Just after World War I Bert Brown served his engineering apprenticeship at The Eastleigh Railway Works. Afterwards he and three friends joined Saunders refurbishing bombers for the RAF on the Isle of Wight. Later Bert moved to Supermarine to work with R. Mitchell to build the S6, S6A and S6B Schneider Trophy winning floatplanes. Then he went to Short Brothers at Rochester as Chief Inspector of Flying Boats until the war started. In 1940 Bert was sent to Cambridge as Chief Inspector to run a repair organisation called Sebro that was responsible for repairing and rebuilding the Stirling four-engine bombers. They ended up making airworthy over one thousand military aircraft for both the RAF and USAAF. Bert developed close relationships with the RAF pilots and his engineers that remained for the rest of their lives. His success was so great that the Germans tired to kill him and destroy Sebro on a number of occasions. Luckily they failed. This book is a tribute to him and all aeronautical engineers who have made and still make flying safer for all of us.