Britain's latest advance in the air the first jet propelled flying boat in the world, built by Saunders-Roe at the Isle of Wight works, was successfully tested over the Solent. Fitted with two Metropolitan Vickers jet units, the plane is said to have a speed of more than 400 mph, the armament is four 20 mm cannon fitted in the nose, and it is one of three prototypes built for the Ministry of Supply. Picture shows: the test pilot Mr Geoffrey Tyson - chief test pilot of Saunders - Roe Ltd pictured in the cockpit of the flying boat after completing tests over the Solent. 30 July 1947