Aircraft Carriers II (Closed to posting)

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Intrepid

Major
Re: PLAN Carrier Operations..News, Videos & Photos II

A short cat for initial acceleration in front of the ramp should be possible.
 

Obi Wan Russell

Jedi Master
VIP Professional
Re: PLAN Carrier Operations..News, Videos & Photos II

A short cat for initial acceleration in front of the ramp should be possible.

Yes but again, why would you need it? In the same length as a USN C-13 catapult (300ft) any naval jet aircraft in service today can reach the 80 knots required to exit the ramp. A short cat will cost you almost as much as a long cat and if you can afford the latter you may as well fit it and do the job properly. Unless you are planning to launch gliders by ski jump there is absolutely no need for a short cat or rocket assitance. Aircraft have engines, and for the last three decades these have been more than adequate to get Navy jets (and the occassional CrabAir machines) off the end of the ramp safely.

Conventional takeoff: 1 start takeoff roll. 2 reach flying speed, 3 fly.
Ski jump takeoff: 1 start takeoff roll. 2 fly. 3. reach flying speed.

Got it?
 

navyreco

Senior Member
Another thing I noticed in that Russian video.. Where are the young men? Those sailors on the flight deck look very mature. And are there any women serving on RU ships??
Probably on smaller ships... The Kuz' is probably a prestigious "appointment" (if that term makes sense) that one has to earn during his service in the Russian Navy?


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Thank you sir!
 

delft

Brigadier
Re: PLAN Carrier Operations..News, Videos & Photos II

I just explained why a ramp/cat system will never happen, but as an extra illustration of why it's a bad idea, during WW2 the Germans developed a rifle barrel that was curved to enable the soldier to fire around corners or over the lip of a trench without exposing himself to direct return fire. It worked, but the barrel was subject to excessive wear on the inside due to forcing the bullet to 'turn a corner', and the barrels had to be replaced frequently. As I said, the purpose of the ramp is to get you off the deck before you have reached flying speed. above 80 knots the forces on the nose hear rise exponentially, so by the time you get to 130+ knots the nose gear would have to be milled from a solid block of titanium and have no moving suspension just to withstand the forces on it.
If you can't design the nose wheel gear to withstand the use of the ski ramp ( and why wouldn't you built the whole cat into the ramp and increase rotation speed during acceleration ? ) you can build your aircraft with tail wheels. The tail wheel gears would need to be as complex, or a bit more, than an ordinary nose gear and not resemble that of the Supermarine Attacker, but such an undercarriage was patented in the UK forty years ago. And you need to leave the ski ramp at a lower speed than you leave a flat deck just because your velocity has a vertical component.
If your flattop has a length of 340 meters and you have only steam cats it is entirely reasonable to give your steam cats a length 103 meter. If your flattop is substantially shorter and you have EM cats it makes sense to combine the two methods of reducing the area needed for aircraft launch.
Your remark about the German rifle is entirely beside the bridge.
 

Mysterre

Banned Idiot
Re: PLAN Carrier Operations..News, Videos & Photos II

The obvious: the handicap of ski-jump takeoff.

But you can't afford to be picky when you don't have steam cat or EM cat, either.
Or, it could be as simple an explanation as that the tempo of Russian carrier ops is slow enough that they can just launch one at a time using the position that gives them the highest payload capability.
 

Jeff Head

General
Registered Member
Another thing I noticed in that Russian video.. Where are the young men? Those sailors on the flight deck look very mature.
Every time I have seen the Kuznetsov, particularly with the pilots, that is what I have seen too.

Very mature, older pilots who in the US would be individual squadron commanders, or of age to be the CAG,

It's as if though the Russians have a few people to fly those SU-33s and they have been doing so for 20 years. Now, with them being phased out soon, we probably will not see any younger blood for those aircraft...though I have to say, when the Mig-29Ks were tested on the Kuznetsov and on the Indian Vikramaditya, I seemed to be the same.

