Catastrophic Jet Engine Failure In A Test Cell.

thats why they cant have squatters living on the airport tarmac lol

This happened at the Test Cell on Kadena AB in Okinawa. The cause was a 3rd stage disk failure. I know the guy that was running it...and I worked there.

By current regulations you can only be inside the cell if the engine is running at idle.

So I suspect the guy leaves and they add power and then it explodes.

I doubt the pressere at engine oulet exceeded one at inlet in this case - the nozzle is allmost completely closed.

And it does mix secondary bypass air "cool air" with exhaust gas air...

according to the tech data on this motor PW F100-100 it's called an Augmentor :)

lejink: Generally all the prototype components are tested individually with the 100k cycle component tests, then after all the components designs pass the component tests, then they are assembled and tested as assemblies for 100k cycles. The length between cycles is usually determined by temperature and can vary because of mass and environmental factors.

lejink: Actually it is thermal shock/heat expansion in combination with structural loads stressing that can cause most wear and fatigue. Most engines and parts are subjected to tests that simulate 100,000 cycles of start, Max power and heat up, shut down and cool down cycles. It is possible to simulate several years of fatigue fairly accurate in a few weeks or months. It is very expensive but in most cases it is required for US or international aircraft airline and military certification.

just curious how engine makers test how 2 optimize longevity on an engine. like how long should a pilot allow the engine 2 cool after a flight 2 keep the engine in good condition, it seems like that would be a difficult test since u would have to test several engines over a long time. no?

augmentors are used on pulse jets to make them more eficient. by mixng cool air with superheated exhaust gasses. the engine in the vid didnot have one. afterburner is probably the word you where after...

go at throttle up

The whole point of having an afterburner is to increase mass flow out of the nozzle to increase the thrust. The variable nozzle is used such that the engine outlet pressure is maintained below the turbine inlet pressure. Otherwise, the engine backfires (known as surging).

It appears that an engine surge is the cause behind this engine blowing up.

KUFULEE: That's why dangerous tests should be done in a hardened test cell or at a remote region with people and recording equipment in a bunker.

The tests are done for several reasons: like to get a better idea of how much abuse an engine can take, and as a safety test to evaluate the odds of containment (and analyze the amount of collateral damage).

Sorry I accidentally deleted your post of questions.

id say it speeded up 2 fast kabooom
!

LOL

Probably not?