Fighter Jet Engine Afterburner Test

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J79 with afterburner at the S&S Turbines open-air test cell in Ft. St. John B.C.
Taken from a Kfir fighter, after it had suffered damage.
The compressor rotor was destroyed by FOD (foreign object debris) ingestion, and was completely replaced.

This is the same engine as that in the F-104, F-4, B-58, and some early F-16s.

The "smoke" you see coming from the engine at full power/afterburner is not smoke, but unburnt fuel. The afterburner in these shots is spraying fuel into the jetpipe, but the igniter in not functioning. What you see is 50 gallons per minute of jet fuel being blown out the nozzle.

Later shots show the afterburner functioning.

Comments are welcome, and questions will be answered

Channel: Education
Uploaded: October 7, 2007 at 11:13 am
Author: AgentJayZ

Length: 00:03:35
Rating: 4.71
Views: 112958

Tags: Jet Turbine Afterburner Reheat Kfir J79 S&S Turbines F-104 F-4

Video Comments:
aruju01 (January 7, 2009 at 10:13 am)
Kfir engine, built in the early 1980's. J79's trace their lineage back to the mid 1950's. They still have the best throttle response of any fighter engine before, or since.
highdriver100 (January 6, 2009 at 2:17 am)
i know this might be an odd guestion but how old is that engine
random234 (January 4, 2009 at 9:09 pm)
barbeque, anyone?
bigsuey (December 31, 2008 at 10:38 pm)
now all they need to is strap that baby to a skateboard.
WorldStove (December 6, 2008 at 10:20 pm)
now that's a good snow blower!
Zerga2000 (November 29, 2008 at 12:05 am)
what's the name of that engine ? and for witch plane ?
AgentJayZ (November 29, 2008 at 10:27 am)
The information you seek is looking right at you.

Look up a bit and to the right.

Both the title description and the "tags" list contain the answers to your questions.
69stubby69 (November 19, 2008 at 8:08 am)
What is the RPM Range on this engine
AgentJayZ (November 19, 2008 at 9:06 am)
The engine is able to burn fuel at 2,000 rpm.
It is helped by the starter up to about 3,500 rpm, at which point it can gain revs under its own power.
It idles, making no power at about 5000 rpm.
Full power is developed at 7200 rpm.
The afterburner can be engaged at full power, and since the fuel is introduced and burned downstream of the turbine, the rpms do not increase.
mtleverett (November 18, 2008 at 10:56 am)
just after i posted the vid as a responce i read that you saw it. i also have a good stall one too.