F-35 and Airshows

Discuss the F-35 Lightning II
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wrightwing

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Unread post11 Jan 2019, 02:41

spazsinbad wrote:You may well know the F-35A is rated to 9G with full internal fuel and weapons and Mach 1.6 top speed - any questions?

Now that would be an excellent airshow selling point. Load up with full fuel, and 5,000lbs of inert ordnance, and perform a dazzling display of power loops, pedal turns, minimum radius, vertical climbs, etc.... and then open the weapon bay doors, for a slow speed fly by.
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quicksilver

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Unread post11 Jan 2019, 04:42

It appeared more like a practice of certain elements rather than a rehearsal. There was some extended repositioning that took the jet away from the crowd line/show center for more time than usual. Sometimes that’s necessary for the pilot lest he or she has to fly around mostly under some kind of G for nearly 10 or 15 minutes.

Hmmm...one wonders what Pierre Sprey has been doing lately.
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mixelflick

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Unread post11 Jan 2019, 13:06

wrightwing wrote:Here's an even closer video, from rehearsals.

https://m.facebook.com/story.php?story_ ... 7895604049


That.... was incredible.

Especially what it did AFTER the power loop. And the big one... it didn't appear to lose much altitude, while reversing direction. Thrust vector maneuvers, without the thrust vectoring.

I'm sure Sprey wants to crawl under a rock right now..
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gta4

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Unread post11 Jan 2019, 15:11

There are already videos that quote Pierre Sprey's "cant climb can't turn can't run" and show something otherwise:

https://youtu.be/6Kg-ztkPDok
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lbk000

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Unread post12 Jan 2019, 20:06

For me, the most impressive maneuver was actually the full flat circle into the vertical at around 5:30 or so. This is a transition that really showcases the aircraft's superb energy characteristics, it's like watching a guy go from holding his breath under water to immediately playing a ditty on the trumpet all in the same breath.
The F-35 does it very comfortably and it is fantastic to see.
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charlielima223

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Unread post13 Jan 2019, 01:49

Old video but relevant to the topic...
Pay attention to what he says at the very end of this video



That was before all the actual flight testing. From my understanding that was made by computer modeling and simulations to predict the F-35's flight characteristics. I would like to see if the B and C can do something very close but within their own flight envelope.
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element1loop

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Unread post16 Jan 2019, 09:31

sprstdlyscottsmn wrote:That low speed pass though!


I just had a close look at that pass and came to the conclusion the pilot was not using afterburner on the climb out @ ~45 degrees nose-up, accelerating. In the other parts of the video the afterburner makes copious and plainly visible photons in the dim light conditions when it is being used, but none seen in that part of the video. I looked up some of my graphs and the jet should not have been able to do that on the standard figures. Apparently the installed dynamic thrust is quite a lot higher (yeah, duh).

For example, at ~25% fuel load remaining, the dry dynamic thrust would have to be at least 35,000 lb to get anything like that sort of acceleration in the climb out.

See at 13:00 min mark (lands it at ~17:00 mins)
https://youtu.be/RRW0sLsB0KY
Accel + Alt + VLO + DAS + MDF + Radial Distance = LIFE . . . Always choose Stealth
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mixelflick

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Unread post16 Jan 2019, 14:37

Pretty amazing. Can't wait to see the final routine. Hoping for lots of power loops, pedal turns and those awesome instantaneous turns, which look just gut wrenching on the pilot.

It's really coming into its own now. First combat use (USMC and Israel), operational with the Royal Navy, Paris display, first dedicated air demo team, price dropping. And you know it's only going to get better. Soon, LM will have more countries beating down its door.

They have built a better mouse trap, there is no question..
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