Boring vertical landings. :} USMC F-35Bs Vertical Landing aboard JS Izumo 03 Oct 2021
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Spaz, the video illustrates my question above.
If the 'stick' controls up and down - 'throttle' controls fore and aft; then how is the constant pitch attitude maintained. |
Originally Posted by safetypee
(Post 11353719)
If the 'stick' controls up and down - 'throttle' controls fore and aft; then how is the constant pitch attitude maintained.
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Originally Posted by safetypee
(Post 11353719)
Spaz, the video illustrates my question above.
If the 'stick' controls up and down - 'throttle' controls fore and aft; then how is the constant pitch attitude maintained. |
Eleven [out of 33] F-35 fighters grounded after US crash 25 Dec 2022 https://www.jpost.com/breaking-news/article-725763 "...the IDF and Lockheed Martin, who manufactures the F-35, pointed out that it is not certain that the Israeli F-35A has the same problem. Rather, they emphasized that the grounding, which only applies to 11 aircraft out of a much larger fleet of F-35s and other planes, was taken as a precaution...."
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Salute!
To answer the question about pitch attitude, I'll describe short as I can what I saw here when the Bee did a go around from an approach with all the doors open and what looked like normal pitch maneuvering. Was #3 behind an A and a C. So my guess is the flight was a demo for some brass. The A and C landed and the Bee went up to downwind just like a normal plane with all doors open. It turned base and flew to the runway just like basic planes do, and at 100 feet or so leveled, slowed and went into a hover. Plane maintained perfectly level and the pilot rotated the heading 90 deg one way then back. Once more go around after it gained speed and this time came in a bit slower than I suspect a normal landing would be and with minimal flare plopped onto the runway, then turned off after about 300 feet or so. So the part about the control laws blending in and out according to the speed seems to describe what I saw that day. Gums sends... |
Spoiler
"...A source familiar with the program, who spoke on the condition of anonymity because they were not authorized to discuss details of the incident, said the JPO’s initial assessment found that a propulsion system issue led to the Dec. 15 crash of the hovering F-35B, which has now led to broader groundings in the fleet. The source said that, in guidance to the services, the JPO said a failure of atube used to transfer high-pressure fuel in the fighter’s F135 engine prompted the office to update its safety risk assessments. The JPO also told the services that jets with fewer than 40 hours of flying are affected, this source said...." |
Israel have apparently grounded their F-35As as a result of the Fort Worth crash so whatever went wrong might not be isolated to the B model.
https://eurasiantimes.com/us-israel-...rash-in-texas/ |
Salute!
Rumor on the street over in the States is a problem with a fuel line or other component that is pressurized and has several functions. Remember, this is "rumor network". So could be a component they are looking at that is common on the engine, regardless of the A,B or C. Gums sends... |
Originally Posted by gums
(Post 11355805)
Salute!
Rumor on the street over in the States is a problem with a fuel line or other component that is pressurized and has several functions. Remember, this is "rumor network". So could be a component they are looking at that is common on the engine, regardless of the A,B or C. Gums sends... BTW, saw an article yesterday that said the "aircraft ejected the pilot". Now, given the accuracy of reporting, I'm inclined to take that with a grain of salt. But if it is in fact correct, it would suggest the ejection was automatic, not commanded by the pilot. |
Lots of new still photos in this video
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Interesting cloud of smoke at 1:50 in the above video, wonder what it might infer.
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Reason for the swift descent? :} Smoke gets in your eyes.
https://cimg4.ibsrv.net/gimg/pprune....cb8afa05cd.jpg |
Never realised that the canopy was built in two pieces.
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Probably not here now but anyway: http://www.flightglobal.com/blogs/th...%20Studies.pdf
https://cimg2.ibsrv.net/gimg/pprune....eaa43e2310.jpg |
SpazSinbad
Thanks for the info. |
Originally Posted by Compass Call
(Post 11357416)
Never realised that the canopy was built in two pieces.
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Originally Posted by SpazSinbad
(Post 11356927)
Reason for the swift descent? :} Smoke gets in your eyes.
Smoke (or flames) is a pretty common indicator... |
Originally Posted by Video Mixdown
(Post 11357444)
I thought it was a one-piece moulding that is cut in half (by MDC?) during the ejection sequence.
Quote from previous graphic: F-35 Canopy Design Description 2009 LM - Transparency is Single Piece Formed & Stretched Acrylic - Thick Windscreen is Fwd of the Bowframe & Transitions to Thinner Transparency Section Aft - CTOL & CV Canopy Designs are Common & Windscreen Design is Tri-variant Common - Flexible Linear Shape Charge Bonded to IML [Inner Mould Line] to Facilitate Pilot Escape http://www.flightglobal.com/blogs/th...%20Studies.pdf [no longer there] https://cimg5.ibsrv.net/gimg/pprune....e1b9e99f13.jpg |
Originally Posted by SpazSinbad
(Post 11356927)
Reason for the swift descent? :} Smoke gets in your eyes.
https://cimg4.ibsrv.net/gimg/pprune....cb8afa05cd.jpg |
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