F-35- Is this possible? Slow speed loop, page 1

Is this even real or possible in a F35?

Someone sent me this, and to me it seems improbable to fly thru your own jet-wash especially in a single engine
jet. You might destroy a $70M airplane and dent the flight deck.
Kinda cool tho!

What do you guys think?

reply to post by blackrabbit1

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I thought it might be fake. but I thought you guys would know instantly. You did!

Thanks

reply to post by bagari

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Not only is the stunt roll too far fetched, but so is the take off.

The F-35B is *not* a VTOL or even a V/STOL aircraft (though the X-35B was).

It is purely a STOVL aircraft (Short Take Off Vertical Landing) and there was even some concern that its 'STO' was not short enough for the UK carriers. It could not possibly take off from the current RN ships and for its recent political jaunt up the river Thames it was winched on and off the ship by a crane (a mock up was used). It will, I'm sure, be fine for the new ships though which are much bigger, but please don't kid yourself that it can do VTO, it cannot.

To John Phoenix though, yes, it does 'move the back jet'. It is a two-position nozzle that points either straight back or straight down and is of use only for landing, being uniquely limited for thrust vectoring as even the F-22 and X-32 plus all the Russian vectoring types from Sukhoi and MiG have benefits in forward flight (manouvering) and take off. As of course does the Harrier.

I think the F-35 is going to be great, but that limitation on the vector nozzle does trouble me.

[edit on 18-12-2009 by waynos]

reply to post by Zeptepi

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You questiond the possibility of such a maneuver can be done.

The awnser is: No.

Gravity should have kicked in the moment that downward thrust would be "gone". Instead it seems that it pivots around a magical pole with steel wire to the nose of the AC attached.

BTW: BF2 sucks! too much lag on the servers and had ridiculous system demands when it came out.

reply to post by James R. Hawkwood

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Yes, its just too damn heavy.

It was concluded very early on (even at the time of BAe's ASTOVL studies) that asking a supersonic combat aircraft with a useful range and payload to perform VTO's was unnecessary, expensive and complicated.

The early mk.1 Harrier was limited to 5,000lb inc fuel for VTO but could operate in STO mode at 9,000lb. The Harrier GR.5/AV-8B entered service with no ability to perform VTO's with any kind of useful load due to it being much heavier than the earlier model (it is also about 80mph slower due to higher drag).

Improvements to later versions of the Pegasus increased thrust to the point where VTO was possible again, but in reality it is never used.

Indeed the only reason the X-35B and its Boeing rival were required to demonstrate VTO was because the Russians had done it with the Yak 41 (The French had also done it in the 1960's with the Mirage IIIV but this seems to be glossed over).

The F-35B could be made to perform a VTO, at a push and *IF* engine thrust can be increased by about 10%, but it would'nt be able to carry any ordnance or fly very far.

I think the far more serious defect is that the nozzle cannot be used for manouvering. I mean, how ridiculous is that? The F-35B basically has an automated process that means whenver the nozzle is rotated, the lift fan spools up, the wheels come down and it lands. That is its sole function, which seems a waste.

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