sentences:  The Tata aircraft factories as well as the Hindustan aircraft factory were switched over to the repair and overhaul of aircraft for the air forces.In 1942, Vintcent set out on a flight to India to put into effect a plan for which he had fought long and tenaciously - the establishment of an aircraft factory in India.The RAF Hudson in which he had been given a place in the crew to expedite his return disappeared without trace after taking off from a Cornish aerodrome.