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-   -   The F-35 thread, Mk II (https://www.pprune.org/military-aviation/630295-f-35-thread-mk-ii.html)

harrogate 1st Jul 2022 12:47

Biden just announced an additional 2 squadrons going into Lakenheath. Sounds permanent, but unclear.

GeeRam 1st Jul 2022 15:00


Originally Posted by harrogate (Post 11254609)
Biden just announced an additional 2 squadrons going into Lakenheath. Sounds permanent, but unclear.

Should be cozy with another 2 sqdns.......

I bet they are wishing they hadn't dug up the runway at Alconbury now......

madhon 1st Jul 2022 15:02


Originally Posted by GeeRam (Post 11254674)
Should be cozy with another 2 sqdns.......

I bet they are wishing they hadn't dug up the runway at Alconbury now......

Hopefully sleepy joe isnt confusing them with the two existing squadrons been built up to strength.

RAFEngO74to09 1st Jul 2022 15:37

Almost certainly it is just spin from Biden's puppet masters.

Already planned 495th FS & 493rd FS. There aren't the facilities at RAF Lakenheath for 6 x sqns & I don't see the F-15E being withdrawn from 492nd FS & 494th FS until the F-35A can carry the full range of weapons.

This from US SecDef appears to clarify 2 x F-35A sqns total forward in Europe.



SLXOwft 1st Jul 2022 15:49

DoD press release appears to say two additional squadrons (increasing 5th gen presence) but it isn't clear as strictly the working up 495th and future 493rd squadrons are/will be forward based; I wonder if it is significant that the newly arrived Liberty Wing commander is a 1* replacing the usual Bird Colonel. Brig Gen Joseph L Campo took over from Col Jason Cameletti on 29 June.


Today, President Biden announced at the NATO Summit in Madrid the following additional long-term commitments to bolster European security:
...

In the United Kingdom, we are increasing our Fifth Generation Fighter presence and ability to support Allies across Europe by forward-stationing two squadrons of F-35s at RAF Lakenheath.
https://www.defense.gov/News/Release...ons-to-europe/

Maj Gen Derek France (Commander 3rd Air Force) at the hand over ceremony: 'Change is a a fact of life and transitions are hard. I get it's hard to bring on new leadership but our Air Force is better for it. The wing is now commanded by a Brigadier General and in my mind that means that it's indicative of the strategic nature of this Wing, the increased scope of the mission here'

It's years since I was inside the wire (back in 4 x F-111 sqn times) but there were works completed in 2020 to allow the 492nd and 494th to consolidate F-15E operations on one ramp before the F-35s arrived and shelters for 42 F-35s on the other expanded ramp. The 495th is due to have 24 aircraft - go figure.

golder 11th Jul 2022 02:29

French corruption at its best. 50% bribe of 3.5 billion and EU manipulation. The Swiss still didn't want the Rafale.
The French had a dummy spit and showed again, that they don't play well with others " Paris reacted abruptly, severing all high-level diplomatic relations with Switzerland"

https://www.blick.ch/fr/news/suisse/un-document-souleve-des-questions-viola-amherd-a-t-elle-menti-sur-les-avions-de-combat-f-35-id17645311.html

Paris angry, the DDPS is silent


France would have provided this confirmation, with two promises: on the one hand, Paris has shown itself ready to pay eight Swiss cantons a larger share of tax revenue from the salaries of cross-border workers. According to estimates, this would have brought in 3.5 billion francs over ten years. Secondly, Bruno Le Maire would have assured that France would support Switzerland in the future in all matters of European policy. The SRF, disclosing this, refers to four independent sources.

Once the pot of roses was discovered, Paris reacted abruptly, severing all high-level diplomatic relations with Switzerland. The disagreement between Bern and Paris still persists today. This is also linked to later statements by the DDPS of Viola Amherd, reports SRF.

etudiant 11th Jul 2022 02:39


Originally Posted by golder (Post 11259521)
French corruption at its best. 50% bribe of 3.5 billion and EU manipulation. The Swiss still didn't want the Rafale.

https://www.blick.ch/fr/news/suisse/un-document-souleve-des-questions-viola-amherd-a-t-elle-menti-sur-les-avions-de-combat-f-35-id17645311.html

Paris angry, the DDPS is silent


France would have provided this confirmation, with two promises: on the one hand, Paris has shown itself ready to pay eight Swiss cantons a larger share of tax revenue from the salaries of cross-border workers. According to estimates, this would have brought in 3.5 billion francs over ten years. Secondly, Bruno Le Maire would have assured that France would support Switzerland in the future in all matters of European policy. The SRF, disclosing this, refers to four independent sources.

Once the pot of roses was discovered, Paris reacted abruptly, severing all high-level diplomatic relations with Switzerland. The disagreement between Bern and Paris still persists today. This is also linked to later statements by the DDPS of Viola Amherd, reports SRF.

Well, the story says that Paris was peeved because the Swiss asked for confirmation of the various proposed tax and policy considerations even after they had already selected the F-35.
So Paris feels baited and switched. Perhaps of course the Swiss just did not believe that Macron would deliver.

Petit-Lion 11th Jul 2022 03:31

What I read is about french public money proposed to swiss public administrations (cantons), no private pockets involved. "French corruption at its best" sounds complimentary now.