The Japanese made that mistake in World War II, keeping there very most experienced fighters always on the tip end...and it cost them dearly because when they lost them, they guys coming in behind had very little experience. The US would take its very best and send them back to train the others.

On another point, I just read this morning where the anticpated Carrier Air Wing in the 2020s would consist of the following:

2 Squadrons of Super Hornets, 12 each or 24 aircraft
2 Squadrons of F-35C Strike aircraft or 24 aircraft
1 Squadron of EA-18G Growlers with 5 aircraft
1 Squadron of E-2D Hawkeyes with 5 aircraft
2 Squadrons of S-60 Seahawks of 8 aircraft or 16 aircraft
1 Squadrob of 6 UCAV aircraft

That's a total of 80 aircraft.
 

Air Force Brat

Brigadier
Super Moderator
Re: PLAN Carrier Operations..News, Videos & Photos II

Or, it could be as simple an explanation as that the tempo of Russian carrier ops is slow enough that they can just launch one at a time using the position that gives them the highest payload capability.

And more importantly safety, while the forward stations may be used they limit fuel and payload, I'm not convinced that 80kt is a limit for the ramp, notice the Chinese used the aft position for their departure at what is presumably a fairly light weight, but as Obi Wan has stated ramps are cheating, lose an engine, and you're a swimmer, period!
 

bd popeye

The Last Jedi
VIP Professional
On another point, I just read this morning where the anticpated Carrier Air Wing in the 2020s would consist of the following:

2 Squadrons of Super Hornets, 12 each or 24 aircraft
2 Squadrons of F-35C Strike aircraft or 24 aircraft
1 Squadron of EA-18G Growlers with 5 aircraft
1 Squadron of E-2D Hawkeyes with 5 aircraft
2 Squadrons of S-60 Seahawks of 8 aircraft or 16 aircraft
1 Squadron of 6 UCAV aircraft

That's a total of 80 aircraft.

Jeff, could you post a link to where you read this? I kinda doubt that the any UCAS will be ready by 2020.. they are not funded beyond the two that are in R & D now.

Jeff, I guess the USN & USMC will simply retire the F-18C squadrons...It's about time.

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To another subject.. The IKE CSG and Iwo Jima ARG are coming home.. However the IKE will re-deploy in the Late Feb or March time frame...

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By Dianna Cahn
The Virginian-Pilot
© December 15, 2012

NORFOLK
Homecomings next week for about 6,300 sailors of the Eisenhower carrier strike group and the Iwo Jima amphibious ready group will occur ahead of schedule, the Navy announced Friday.
Ships from both groups were slated to return late next week. But now they're due to arrive a few days early to beat possible bad weather, said a Navy spokeswoman, Chief Petty Officer Mary Popejoy.
The dock landing ship Gunston Hall, part of the amphibious group, will be the first to arrive. It's scheduled to pull into Joint Expeditionary Base Little Creek on Tuesday.
The other two ships in the group, the amphibious assault ship Iwo Jima, and the New York, a ship built with steel from the wreckage of the World Trade Center, will return to Norfolk Naval Station on Thursday.
The Eisenhower will arrive at Norfolk Naval Station on Wednesday, preceded by its carrier air wing, which returns to Oceana Naval Air Station on Tuesday. Its escort, the guided missile cruiser Hue City, will head to its home port of Mayport Naval Station in Florida.
The ships in the Iwo Jima had begun their voyage home last month but were ordered to turn around and head back to the Mediterranean after fighting broke out between Israel and Palestinians in the Gaza Strip.
The Eisenhower carrier strike group left in June for a nine-month deployment, but its replacement, the West Coast- based Nimitz, is under repair and will not be ready until next summer.
To bridge the gap, the Navy is bringing the Eisenhower home early for a deck resurfacing. A few months later, the ship will redeploy for another six- to seven-month cruise in the Arabian Gulf.
Three other ships from the Eisenhower strike group remain in the Gulf and will return as scheduled in March.
 
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