Lockheed Martin loops Hercules at Farnborough 2018
I don't own this space under my name. I should have leased it while I still could
Did not some Marine Corps pilots reduce a new airframe to scrap doing something similar? Iirc, it was a gunship version, so the bill was steeper than for a normal transport.
Guess for a pilot, it is always tempting to try something similar, but stuff happens...
Guess for a pilot, it is always tempting to try something similar, but stuff happens...
Why are you blaming the Marines for an Air Force mishap?
Did not some Marine Corps pilots reduce a new airframe to scrap doing something similar? Iirc, it was a gunship version, so the bill was steeper than for a normal transport.
Guess for a pilot, it is always tempting to try something similar, but stuff happens...
My bad. The Marines were not the guilty party, but rather the USAF.
Guess for a pilot, it is always tempting to try something similar, but stuff happens...
My bad. The Marines were not the guilty party, but rather the USAF.
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Saw still pics of a 707 being barrel-rolled by a Boeing test pilot donkey's years ago. As with the C-130 loop, if he kept a steady +1G all the way round, should cause no extra stress on the frame., surely? .... The Pax (if any) might not like it, much, though !
I'm guessing at +2.5 (limit was +3.25 ish from (dim) memory) at the bottom and initiation, with a tad over 1 at the top (although the C-130 is stressed for a smidge of negative...again -0.75 I think).
Loop is perfectly achievable within airframe limits, assuming aircraft was within Vno1 table..which it would be when empty of freight....
We used to use a bit of <1g when trying to get the cargo door locked up in preparation for wedge loads (and the UK C-130s only had a single hydraulic jack on that door).......as many will remember......and is the source of my username....
Loop is perfectly achievable within airframe limits, assuming aircraft was within Vno1 table..which it would be when empty of freight....
We used to use a bit of <1g when trying to get the cargo door locked up in preparation for wedge loads (and the UK C-130s only had a single hydraulic jack on that door).......as many will remember......and is the source of my username....
Last edited by bunta130; 18th Jul 2018 at 20:13.
Memories of the C-130J Project Structures meetings at Marietta came flooding back, with a chill down my spine to boot, watching that video. It was with some justification (and a great deal of respect) that the Farnborough structures expert was given the nickname Rottweiler. She didn't half keep the Lockheed chaps (most of whom spoke with Yorkshire accents) honest.
By contrast, those of us at RIAT this year expecting the usual rolls and loop from the RSV (Italian Test Centre) C27J were somewhat disappointed.
Their commentator stated it wouldn't be seen any more at the start of the display on Sunday :-(
Their commentator stated it wouldn't be seen any more at the start of the display on Sunday :-(
Yes, seemingly the C-27J did not carry them out as the Italian Air Force does not perform such manoeuvres as part of its normal flying ops. Made it a very dull routine. Anyone remeber the Dutch Fokker F.27 from some years back?
And a very impressed Martian here on watching the LM-100J.
And a very impressed Martian here on watching the LM-100J.
As with the C-130 loop, if he kept a steady +1G all the way round, should cause no extra stress on the frame.
The crew was from a test squadron and presumably was wringing out the airframe when it departed controlled flight. There was planning here as well, but perhaps some unexpected flight characteristics surfaced.
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The mishap bird was a USAF bird undergoing testing for high slideslip angles. The pilot exceeded the slideslip angle and the was slow in applying corrections and then put in the the wrong correction. It was not a stunt gone awry.