SpazSinbad 18th Jul 2022 21:50

Cost Reductions Make F-35 a Winner in Europe 18 Jul 2022 Chris Pocock "The F-35 “is a European airplane,” according to J.R. McDonald, Lockheed Martin v-p for F-35 strategy and business development.... The UK recently committed to a further 26, making a total of 74.... ...McDonald noted that Finland and Switzerland “had been very transparent” by publishing their evaluation data...." https://www.ainonline.com/aviation-n...-winner-europe

ORAC 21st Jul 2022 04:45

https://www.defensenews.com/global/e...t-fighter-jet/

Czech Republic selects F-35 as next fighter jet

WARSAW, Poland — The Czech government has decided to launch negotiations with the United States to buy 24 F-35 Lightning II fighter jets for the country’s Air Force.

The aircraft are to replace the 14 Saab JAS 39 Gripens currently operated by the Czech military, making the country the second Eastern European ally after Poland to order Lockheed Martin’s fighters.

“I was authorised to form an inter-ministerial negotiating team and commence negotiations with the United States government to procure 24 units of the F-35 Lightning II multirole fighters to equip two squadrons,” Czech Defense Minister Jana Černochová said in a statement.

Prague will continue to lease the Gripen C/D jets until the end of 2027 when the contract expires.

“Our decision to select this option is based on the analysis by the Czech Armed Forces, which clearly articulates that only the most advanced 5th-generation fighters will be able to meet mission requirements in future battlefields,” Černochová said.

The value of the potential deal was not disclosed by the Czech ministry.…..



tartare 21st Jul 2022 07:17

Was watching video of the B-Model hovering at Farnborough.
When it translates to forward flight it seems to keep the front fan door open for a long time.
That must create huge drag - does anyone know what speed it closes at - is it computer controlled or commanded by the pilot? (I suspect the later rather than the former).
The screwjacks or struts that it uses must be incredibly strong given the airload...

SpazSinbad 21st Jul 2022 07:30

F-35 Begins Year With Test Objectives Unmet 04 Jan 2011 Graham Warwick
http://www.aviationweek.com/aw/gener...p22-279507.xml
"...upper lift-fan door actuator redesigned, and no problems were experienced in the last quarter, he says. ...McFarlan says some hinge components have been redesigned & operation of the lift-fan door rescheduled to reduce airloads on the auxiliary doors during semi-jet-borne flight. The lift-fan door was programmed to open to 65 deg. below 120 kt., and to 35 deg. above that airspeed. But with the large door fully open, loads on the auxiliary-inlet doors behind it are reduced, so the schedule has been changed to keep the lift-fan door open 65 deg. up to 165 kt. during a short takeoff, he says...."

tartare 21st Jul 2022 07:32

Impressive - thanks Spaz.

ORAC 21st Jul 2022 07:41

Its a lot more complex than just a fan door - and all computer controlled and sequenced to ease pilot workload in comparison to the Harrier.

If you check the history of the development programme the door and mechanism is an area which was substantially redesigned and strengthened, first changing from side opening bi-fold doors to the single rear-hinged flap, then strengthening the bulkhead =, hinges and flap as well.

https://aviation.stackexchange.com/q...ing-transition


SpazSinbad 21st Jul 2022 08:33

Yes everything about the F-35B in STOVL Mode 4 is complicated but eased by the CLAW. Yes the doors were redesigned as mentioned here for example: https://www.smithsonianmag.com/air-s...pilot-7943229/ There are other references but we could go on and on because YES the F-35B is more complicated than anything else probably but so much easier for the pilot to fly because CLAWs do the work.

Possibly of interest is this PDF from 2020: https://www.faa.gov/sites/faa.gov/fi...ht_Profile.pdf (0.4Mb) F-35B LEVEL I, II, III, AND NIGHT AIRSHOW DEMONSTRATION PROFILES USMC F-35B Model Manager 7 April 2020

Sadly a 'Part II' of this excellent CLAW article from a test pilot has not been published: Semper Lightning: F-35 Flight Control System | Code One Magazine The old F-35 thread (part 1) had a lot about the Unified Control LAWS in the F-35 particularly the F-35B - I'll stop & continue....

From the F-35B airshow details above: page 4: "...TSTO: Aircraft lines up 2000 feet prior to show center on the runway and conducts a TSTO. Once airborne, retract the gear and accelerate with a positive rate of climb until passing show center. Execute a climbing turn to 500'AGL away from show center targeting 200-240KCAS while converting out of STOVL. Once in CTOL, continue turn in the same direction and accelerate to target 500' AGL, 500' show line, and 380KCAS...." https://www.faa.gov/sites/faa.gov/fi...ht_Profile.pdf

Navaleye 21st Jul 2022 08:53


Originally Posted by tartare (Post 11265122)
Was watching video of the B-Model hovering at Farnborough.
When it translates to forward flight it seems to keep the front fan door open for a long time.
That must create huge drag - does anyone know what speed it closes at - is it computer controlled or commanded by the pilot? (I suspect the later rather than the former).
The screwjacks or struts that it uses must be incredibly strong given the airload...

From memory it's about 160kts and it's automated

Video Mixdown 21st Jul 2022 10:00


Originally Posted by tartare (Post 11265122)
Was watching video of the B-Model hovering at Farnborough.
When it translates to forward flight it seems to keep the front fan door open for a long time.
That must create huge drag - does anyone know what speed it closes at - is it computer controlled or commanded by the pilot? (I suspect the later rather than the former).
The screwjacks or struts that it uses must be incredibly strong given the airload...

Is it not the case that since most of the air mass in that area is drawn down into the lift fan, it never hits the door so cannot cause drag.

RAFEngO74to09 7th Sep 2022 19:13

F-35 deliveries suspended after finding Chinese alloys in magnets - Breaking Defense

WB627 7th Sep 2022 19:28

I'd realy like to know how you can hack a magnet :confused:

LateArmLive 8th Sep 2022 10:54

Nobody is suggesting you can. The US does not want to rely on a "potential adversary" to supply parts for its fighters.


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