Future developments in aircraft design / F Whittle. [Whittle's original 1928 thesis (37p.) on Jet Propulsion by Rocket, and the Gas Turbine as a Power Plant for Aircraft, written whilst a Flight Cadet at Cranwell. In Royal Air Force notebook, later bound and bearing title 'The original "thesis" on the gas-turbine engine by Air Commodore Sir Frank Whittle'. Bears pencil comments by Cranwell's Science Professor, Prof. Sinnatt, including 'The thesis shows much careful and original thought and also a good deal of private reading', and the mark 30/30 on the front cover. There is a page missing]