Britain's New Jet Bomber In Flight -- The new Avro 698 in flight. On Saturday (August 30th) Britain took off the secret list the world's first four-engined operational delta bomber, the Avro 698. On the same day the new jet aircraft successfully made its first flight. Afterwards, Mr. Duncan Sandys, Minster of Supply disclosed that the Government had ordered an appreciable number' of these new bombers without writing for the prototype to carry out the usual flying trails. Designed to fly at alti