Russian aircraft carrier Admiral Kuznetsov with ski-jump takeoff ramp for STOBAR

STOBAR ("short take-off but arrested recovery" or "short take-off, barrier-arrested recovery") is a system used for the launch and recovery of aircraft from the deck of an

aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft. Typically, it is the capital ship of a fleet, as it allows a ...

, combining elements of "short take-off and vertical landing" ( STOVL) with "catapult-assisted take-off but arrested recovery" (

CATOBAR CATOBAR ("Catapult Assisted Take-Off But Arrested Recovery" or "Catapult Assisted Take-Off Barrier Arrested Recovery") is a system used for the launch and recovery of aircraft from the deck of an aircraft carrier. Under this technique, aircraft ...

). Aircraft launch under their own power using a

ski-jump Ski jumping is a winter sport in which competitors aim to achieve the farthest jump after sliding down on their skis from a specially designed curved ramp. Along with jump length, competitor's aerial style and other factors also affect the final ...

to assist take-off (rather than using a

catapult A catapult is a ballistic device used to launch a projectile a great distance without the aid of gunpowder or other propellants – particularly various types of ancient and medieval siege engines. A catapult uses the sudden release of stor ...

). However, the planes are conventional, rather than STOVL aircraft, and thus require

arrestor wires An arresting gear, or arrestor gear, is a mechanical system used to rapidly decelerate an aircraft as it lands. Arresting gear on aircraft carriers is an essential component of naval aviation, and it is most commonly used on CATOBAR and STOBAR ...

to land on the ship. The STOBAR system is simpler to build than CATOBAR. , it has been used regularly on Russian, Indian, and Chinese carriers.

Advantages

Compared to CATOBAR, STOBAR is less expensive to develop. It is easier to operate than a CATOBAR configuration, which requires large number of operators to launch the aircraft. Lack of any moving parts in ski-jump makes it less expensive to maintain the launch system. It does not require any additional system to generate force required to launch the aircraft, unlike CATOBAR where an external force is needed to be generated either from steam catapult or Electromagnetic Aircraft Launch System (EMALS) to launch the aircraft.

Limitations

One major limitation of STOBAR configuration is that it only works with

fighter aircraft Fighter aircraft are fixed-wing military aircraft designed primarily for air-to-air combat. In military conflict, the role of fighter aircraft is to establish air superiority of the battlespace. Domination of the airspace above a battlefield ...

that have a high thrust-to-weight ratio such as Su-33 or

MiG-29K The Mikoyan MiG-29K (russian: Микоян МиГ-29K; NATO reporting name: Fulcrum-D) is a Russian all-weather carrier-based multirole fighter aircraft developed by the Mikoyan Design Bureau. The MiG-29K was developed in the late 1980s from ...

and thus limits the kind of aircraft that can be operated from the carrier. It is not known what restrictions ski-jump takeoff implies on maximal aircraft weight. According to some sources, in order to become airborne, the aircraft may be required to limit its weaponry and fuel package in order to reduce the launch weight of the aircraft. However, according to other sources, the

Super Hornet The Boeing F/A-18E and F/A-18F Super Hornet are twin-engine, carrier-capable, multirole fighter aircraft variants based on the McDonnell Douglas F/A-18 Hornet. The F/A-18E single-seat and F/A-18F tandem-seat variants are larger and more adv ...

can take-off from a ski-jump with a significant weapons load. Using ski-jump can limit the ability to conduct sorties faster on STOBAR aircraft carrier. STOBAR carriers must maintain a speed of in order to generate wind speed required on deck which is essential for conducting aircraft launch operations.

List of STOBAR aircraft

HAL Tejas The HAL Tejas is an Indian, single engine, delta wing, light multirole fighter designed by the Aeronautical Development Agency (ADA) in collaboration with Aircraft Research and Design Centre (ARDC) of Hindustan Aeronautics Limited (HAL) for ...

– two naval variants are being developed for the

Indian Navy The Indian Navy is the maritime branch of the Indian Armed Forces. The President of India is the Supreme Commander of the Indian Navy. The Chief of Naval Staff, a four-star admiral, commands the navy. As a blue-water navy, it operates si ...

; a prototype (NP-1) is currently undergoing flight testing. * Mikoyan MiG-29K – currently active with the Indian Navy and the Russian Navy. * Shenyang J-15 – partially based on the Su-33, operated by the

People's Liberation Army Navy The People's Liberation Army Navy (PLAN; ), also known as the People's Navy, Chinese Navy, or PLA Navy, is the maritime service branch of the People's Liberation Army. The PLAN traces its lineage to naval units fighting during the Chines ...

on . * Sukhoi Su-33 – developed from

Su-27 The Sukhoi Su-27 (russian: Сухой Су-27; NATO reporting name: Flanker) is a Soviet-origin twin-engine supermaneuverable fighter aircraft designed by Sukhoi. It was intended as a direct competitor for the large US fourth-generation j ...

and only operated by the Russian Navy.

Users

As of , three countries currently operate STOBAR-type carriers; Russia and China are the only countries that have built a STOBAR ship for operation, while both India and China have procured STOBAR ships that were built by Russia and have had them converted for their own use. India is in the process of inducting its first indigenous aircraft carrier which is undergoing extensive sea trials.

Active STOBAR aircraft carriers

References

{{DEFAULTSORT:Stobar Aircraft carriers Types of take-off and landing