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Chinese CVA by 2010

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Old 10th Jun 2021, 18:54
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Doug Taylor

...
It's all right for you 'eros, but at my level there's a lot to be said for 'inshallah' or "OK God, I have control" when working with this sort of optimistic technology.God bless Doug Taylor - RIP 2019, age 89. He was 831 Squadron AEO in 1961-62 and 'Flight Deck Engineer Officer' of the Vic, as the FAAOA story below relates.


Lt Cdr Douglas Taylor - The Ski Jump

Lt Cdr Doug Taylor RN, the inventor of the ski jump, was a former deck officer aboard HMS Victorious in the sixties who was seeking an alternative to the Steam Catapult after witnessing the failure of the cats due to excessive heat in the far east. The runners either side of the cat slots had expanded due to the heat and the alert fighters could not be launched, so Taylor ordered the fire hoses to be turned on the deck to cool it down. Realising an alternative system with no moving parts would be desirable, he worked on his thesis at Southampton University and came up with a paper he called 'The Runway in The Sky', published in 1973.

HMS Invincible, lead ship of the class was laid down in 73, and launched in 77, without a ski jump (added during the fitting out stage). The ski jump was an upward-curving ramp at the end of the Short Take-Off run which imparted a positive vertical velocity to the aircraft. As well as offering more payload, the ski jump enhances safety because the aircraft is going upwards as it leaves the end of the ramp, giving more time to eject in the event of a problem. Initially, 7° ramps were fitted to Invincible and Illustrious, and Hermes and Ark Royal got 12° ramps. Later Invincible and Illustrious were refitted with 12° ramps.

On 30 October 1980, the test pilot, Lt Cdr David Poole from Boscombe Down, flying XZ439 made the first Sea Harrier launch from a ski jump at sea, from HMS Invincible.

LFH
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Old 10th Jun 2021, 18:57
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Originally Posted by Mogwi
There is a small advantage in launching conventional aircraft from a ramp because the first few seconds of flight are partially ballistic, giving the aircraft time to accelerate to above stalling speed. Mog
Thanks for that. Sounds to me as if a full fuel and weapons load could easily make it all pretty marginal.
On the subject of Harrier take-off performance, at Gioia del Colle in Aug 1995 (v.hot) we were filming Jaguars and Harriers on OP DELIBERATE FORCE for HQSTC. To catch the Jaguars getting airborne we had to position a long way down the runway. The Harriers were at about 500’ by the time they went past!
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Old 30th Aug 2021, 07:21
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China ma6 be rethinking building CVA004 as a nuclear carrier, plus an update on CVA003.

https://min.news/en/military/e738f73...047e57bab.html

The 003 aircraft carrier will be launched. When will the 004 nuclear-powered aircraft carrier start?The conclusion may be unexpected

https://inf.news/en/military/43ca68f...c568c27a6.html

https://inf.news/en/military/5ef07d4...61cfa39c4.html
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Old 11th Jun 2022, 05:12
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Reports that the construction equipment being cleared from the dry dock on carrier 003 with launch being imminent.

https://www.defensenews.com/global/a...craft-carrier/



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Old 11th Jun 2022, 07:53
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I'd suspect she'll be launched around 1st October - National Day
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Old 17th Jun 2022, 21:18
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Nope, already launched. Time & tide wait for no man….

China’s first conventional aircraft carrier "Fujian” is out of dock and afloat. (Second in size only to US Ford/Nimitz class).




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Old 18th Jun 2022, 04:38
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Old 18th Jun 2022, 07:32
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"I'd suspect she'll be launched around 1st October - National Day"

Well that was wrong!! Thanks Spaz - they clearly can't wait for her!!

I like the look of that island as well
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Old 21st Aug 2022, 12:29
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. On edge! A PLAN Shenyang J-15 aboard the aircraft carrier Liaoning. Notice that even the horizontal stabilisers are foldable? Yup, the J-15 is that big!



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Old 21st Aug 2022, 14:10
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Military Origami ... I like it!
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Old 2nd Jan 2024, 15:41
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Old 3rd Jan 2024, 19:47
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Chinese Naval Modernization In 2023 Reviewed 03 Jan 2024
"...For carrier- and amphibious capability one of two headliners for Chinese naval modernization in 2023 was, as expected, again the third aircraft carrier Fujian. The first of her class, featuring electromagnetic catapults for conventional take off and arrested landing (CATOBAR) of fixed wing combat aircraft, continued her fitting-out at Jiangnan in Shanghai. Most importantly in November Fujian had begun with the first dead load-catapult test launches. The step underscores steady progress towards an expected first sea trial in 2024. Over the last few days of December tugboats towed the carrier back into drydock. The rationale for this move remains unknown. However it seems plausible that the hull will receive a thorough clean and inspection preparing Fujian for her sea trials next year [2024]...."
https://www.navalnews.com/naval-news...2023-reviewed/
Same PHOTO as above: "Chinese carrier Fujian being towed back into drydock December 2023. Source: Chinese social media." https://www.navalnews.com/wp-content...21rp0zu7jq.jpg
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Old 5th Jan 2024, 14:03
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Originally Posted by ORAC
J-15 (mock-up?) on the back
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Old 5th Jan 2024, 14:21
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I would imagine they have various airframes for checks on lifts, electrical connectors, EM interference checks etc.

Plus they’ll need to check datalinks for navigation systems, mission system updates etc.
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Old 5th Jan 2024, 14:35
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That ship isn't at deep displacement yet by a long chalk. She's going to have problems with slamming on the sponsons - freeboard looks way too low.
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Old 5th Jan 2024, 14:44
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NAB - that's a very interesting observation and possibly something they haven't thought through. Any suggestions as to what restrictions that might put on her deployment when fully equipped?
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Old 5th Jan 2024, 14:48
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NAB - that's a very interesting observation and possibly something they haven't thought through.
​​​​​​​Serves them right for not checking with PPRuNE first.
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Old 5th Jan 2024, 14:51
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Appalling isn't it? They probably checked with the Daily Mail tho'...............
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Old 5th Jan 2024, 14:57
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On her way to dry dock for hull inspection before sea trials later in the year.

How much difference t9 displacement will a full fuel, weapons, supplies, aircraft, manpower etc make?

(IIRC the T41s had to maintain a minimum of a 50% fuel load later in life, once they received a heavier radar antenna which made them top heavy?)
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Old 5th Jan 2024, 16:03
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Originally Posted by ORAC
On her way to dry dock for hull inspection before sea trials later in the year.<br /><br />How much difference t9 displacement will a full fuel, weapons, supplies, aircraft, manpower etc make?<br /><br />(IIRC the T41s had to maintain a minimum of a 50% fuel load later in life, once they received a heavier radar antenna which made them top heavy?)
Depends on the endurance figures (for both ship and air wing) primarily. But I'd expect to see something north of 10-12000 tonnes of additional weight at least. Based on length of 300m by beam of 39m that's likely to have her sitting around 1.5 m deeper in the water. Now - the immediate photos above are a little misleading compared to the distance shot in Oracs post #106 from June. However, those sponsons in way of the lifts and the one 20% aft of the bow do look as if they'll be a slamming risk in higher sea states.
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