Patuxent River Ski Jump Video (No F-35Bs on it)

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spazsinbad

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Unread post11 Feb 2016, 10:00

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RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post11 Feb 2016, 13:12



(Just in case it hadn't already been posted.)
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Unread post21 May 2016, 11:38

Visiting the Pax River F-35 Integrated Task Force: Todd Miller Provides an Update
20 May 2016 Todd Miller MORE HERE: viewtopic.php?f=22&t=45494&p=338896&hilit=Miller#p338896

"...Stewart noted the advanced intelligence featured by the F-35B when performing the ski jump take off, unique to the U.K. and Italy. “The aircraft knows its weight and center of gravity, it understands all that already, sets the control surfaces — the pilot essentially points it and launches.

When the pilot starts his or her run, they haven’t even told the aircraft to that point that they are doing a ski jump launch. When the F-35B senses the ramp, it understands it is on a ski jump and needs to apply the appropriate control surfaces — and executes.

A lot of process is automated, the aircraft has a lot of understanding of its current situation and the aircraft uses that to make the task very easy.” It brings to mind “Skynet” of the Terminator movie series and the moment Skynet becomes “self-aware.” Fortunately, in this case the F-35 is self-aware while remaining safely under control of human mind and hands!..."

Source: http://www.sldinfo.com/visiting-the-pax ... an-update/
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post30 Jun 2016, 13:53

'bring_it_on' posted a great F-35B Ski Jump article here yesterday:
F-35 Control Law ‘Tweaked’ To Correct Ski-Jump Takeoff Anomaly
viewtopic.php?f=22&t=23690&p=345309&hilit=Tweaked#p345309
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post06 Jul 2016, 15:47

How it Works: An F-35B Ski Jump Takeoff
02 Jul 2016 LM PR

"For more than 30 years, the UK has used the ski jump for carrier operations as an alternative to the catapults and arresting gear used aboard U.S. aircraft carriers. The shorter UK carriers feature an upward-sloped ramp at the bow of the ship. Curved at its leading edge, a ski-jump ramp simultaneously launches aircraft upward and forward, enabling takeoffs with more weight and less end-speed than required for an unassisted horizontal launch aboard U.S. aircraft carriers.

With the partnership between the Lockheed Martin and the UK's BAE Systems, the design of the F-35B has incorporated the ski jump takeoff capability from the very beginning....

...Squadron Leader Andy “GARY” Edgell, RAF, is the first UK military pilot to complete a takeoff from the ski jump with an F-35B.

“The performance of the jet has been great. As the pilot, I have to do very little to accomplish a perfect ski jump takeoff,” commented Edgell. “I push the STOVL [short take off vertical landing] button to convert to Mode 4, push throttle to mil and use the pedals for minor directional inputs to remain on centerline.”

The F-35B automatically positions the control surfaces and nozzles for takeoff, a unique capability compared with previous STOVL aircraft. Such automation frees up pilot capacity and provides an added safety enhancement. The aircraft treats the take off just like a regular short take off until it recognizes the six-degree per-second pitch rate and six-degree pitch angle about half way up the ramp. The horizontal tails and nozzle then automatically maneuver downward, and the vane box does not budge. The vane box sits directly under the lift fan and directs the airflow to allow for the proper lift off the surface.

“As the jet travels up the ski jump it automatically makes the necessary adjustments to the nozzle and control surface deflections. With the F-35 automatically adjusting for the optimum takeoff, the pilot is free to adopt more of a supervisory role, monitoring for any off-nominal behavior and ready to immediately take full control, if necessary,” said Edgell. “Virtue of the superb F-35 STOVL handling qualities, the low pilot workload during launch and recovery from an aircraft carrier enables the pilot to focus more on the operational task at hand and less on the administrative aspects of the flight.”..."

PHOTO:"The F-35 flies over HMS Queen Elizabeth on July 1, 2016, during an in-country deployment for the RIAT and Farnborough Air Shows." https://a855196877272cb14560-2a4fa819a6 ... __main.jpg


Source: https://www.f35.com/in-depth/detail/how ... mp-takeoff
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RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post06 Jul 2016, 16:48

Same PR story is at Navy Recognition however they have this CVF Ski Jump photo showing the start at 150 feet mark:

http://www.navyrecognition.com/index.ph ... ew&id=4165

http://www.navyrecognition.com/images/s ... mp_QEC.jpg
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Unread post13 Jul 2016, 12:55

http://www.janes.com/article/62226/farn ... ump-trials

Farnborough 2016: F-35B completes initial phase of land-based ski-jump trials
Peter Felstead, Farnborough - IHS Jane's Defence Weekly
13 July 2016

The initial phase of land-based ski-jump testing for the F-35B short take-off/vertical landing (STOVL) variant of the Lockheed Martin Joint Strikes Fighter has been successfully completed at Naval Air Station (NAS) Patuxent River in Maryland in the United States, laying a key foundation for first-of-class flight trials with the UK's future Queen Elizabeth-class (QEC) aircraft carriers.

