F-35B UK SRVL info - Updated when new/old info available

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spazsinbad

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Unread post29 Nov 2017, 10:24

Not sure if this graphic posted here also or just on another forum but anyway it comes from:
The Queen Elizabeth Class Aircraft Carriers: Airwake Modelling and Validation for ASTOVL Flight Simulation
https://www.researchgate.net/profile/Mi ... lation.pdf (1.7Mb)

Then: https://www.researchgate.net/profile/Ma ... arrier.pdf (about 1Mb or so) [LINK is LONG]

LINK to Page to get the PDF: Using airwake simulation to inform flight trials for the Queen Elizabeth Class Carrier
https://www.researchgate.net/publicatio ... ss_Carrier
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CVF WOD CFD DECK.jpg
QEC approaches for SRVL and VL.gif
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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spazsinbad

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Unread post30 Nov 2017, 01:18

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CVFsimLSOstation.jpg
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 Nov 2017, 06:28

This PDF mentioned above is on a page however the URL is very long & problematic for the PDF so the page URL will do:

https://www.researchgate.net/publicatio ... Simulation (PDF 1.7Mb) [CLICK GRAPHIC & ZOOM IN! Why don'cha]
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AirWakeAirFlowOverFrontCVFdeckTIF.gif
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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neptune

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Unread post30 Nov 2017, 09:30

Spaz,

I haven't located any references for the SRVL Program for the F-35B and the DFP ("credited the F-35C's Delta Flight Path (DFP) technology with significantly reducing pilot workload during the approach to the carrier, increasing safety margins during carrier approaches and reducing touchdown dispersion.") and JPALS ("JPALS is a differential GPS-based precision landing system that guides aircraft to carriers and amphibious assault ships in all weather conditions and in surface conditions to sea state 5") and the 60 kt. (+2klb. load carrying) SRVL approach speed. JPALS seems to have been a "big" contributor to the X-47B program CVN approach and landing successes.

Are you aware if there any documents referencing the association of these proven software "algorithms" and SRVL?; any help is appreciated!
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Unread post30 Nov 2017, 09:43

JPALS has not been installed on CVF QE but will later be used when OKed by the USN on CVNs I expect. For the moment QE will have only the SPN-41(info on Mod In A Muddle thread I think). The F-35B will be in STOVL Mode 4 for an SRVL which is not the same as a 'Delta Flight Path' for the F-35C. However IF you read this thread (& probably others) about SRVL approaches then a group of technologies including the SRVV (Ship Referenced Velocity Vector) in the vHud and Bedford Array on the flight deck will enable precise SRVLs up to sea state 6 are envisaged (via computer sims at moment).

viewtopic.php?f=58&t=15969&p=375073&hilit=sponson#p375073
&
viewtopic.php?f=58&t=15969&p=279438&hilit=sponson#p279438

Give me your tired - your poor - those yearning for JPALS: viewtopic.php?f=22&t=20304&p=269569&hilit=JPALS#p269569
&
SRVL description (videos this thread also): viewtopic.php?f=22&t=20304&p=240066&hilit=JPALS#p240066

RN FAA CMDR Pilot talking in video above is Nathan Gray, who will become the 1st F-35B test pilot onboard QE next year.
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 post01 Dec 2017, 02:04

spazsinbad wrote:up to sea state 6


I'm going to add that to my "things I don't want to ever do" list...
u = (CB)⁻¹(cvdt_des - CAx)
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spazsinbad

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Unread post01 Dec 2017, 02:11

Sea State Six: Waves start to roll.
HIGH SEA: Sea begins to roll, dense streaks of foam and much spray. Wind strong gale, 40-48 knots. Beaufort 9. Loose gear and light canvas may part.” http://www.dtic.mil/dtic/tr/fulltext/u2/a118181.pdf
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 post01 Dec 2017, 03:32

Slightly OFF TOPIC (I ain't no helioplickerpilote) HOW TO via CFD aboard QE or somesuch:

PILOTED FLIGHT SIMULATION FOR HELICOPTER OPERATION TO THE QUEEN ELIZABETH CLASS AIRCRAFT CARRIERS

https://www.researchgate.net/publicatio ... T_CARRIERS

PDF: https://www.researchgate.net/profile/Mi ... RRIERS.pdf (1Mb)

https://www.researchgate.net/profile/Mi ... elines.jpg
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CVFwodProfile.gif
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 post01 Dec 2017, 03:48

WOT is RONG with this 3D model (at $295 no less): https://www.turbosquid.com/3d-models/3d ... aft/547776
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CVFincorrectJBDmodel.jpg
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 post01 Dec 2017, 16:23

More text & 2 page PDF of entire article posted in the 'UK MoD in a Muddle' thread earlier but this bit is puzzling.... LINK:

viewtopic.php?f=58&t=15969&p=382226&hilit=Hoyle#p382226
UK prepares the ground for its first Lightning IIs to strike
5-11 Dec 2017 CRAIG HOYLE

"...HMS Queen Elizabeth, will be commissioned by her namesake in Portsmouth on 7 December. The 65,000t vessel will go on to host the first landings by an F-35B in the second half of 2018, during trials conducted off the US east coast.

Further testing will take place in 2019 using HMS Prince of Wales, which will be delivered with a so-called Bedford Array system installed, enabling pilots to employ a shipborne rolling vertical landing (SRVL) technique...."

Source: Flight International | 5-11 December 2017
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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