What’s goin on here? Fuel dump?

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agha0013@reddit

yup.

not sure about afterburners, you likely wouldn't have them going while dumping fuel unless you want to make a bit of a dramatic mess, and dump-and-burns are (i think) banned in the US.

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TBCoR@reddit (OP)

I’m not an expert. But he was haulin ass on the straight aways.

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MikhailCompo@reddit

Why do Americans feel the need to add the superfluous word 'aways' after the word 'straight'.

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harambe_did911@reddit

"He was hauling ass on the straight" ?

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Illinikek@reddit

Straight is a descriptor and a direction. Straight away refers specifically to a straight portion of a track or route.

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makatakz@reddit

Except it’s one word: “straightaway.” Your autocorrect might have done that to you.

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Steje8@reddit

The "benefit of doubt" was a nice read. Thanks

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KiwieeiwiK@reddit

Away is also a descriptor and a direction

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PartTime13adass@reddit

We use American slang just to piss off idiot limeys. Aussies and Kiwis do the same with their own slang.

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LA_rent_Aficionado@reddit

Because a straight is a geographic feature that someone else would nitpick

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EVASIVE_rabbi@reddit

🇺🇲🦅 Because We Don't Have Healthcare & Excel At Putting Warheads On Foreheads 🦅🇺🇲

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iVouldnt@reddit

BecauseNASCAR! 🤠🐮🐄🥩

But it should be 'straightaway.' Used as an adjective, straightaway means "straight forward, without turn or curve,"

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Booleano101@reddit

Vapor de agua . Sois una panda de conspiran picos

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777XSuperHornet@reddit

No - it was dumping fuel. That was confirmed.

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Booleano101@reddit

Ya claro. Todo el mundo dice que las estelas son de vapor de agua ,pero ahora son fuel o aerosoles . Conspiranoicos

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agha0013@reddit

vapor trails from wing tips aren't that solid or long lasting and typically don't come from the plane when it's flight straight and level.

engine vapor trails would come from the engines and not this low

that, as OP later confirmed, is fuel coming from the F-15's fuel dumping port on the tip of the right wing.

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dc469@reddit

Why are dump and burns banned? I would think that the burned product is less environmentally damaging?

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yabucek@reddit

Genuinely asking, how? Is it possible for the flame front to catch up to the aircraft?

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TreeFhiddy@reddit

Sorry if that came out wrong. Just meant it was purely for display purposes and caused undue risk to airframe and other aircraft basically so they got rid of it. Wasn't environmental concerns.

F111 Final Dump & Burn - Williamtown Airshow 2010

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kn0mthis@reddit

That's the most 'murica thing I've seen all day... And it was AWESOME. 😁😅

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moofie74@reddit

Australia gets pretty ‘Murica sometimes.

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TreeFhiddy@reddit

eh, American made aircraft. Count it?

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makatakz@reddit

Australian Air Force appreciates your support, no doubt.

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TreeFhiddy@reddit

Dump and burn was always a big hit down under

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AUniquePerspective@reddit

That move got Wesley's friend banned from Starfleet Academy.

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1776cookies@reddit

I've never seen that, and that is awesome

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TreeFhiddy@reddit

F-111 Pilot Explains the Dump N Burn Feature #aviation #raaf #airforce #fighterjet #f111 #besnappy

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NotThatMat@reddit

Yeah, I imagine it would sound quite a bit like that.

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dc469@reddit

I'm not familiar with it, I'm guessing the flame can follow the path back to the fuel line and cause damage to the aircraft?

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Elect-Frank-Sobotka@reddit

That episode of TNG when Wesley Crusher killed his classmate

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No_Panic4177@reddit

"hey how come we can't light the gas on fire as we spew it out of the multi million dollar aircraft?"

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shortname_4481@reddit

What is the difference between that and the afterburner?

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ukulele87@reddit

Its not, its exactly the same thing obviously.

