An aircraft flying at 40,000 feet can be heard to break the sound barrier when it achieves a speed of how many miles per hour?
By what Indian name is the fighter aircraft 'Jaguar', jointly developed by Britain and France, inducted into Indian Air Force (IAF) fleet ?
Launched on 4 March 2001 as the largest ship operated by the U S Navy, this aircraft carrier is named after which past U S president?
