PLAN Aircraft Carrier programme...(Closed)

Franklin said:

Correct me if i'm wrong. But when there is strong wind usually captains of aircraft carriers turn their ships around so that the planes won't have to face head or side wind during launch. That's even more important for a STOBAR carrier.

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Do you mean they do or don't? Even CATOBAR carriers turn into the wind for additional lift

Franklin said:

Correct me if i'm wrong. But when there is strong wind usually captains of aircraft carriers turn their ships around so that the planes won't have to face head or side wind during launch. That's even more important for a STOBAR carrier.

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Aircraft are always launched into the wind, if theres a 25knt wind over the bow, thats 25kts on the clock that you won't have to gain, the crosswind is avoided as well as it does make things tricky. Downwind take-off, landings and turns are to avoided, if your have a 10 knot tailwind you will have to add 10 knots additional speed to rotation and fly-away, so take-offs and landings are made into the wind. The headwind also increases control effectiveness on the ground while the tail wind degrades control effectiveness. brat

Bltizo said:

I very much doubt that they will use anything other than a rotary AEWC.

If one could reliably launch a turboprop AEW from a STOBAR carrier I expect the IN would have bought E-2s for Vicky straight off the bat.

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I don't think its a issue of if one could. I think its a issue of none being rated.
there are only two nations on earth that have ever built fixed wing carrier borne AEW craft. The US and UK of them only one has active production lines with only two types in service the Tracker being used by Brazil and the more common Hawkeye. Now it seems to me that if Russia or China or even India wanted to they could probably cook up a fixed wing stobar Aew. The issues though are first lift. The airframe would have generate exceptional Short takeoff lift. This might require a non conventional layout in terms of wings. Like a tri plane.
it might also need more power. There is no law set in stone that a fixed wing AEW must be turboprop. The USN has flirted with turbofan. Like variants of the S3 Viking.
radar the radar must be small enough and lightweight enough to not drag the whole thing down and prevent lift and flight. Yet it must still offer first rate coverage.
landing, the airframe and gear have to be able to put up with that is a controlled crash repeated on a regular basis.
compact, it must fit inside the hanger deck, elevators and on the deck without interruption to the space needed for fighters.
these are a
tall orders often contradictory. Meaning the engineering challenges are large and the price is higher. That's part of the reason the French chose Hawkeye, they could have developed there own naval AEW but the price was to much vs the need. The Chinese and Indians both are using helicopter types one because they are already existing and proven and two because by going SOBAR they would basically have to develop there own at a high cost over a long period.
I do believe that one day in the not to distant future there will be a STOBAR optimized AEW in fact I expect three. V22 AEW, a Russian possibly based on SU80 and a Chinese indigenous. But I don't expect that before 2019.

Short take-off on liaoning should be 105m in length, long one 195m. I think the length is measured from the front landing gear.

I know that aircraft carriers turn according to the wind direction. Its just that i got my direction wrong.

I hope we see in 2014 a J15S, J15 with buddy refueling and a J15 for electronic warfare

I'd like to see a J-15 taking off with a decent load out as soon as possible in 2014. They've conducted maximum load take-off tests onboard Liaoning, so they should've pictures

After more than a year of her commissioning they start to test her seaworthiness and combat capabilities. But shouldn't a lot of these things mentioned in the article been tested before the commissioning ? But they are definitely moving forward and i hope that by end of next year she will receive a full air wing of 16 to 18 J-15's.

Chinese Navy (PLAN) tests Liaoning Aircraft Carrier combat capability

China's first aircraft carrier, the Liaoning, has conducted more than 100 tests and training tasks since early December, when it began a training mission in the South China Sea, the navy said on Sunday. "The Liaoning successfully performed several tests of the combat system today and organized for the first time comprehensive combat training," the People's Liberation Army navy said in a statement. "Through this operation, we tested the carrier's combat capability and tried the performance of its propulsion and seaworthiness."

This is the first time the Liaoning has made a long-distance training voyage since it was commissioned into the PLA navy last year, the statement said, adding that the mission is characterized by a large number of tests, rigorous standards, complicated circumstances as well as collaboration with multiple military units.

The ship left its homeport of Qingdao, Shandong province, on Nov 26 and anchored at a naval base in Sanya, Hainan province, three days later. On Dec 5, it set out on the training mission.

Two missile destroyers, the Shenyang and Shijiazhuang, and two missile frigates, the Yantai and Weifang, participated in the mission. They escorted the carrier along the whole voyage from Qingdao to Sanya.

"The South China Sea has deep waters, strong wind and big waves, making it a suitable place for the aircraft carrier to conduct tests and training," said Senior Captain Zhang Zheng, captain of the Liaoning.

Crewmembers also have performed a series of tests on items such as the ship structure's resistance to stress, sailing speed in deep waters and stability of weapons and equipment, he added, noting that combat departments practiced exercises to defend incoming hostile aircraft, ships and submarines.

Several types of aircraft, combat ships and submarines were dispatched to cooperate with the carrier during the mission, which simulates real combat situations, according to Zhang.

After entering active service in September 2012, the Liaoning has carried out 12 sea trials and tests, including landings and takeoffs for the J-15 fighter jet.

The ship is still in the test and exercise stage, according to Senior Captain Mei Wen, Liaoning's political commissar.

"We have commanded the basic capability to operate and coordinate fighter jets and helicopters with the carrier," Mei said. "We have accumulated much experience in logistic support for the J-15 fighters and improved a lot in terms of damage control and handling of equipment malfunctions."

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Good news progress is ongoing