Briefing journalists at the Farnborough International Airshow on 12 July, David Atkinson, BAE Systems' F-35/QEC integration manager, said the flight trials were "critical to validate a lot of the work that has been done through modelling and provide the certification-quality evidence that's needed to allow service pilots to operate from the ship".

(108 of 1008 words)
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Unread post14 Jul 2016, 09:25

I think becuz of the posting restrictions this article (only brief excerpt above) has a lot of detail but I couldna post it. :x
Farnborough 2016: F-35B completes initial phase of land-based ski-jump trials
13 Jul 2016 Peter Felstead

"The initial phase of land-based ski-jump testing for the F-35B short take-off/vertical landing (STOVL) variant of the Lockheed Martin Joint Strikes Fighter has been successfully completed at Naval Air Station (NAS) Patuxent River in Maryland in the United States, laying a key foundation for first-of-class flight trials with the UK's future Queen Elizabeth-class (QEC) aircraft carriers.

Briefing journalists at the Farnborough International Airshow on 12 July, David Atkinson, BAE Systems' F-35/QEC integration manager, said the flight trials were "critical to validate a lot of the work that has been done through modelling and provide the certification-quality evidence that's needed to allow service pilots to operate from the ship". BAE Systems is under contract via the F-35 Joint Program Office to perform the ski-jump trials work.

Following on from the first F-35B take-off from a ski-jump ramp at NAS Patuxent River, performed by aircraft BF-04 on 19 June 2015, another 30 take-offs were made over the course of the next 12 months by aircraft BF-04 and BF-01.

Describing the parameters of the ski jump tests in the same briefing, Pete 'Wizzer' Wilson, the STOVL lead test pilot for the F-35 programme at NAS Patuxent River, said, "We've done weights up to full fuel and full internal stores; forward/mid/aft centre-of-gravity positions; a range of ramp exit speeds up to 95 KCAS [knots - calibrated air speed]; line-up distances from 315 to 620 ft; and we've done mil and max power [non-afterburning and afterburning] launches: a total of 31 in all. So we have successfully executed the initial phase of the F-35 ski jump testing; this is a very significant milestone from our perspective."

Wilson explained how "an awful lot is happening in a very short amount of time, about a second's worth", when an F-35B takes off from a ski jump: a process that is effectively automated and "cognitively simple for the pilot" in comparison with taking off in a Harrier jump jet.""

Source: http://www.janes.com/article/62226/farn ... ump-trials
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post14 Jul 2016, 10:03

spazsinbad wrote:I think becuz of the posting restrictions this article (only brief excerpt above) has a lot of detail but I couldna post it. :x
Farnborough 2016: F-35B completes initial phase of land-based ski-jump trials
13 Jul 2016 Peter Felstead

"The initial phase of land-based ski-jump testing for the F-35B short take-off/vertical landing (STOVL) variant of the Lockheed Martin Joint Strikes Fighter has been successfully completed at Naval Air Station (NAS) Patuxent River in Maryland in the United States, laying a key foundation for first-of-class flight trials with the UK's future Queen Elizabeth-class (QEC) aircraft carriers.

Briefing journalists at the Farnborough International Airshow on 12 July, David Atkinson, BAE Systems' F-35/QEC integration manager, said the flight trials were "critical to validate a lot of the work that has been done through modelling and provide the certification-quality evidence that's needed to allow service pilots to operate from the ship". BAE Systems is under contract via the F-35 Joint Program Office to perform the ski-jump trials work.

Following on from the first F-35B take-off from a ski-jump ramp at NAS Patuxent River, performed by aircraft BF-04 on 19 June 2015, another 30 take-offs were made over the course of the next 12 months by aircraft BF-04 and BF-01.

