Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.Supermarine Spitfire ,Battle of Britain , No. 19 Squadron RAF , RAF Fighter Command , V12 engine , List of Air Ministry specifications ,Schneider Trophy ,Supermarine Type 224 ,Heinkel He 70, NACA airfoil, Control reversal , Pressure carburetor ,Fuel starvation , Supermarine Spitfire operational history.