STOBAR aircraft Ski-jump performance (SU-33/J-15)


Jeff Head

General
Staff member
Super Moderator
On another country's flattops, from Marine Forum Daily News:

Would Rafale be able to take off with a full weapons load from Vikramaditya, which is smaller than Liaoning? :rolleyes:
Without the CATs...IMHO...nope, no way.

The Mig-29K is a good aircraft. And the Indians are doing a LOT of exercising and training. Seeing a Rafale take off of the Vikram would be neat.

But without the CATs, I simple do not believe they could get full load fuel and weapons at any time for either aircraft.
 
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bd popeye

The Last Jedi
VIP Professional
A STOBAR equipped CV could not launch aircraft like these Intruders with a FULL load. When launching on a strike missions all USN aircraft have a full bag of fuel along with the weapons..

 
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delft

Brigadier
OT
Prototype Intruders had jet pipes that could be deflected down ( See
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), I presume to make use of smaller flattops with weaker cats. This explains the position of the engines that is much farther forward than in other aircraft.
Oddly enough there was a Fokker jet airliner design even some ten years earlier with similarly forward engines, F-26 (
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).
 

bd popeye

The Last Jedi
VIP Professional
I presume to make use of smaller flattops with weaker cats.
Intruders were deployed only aboard Forrestal, Kitty Hawk & Nimitz class carriers.

Essex class could have launched Intruders. They launched Skywarriors why not Intruders? Never happened to my knowledge.

US Navy catapults as installed aboard carriers.

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Jeff Head

General
Staff member
Super Moderator
Intruders were deployed only aboard Forrestal, Kitty Hawk & Nimitz class carriers.

Essex class could have launched Intruders. They launched Skywarriors why not Intruders? Never happened to my knowledge.

US Navy catapults as installed aboard carriers.

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Makes you wonder.

They were launching Sky Warriors and Vigilantes too, and both of those are big aircraft!
 

Obi Wan Russell

Jedi Master
VIP Professional
What is the maximum speed, a J-15/Su-33 can go over the ramp?
Nothing leaves a ski jump much faster than about 80 knots; that's the whole point of the ramp, to get you airborne before you've reached flying speed. If you were to take off from the ramp like a car or motorbike, you'd fly for a while then drop back to earth/sea once your momentum ran out. Jet Aircraft are still accelerating when they leave the ramp, and they reach fully wing-borne flying speed a few hundred feet ahead of the ship and about 200ft above sea level. Hitting the ramp at higher entry speeds can lead to nosewheel oleo collapse.ski jump explained.JPG When people talk about integrating a ski jump with an EMALS they're just showing they don't understand how either system works. If you can get an aircraft to flying speed by the time it leaves the deck, as a catapult does, then you simply have no need for a ski jump. The ramp is the cheap and easy way to do it, the penalty for non-vectoring thrust aircraft like the SU-33/J-15 is decreased payload/fuel load, limiting the potential usefulness of the aircraft.
 

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