Pop surge?
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Pop surge?
Looks like one to me, you can see the effect at the intake too, watch about 3.15 on.
Last edited by NutLoose; 6th Sep 2016 at 19:03.
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?
Almost like a permanent dump and burn?
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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.
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.
Last edited by NutLoose; 6th Sep 2016 at 22:02.
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......
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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.
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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'.
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'.
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.
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If you look at dead on 3.00 you can see the full burner is not lit.
Images of the same F-16 displaying the day before at following thread. Unusual afterburner?
F-16 engine event at Zeltweg
Previous day display video. Unusual afterburner? See from 2 mins 43 secs.
F-16 engine event at Zeltweg
Previous day display video. Unusual afterburner? See from 2 mins 43 secs.
Last edited by TEEEJ; 7th Sep 2016 at 17:56.
