Pop surge?

[NutLoose]

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Looks like one to me, you can see the effect at the intake too, watch about 3.15 on.

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[Treble one]

I've seen that and several other F-16 displays over many years NutLoose, and I can't ever recall a trail of flame like that when the jet is using re-heat.


Almost like a permanent dump and burn?

[NutLoose]

Jags used to suffer pop surges at a high angle of dangle low airspeed when carbon partially blocked the pressure sensing tube from the jet pipe, basically the reheat senses a false reading so cuts the fuel supply, it then would sense a drop so dumps excess fuel into the jet pipe to correct it, resulting in an explosion in the jet pipe and a ball of excess burning fuel being ejected, which looks similar to that, it could then repeat. Obviously having a higher pressure in the JP than in the engine was a bad thing and you could surge it / damage it..
on the first film you see like a shock wave by the intake.p when it happens.

But it's like years ago so my brain might be a bit muddled on the principal, though I will tell you, standing a few feet away from it during a run used to nearly cause a change in underwear.

[57mm]

Would occasionally get one during air combat manoeuvring in an F4. Recognised from the cockpit by a loud bang and a flash of reheat from the intake rather than the nozzle......

[Rhino power]

There's clearly an engine afterburner/fuelling problem right from the beginning of the display (and up to the point of the engine 'event'), if you look at bottom of the afterburner plume there is a long, thin, much brighter flame compared to the normal afterburner flame.

-RP

[Tashengurt]

I'm amazed he didn't get told to land.
Anyone who's spent time around fast jets can see that's not right.
Even as a 19 year old rag packer sat on recovery I would've called up ATC then sat back and waited for my 'Good show'.

[Wander00]

Reminds me of the centre engine surge on the Tristar taking off from Mount Pleasant in 1986 - that was interesting to watch.

[Skeleton]

Agree with Tashengurt, it was obvious from the start something was not right with the burner. I saw it right at the start, 3 minutes later the event happens. What was his own ground crew doing? Display supervisor and his team? ATC? The video left me slightly shocked to be honest.

[NutLoose]

If you look at dead on 3.00 you can see the full burner is not lit.

[TEEEJ]

Images of the same F-16 displaying the day before at following thread. Unusual afterburner?

F-16 engine event at Zeltweg (http://forums.airshows.co.uk/viewtopic.php?f=2&t=74643)

Previous day display video. Unusual afterburner? See from 2 mins 43 secs.

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