7 hours ago) and read 3722 times:

I've installed those on a King Air, they're part of a kit from Raisbeck Engineering. If I remember, the ones in the picture besides helping with low speed performance, also keep exhaust soot from blackening the rear part of the nacelle.

http://www.raisbeck.com/index.html


User currently offlinenws2002 From United States of America, joined Feb 2008, 899 posts, RR: 0
Reply 2, posted (2 years 3 months 7 hours ago) and read 3719 times:

I think they are Raisbeck composite exhaust stack fairings .

Here's a description from the website:
"Small composite fairings over fronts of exhaust stacks on all P&WC PT6A-powered Beechcraft King Air and Super King Air models; prevent power loss from hot air entering forward cowling and engine inlet and reduce drag by streamlining propeller wake; fairing held in place by camlocks; two 'delta-wing' vortex generators on fairings divert high-energy gases between exhaust and cowling, keeping exhaust soot from accumulating on nacelle and wing."


Top Of Page
Forum Index

Reply To This Topic "Devices" Near PT6A Exhaust Stacks
Username:
No username? Sign up now!
Password: 


Forgot Password? Be reminded.
Remember me on this computer (uses cookies)
  • Tech/Ops related posts only!
  • Not Tech/Ops related? Use the other forums
  • No adverts of any kind. This includes web pages.
  • No hostile language or criticizing of others.
  • Do not post copyright protected material.
  • Use relevant and describing topics.
  • Check if your post already been discussed.
  • Check your spelling!
  • DETAILED RULES
Add Images Add SmiliesPosting Help

Please check your spelling (press "Check Spelling" above)


Similar topics:More similar topics...
Where Can Someone Gain Flight Hours Near MKE? posted Thu Jun 7 2012 13:24:56 by MKE22
Flying Near 'bad' Turbulence? posted Thu Mar 15 2012 00:25:33 by madog
Exhaust Gas Velocity Of Rockets posted Sun Oct 9 2011 01:18:29 by jetmech
Automated Noise Monitoring Systems Near Airports posted Thu Jun 30 2011 14:51:28 by mrskyguy
Near Ground Collision YYC (LH A340 Vs WS 737-600) posted Sat May 14 2011 17:17:44 by Viscount724
PT6A Smoke Cloud On Shutdown? posted Mon Jan 10 2011 11:34:24 by Northwest727
Ugly Thing Near 787 Packs posted Mon Jul 19 2010 07:37:52 by borism
Exhaust Speed At Back Of Turbofan Engine posted Wed Jun 16 2010 03:43:52 by smartt1982
Crashes And Near Misses: Why No Footage Available? posted Mon Jun 7 2010 07:54:08 by alwaysontherun
Explain These Uneven Exhaust Plumes posted Fri May 21 2010 19:18:46 by Fly2HMO

Sponsor Message:
Printer friendly format