On 10 January 2009, it was reported that two Indian Air Force Su-30MKI fighter jets were sent to Russia for a retrofit program that would enable them to launch the missile. On 8 August 2009, Alexander Leonov, Director of the Russian Machine Building Research and Production Centre, said "we are ready for test launches." He also said that a new takeoff engine for the launching of the missile in air and at extremely high altitudes had been developed, and the initial test firing of the missile would be undertaken from the Su-30 MKI but did not specify the dates. On 26 February 2012, A. Sivathanu Pillai said that the air-launched version of BrahMos is being developed and will be tested by the end of 2012. This version of the BrahMos missile will use air-breathing scramjet propulsion technology and would be more fuel-efficient than a traditional rocket-powered missile.