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shortname_4481@reddit

The only difference between it and afterburner is that the afterburner combusts fuel in the chamber.

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ukulele87@reddit

Yeah basically nothing, its the same.

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popups4life@reddit

Just go faster than the speed of fire and you'll be good!

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UAintMyFriendPalooka@reddit

I mean…I don’t see why not. Go for it.

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If you have a big enough fuel leak from another part of the aircraft, fuel leaks on the F-111 were common. The flame would travel up the vapor trail and ignite the fuel tank in an explosive way. Take a wild stab in the dark how this was discovered.

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F14Scott@reddit

In my jet, dumping in AB was prohibited by our operating procedures, probably for theoretical danger of a fire. It was the same for F/A-18s, at the time. However, I know of times it happened in both airframes that resulted in big streams of ignition with no resultant damage to the aircrafts.

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SnooCupcakes1514@reddit

There are studies that suggest the exact opposite. At least that is what we, tanker pilots, say. I dumped millions of lbs of gas in my 14 years of flying tankers.

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Strega007@reddit

I have tried to light the stream of fuel with burner in the Eagle numerous times and can't make it.

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UnderstandingTime162@reddit

The operating unit needs to get the same allotment for fuel in FY2027 as in FY2026!

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budoucnost@reddit

Why on one side? Do the not have two dumpers like commercial airliners?

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UnderstandingTime162@reddit

Wrong answers. Early F-15s dumped from both sides. However, it introduced a latent failure mode with a failed open tank pressure regulator. An early F-15 burst its internal/integral fuel tanks because of it, and it was lucky to get back on the ground in one piece. Retrofits happened to the aircraft that were already built, and a design change happened for new-build aircraft.

Short answer, it’s so that that the tanks can still adequately “breathe”, including for failure cases, while dumping fuel.

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danit0ba94@reddit

No real need to have two on a little eagle. (It's not that little but you know what I mean)

Not nearly as much fuel that has to be dumped as, say, a 787.

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Velosprints@reddit

Landing gear must be fragile! Vipers have no dump.

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Kardinal@reddit

F-15s are loud as hell, they don't need to be in burner for that. And you would probably be able to see the exhaust being red if they were burning too.

If they're having gear issues then yes, they have a reason to lighten the load as much as possible before attempting landing. Thus, fuel dump.

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TBCoR@reddit (OP)

Yup. Just loud AF lol

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Kardinal@reddit

Twin military jets are like that.

Loudest plane I've ever heard is still the Raptor. Dear god

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Gillbilly69@reddit

F35B is a LOT louder than an F22

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Adviderisj@reddit

You mustn't have heard an F35

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makatakz@reddit

I’ve heard them all. B-1 still holds the crown. Sounds like the sky is being split open.

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Jpp9977@reddit

I live near Kingsley Field and we've had F-15s for years and now we are getting F35s. They are incredibly loud when oriented away from you, louder than the F15s.

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lichesschessanalyst@reddit

I lived just off of Homedale for a while and loved that sound. I miss it.

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Jpp9977@reddit

Watched the airshow from a rooftop on Homedale! I worked on Washburn for a bit and got to see a lot of activity at the airfield. It really is cool to see regularly. I love it here.

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harambe_did911@reddit

Work space was 2 decks below the verticle landing area for F-35Bs on the Wasp. you really just had to stop talking until it was over lol

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RaptorGanoe@reddit

I was about to say this! I live next to Langley so my kids are used to F-22 and F/A-18s when we go to Virginia Beach. But let an F-35 nearby and they are hollering for their earphones

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Bearha1r@reddit

Just bought some decent cans for my kids. We're going to Cosford in a couple of weeks and they have an F35-B flying.

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TBCoR@reddit (OP)

Love it.

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Farmboy1959@reddit

Washington here. Up in the mountains and E6Bs training fly over fast and low. From peaceful quiet afternoon to holy shit…. They are actually gone before you hear them…. Camping on a lake and they are low enough to disturb the lake

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