Sponsor Message:
Aviation Technical / Operations Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Interesting Compressor Surge Picture  
User currently offlineCorey07850 From United States of America, joined Feb 2004, 2525 posts, RR: 5
Posted (8 years 6 months 1 week 1 day 14 hours ago) and read 4385 times:

The image is a little big for the forum, so here's a direct link...Pretty neat shot if you ask me


http://i2.photobucket.com/albums/y1/corey07850/Picture1.jpg

6 replies: All unread, jump to last
 
User currently offlineSATL382G From , joined Dec 1969, posts, RR:
Reply 1, posted (8 years 6 months 1 week 1 day 13 hours ago) and read 4356 times:

Looks like the phabulous phantom has some phire phlowing out the phront end!!  

Interesting pix.

Odd though that the fire does not illuminate the forward fuselage or reflect off the forward canopy.

[Edited 2005-10-12 03:24:32]

User currently offlineDC8FriendShip From United States of America, joined Apr 2005, 242 posts, RR: 3
Reply 2, posted (8 years 5 months 4 weeks ago) and read 3870 times:

Interesting. I didn't know compressor surges shot flames out the front. Seems like the engine would have a massive overtemp condition.


Come fly the Friendly Skies of United
User currently offlineAirfoilsguy From , joined Dec 1969, posts, RR:
Reply 3, posted (8 years 5 months 3 weeks 6 days 18 hours ago) and read 3771 times:

I hate to say it but the photo looks like a fake. First off there is no fire coming out the exhaust. Second, in order for that much flame to blow out the intake at speed you would need a massive explosion, in the end bringing down the plane.

User currently offlineFr8mech From United States of America, joined Sep 2005, 5095 posts, RR: 12
Reply 4, posted (8 years 5 months 3 weeks 6 days 18 hours ago) and read 3757 times:

I won't comment as to whether this photo is a fake or not, but flames out the front of engine are common during a stall, especially low-bypass engines.

I've seen of plenty of times on the old JT8's installed on the B727. Made a couple stall myself.

The flame is not the result of an explosion, it is the result of the flame front traveling forward through the engine after the airflow through/around the compressor has been disturbed.



When seconds count...the police are minutes away. Never leave your cave without your club.
User currently offlineDash 80 From United States of America, joined Nov 2001, 309 posts, RR: 2
Reply 5, posted (8 years 5 months 3 weeks 6 days 17 hours ago) and read 3748 times:

Fr8mech is right. The so called "stall" of airflow through the compressor allows hot gasses from the combustor to travel right out the front of the engine. A normal stable flow of air makes the gasses travel out through the rear of the engine. The overtemp problem is an issue as these conditions were not intended for the compressor and can cause suitable damage to the engine as a whole.

Steve



...where the rubber hits the runway...
User currently offlineSLCPilot From United States of America, joined Aug 2003, 572 posts, RR: 3
Reply 6, posted (8 years 5 months 3 weeks 5 days 18 hours ago) and read 3542 times:

Here's another vote for the picture not being "fake". The following is a quote from a former Thunderbird pilot....


Now, F-100 pilots are accustomed to loud noises. Even in the best of circumstances, the afterburner can ' bang ' pretty hard when it lights off. It's also fairly common for the engine compressor to stall, sometimes forcing a violent cough of rejected air back up the intake. Flame belches out the oval nose--which will definitely wake you up at night--and the shock can kick your feet off the rudder pedals. Any F-100 pilot who hears a loud " BANG ! " automatically thinks, "compressor stall," and unloads the jet to get air traveling down the intake in the right direction.

SO, INSTINCTIVELY, the explosion causes me to relax stick-pressure to unload the airplane. By now, I'm fully into one of those fast-forward mental exercises where seasons compress into seconds, the leaves changing color while you watch. I move the stick forward lethargically, even having time to think, "That's no compressor stall ! ! "



Anyway, you can read the full account of the F-100 beakup here if you want.

http://www.contrailsmagazine.com/1.1/tbird.html

SLCPilot



I don't like to be fueled by anger, I don't like to be fooled by lust...
Top Of Page
Forum Index

Reply To This Topic Interesting Compressor Surge Picture
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...
Compressor Surge posted Tue Nov 22 2005 17:17:22 by Neilking
Thrust Levers Out Of Sync In Picture? posted Sat Nov 18 2006 06:25:35 by Jawed
Compressor / Turbine Disc Cross Sectional Shape. posted Sun Nov 5 2006 09:39:48 by JetMech
Question About This Picture. posted Sun Oct 15 2006 21:38:07 by Dl757md
C-17 Wake Turbulence Picture posted Tue Sep 5 2006 12:06:55 by Zarniwoop
Wierd Flight Path - Picture posted Thu Jul 13 2006 10:09:37 by Darrenthe747
787 Electric-Compressor Pressurization posted Wed Jun 7 2006 18:48:41 by Redcordes
Interesting File. Check It Out. posted Mon May 15 2006 17:28:31 by Wardialer
Interesting Commentary About NW. posted Fri Feb 10 2006 18:08:30 by MX757
Ridiculous But Interesting Hypothetical posted Fri Jan 27 2006 21:35:21 by Sleekjet

Sponsor Message:
Printer friendly format