Engine Flame

"Tailpipe torching" is what it's called. Sometimes happens (albeit extraordinarily rare) during engine starts or compressor stall conditions.

But I might be wrong!
 
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Today's A.net most popular photo shows a 735 with an engine spouting flames from the left engine. What causes this?

A.net photos

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Oh, thats the new 737-1000... It has afterburners for better climb performance! /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/insane.gif /ubbthreads/images/graemlins/cwm27.gif
 
I never realized just how butt-ugly a 737 is from behind until I looked at that picture.

This would be a good picture for a caption contest.

"We're going down in flames!!! Oh wait, we're already on the ground"
 
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This would be a good picture for a caption contest.

"We're going down in flames!!! Oh wait, we're already on the ground"

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How about a caption bubble out the Captain's side saying "Damn those bean burrito's from 7-11!"
 
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Today's A.net most popular photo shows a 735 with an engine spouting flames from the left engine. What causes this?

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I'm sure this isn't the case in the photo, but this really did happen to me.

In the Marines we once had a new 2nd Lt siting in the cockpit durring the engine start. He was due to depart for Pensacola in a few weeks and he was getting familiar with the Air Wing

Well, the turbine spun up and he moved the condition lever to introduce fuel. Standing out front by the fire bottles we saw a huge mist come out of the exaust. /ubbthreads/images/graemlins/blush.gif

Our hero realized he forgot to turn the ignition on. So before the PIC can react to stop him, he reaches over and flicks the switch. /ubbthreads/images/graemlins/shocked.gif

In case you've never see a 40-50 foot fireball, it's quite a sight to behold. The PIC, Crash Crew, Maint Officer and our CO didn't think it was nearly as impresive as I did.

Luckilly no one was hurt, and except for some scorched paint the helo was fine.

That fledgling naval aviator spent the next two weeks in the powerplant shop helping them inspect the Hot section, and learning the importance of following directions.
 
We had an ignitor problem on a 737-700 my last day at SWA. It's strange seeing a cloud coming from the back of the engine. I'm pushing the plane back, look over and see this cloud. So, I tell the captain he might want to shut that one down. They let us disconnect while they tried a couple of things, but they wound up taxiing back into the gate on one engine. Plane sat there for about two hours, most of which came from the ground hold put on 'em because of BWI....
 
I'm amazed at how consistant "new" C-12 pilots are with aborting their first night engine start because they think they are experiencing a HOT start. The exhuast stack is right outside the pilot's window and it sometimes can shoot out a nice little flame, it does this during the day but they never see it. I just let em go and learn thier procedures, its a vivid learning lesson. My first question is ... so how hot was the ITT? ... uh it was normal but I saw this huge flame and I thought /ubbthreads/images/graemlins/blush.gif ... yeah buddy you thought.

Jim
 
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