Describing the parameters of the ski jump tests in the same briefing, Pete 'Wizzer' Wilson, the STOVL lead test pilot for the F-35 programme at NAS Patuxent River, said, "We've done weights up to full fuel and full internal stores; forward/mid/aft centre-of-gravity positions; a range of ramp exit speeds up to 95 KCAS [knots - calibrated air speed]; line-up distances from 315 to 620 ft; and we've done [b]mil and max power [non-afterburning and afterburning] launches[/b]: a total of 31 in all. So we have successfully executed the initial phase of the F-35 ski jump testing; this is a very significant milestone from our perspective."

Wilson explained how "an awful lot is happening in a very short amount of time, about a second's worth", when an F-35B takes off from a ski jump: a process that is effectively automated and "cognitively simple for the pilot" in comparison with taking off in a Harrier jump jet.""

Source: http://www.janes.com/article/62226/farn ... ump-trials

Do I understand this to mean that the afterburner can be engaged simultaneously with the lift fan?
"When a fifth-generation fighter meets a fourth-generation fighter—the [latter] dies,”
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Unread post14 Jul 2016, 10:05

Deleted.
"When a fifth-generation fighter meets a fourth-generation fighter—the [latter] dies,”
CSAF Gen. Mark Welsh
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Unread post14 Jul 2016, 10:30

No. The A/B cannot be engaged in STOVL Mode 4 (vertical landing / STO mode). However an almost equivalent engine power is obtained when in Mode 4 via the fwd/rear exhausts. YES I found the text curious and then remembered querying this some time back - to do with the linear throttle which has two soft detents for full power and A/B power (which still operates in Mode 4 but obviously the A/B is not engaged). I'll have to dig this reference out again - standby to standby....
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post14 Jul 2016, 10:46

Thanks for the confirmation, that's what I understood all along. So they were testing off the ramp w/o benefit of the lift fan..
Last edited by popcorn on 14 Jul 2016, 12:22, edited 1 time in total.
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Unread post14 Jul 2016, 11:01

Maybe, but I'd closer believe that it was just a misreport; there's been a few typos and incorrect statements from Janes, AvWeek, etc these past couple of weeks.
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Unread post14 Jul 2016, 11:04

'popcorn' said: "...So they were testing off the ramp w/o benefit of the lift fan." NYET no one is EVA going OFF that ski jump in a conventional take off mode. The F-35B goes OFF in STOVL mode. Found reference....

Another good ski jumpy post: viewtopic.php?f=22&t=20138&p=303826&hilit=Salty+Dogs+Funky+Jets#p303826
Jumping Jack Flash
July 2014 unknown author AIR International F-35 Special Edition

"...The pilot also has command of the throttle. Two power setting options are available for take-off: Mil STO and Max STO [have not read about this before], as Maj Rusnok explained: “When you taxi to the tram line you stay in mode one, the conventional flight mode. You convert the aircraft into mode four, the STOVL flight mode, and it takes about 15 seconds or so for the doors to open up and the lift fan to engage.

“Then you push the throttle about halfway up the throttle slide into a detent position at about 34% engine thrust request. It sits there and you check the engine gauges: if the readings are okay you slam the throttle to either Mil or Max position and then release the brakes simultaneously. Pushing through to max is like an afterburner detent. But it’s not an afterburner – you can’t go to afterburner in mode four...."

magazine source but much more text here below slinky: AIR International F-35 Special Edition July 2014

Source: viewtopic.php?f=57&t=24438&p=274982&hilit=Rusnok+three+ways#p274982

AND... as always - there is more but always difficult to comprehend (for me anyways)
ACTIVE STICK & THROTTLE FOR F-35
16 October 2008 Joseph Krumenacker; NAVAIR Flight Controls / JSF Vehicle Systems

"JSF Active Inceptor System (AIS)
...Throttle:
– Variable aft & forward end-stops (e.g. STOVL mode is different from CTOL mode)
– AB gate (when STOVL system is not deployed)
– Launch gate (CV only)...

GO HERE &/or download a PDF made from the .PPT referenced below: viewtopic.php?f=22&t=24054&p=275894&hilit=Krumenacker#p275894 SEARCH forum on Krumenacker for more.

PDF: download/file.php?id=19248 (1Mb)

Source: http://www.csdy.umn.edu/acgsc/mtg102/SubcommitteD/F35 AIS Krumenacker SAE 081016.ppt
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post14 Jul 2016, 12:25

Dragon029 wrote:Maybe, but I'd closer believe that it was just a misreport; there's been a few typos and incorrect statements from Janes, AvWeek, etc these past couple of weeks.

Looks like you're right. Spaz has clarified.
"When a fifth-generation fighter meets a fourth-generation fighter—the [latter] dies,”
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