Monday, December 16, 2019

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STOBAR (Short Take-Off But Arrested Recovery), a system used for the launch and recovery of aircraft from the deck of an aircraft carrier, combines elements of short take-off and vertical landing (STOVL) with catapult-assisted take-off but arrested recovery (CATOBAR).

Aircraft launch under their own power using a ski-jump to assist take-off (rather than using a catapult). However, the planes are conventional, rather than STOVL aircraft, and thus require arrestor wires to land on the ship. The STOBAR system is simpler to build than CATOBAR. As of 2018[update] it has been used regularly on Russian, Indian, and Chinese carriers.

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.

One major limitation of STOBAR configuration is that it only works with fighter aircraft that have a high thrust-to-weight ratio such as Su-33 or MiG-29K and thus limits the kind of aircraft that can be operated from the carrier. It is not known[who?] 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 can take-off from a ski-jump with a significant[vague] weapons load. Using ski-jump can limit the ability to conduct sorties faster on STOBAR aircraft carrier. STOBAR carriers must maintain a speed of 20–30 kn in order to generate wind speed required on deck which is essential for conducting aircraft launch operations.


As of September 2019, three countries currently operate STOBAR type carriers; Russia is the only country that has 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. However, both India and China are in the process of building their own STOBAR carriers.

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