[1] Scott-Paine worked for Noel Pemberton Billing dealing in yachts, eventually in 1913 forming Pemberton-Billing Ltd (with 'Supermarine' as the telegraphic address), with Hubert the factory manager at Woolston, Hampshire.
In 1924 Imperial Airways was formed by the merger of Scott-Paine's British Marine Air Navigation Co Ltd and three other airlines.
Many sophisticated award-winning racing boats were produced, an example being Miss England which is now on display at the Science Museum (London).
During 1932 and 1933 Scott-Paine and Fred Cooper designed and built the single-engined Miss Britain III as a Harmsworth Trophy challenger.
In 1934 Miss Britain III set the world record for a single-engined boat of 110.1 mph.
Scott-Paine and George Selman designed and built a new 70-foot (21 m) private venture PV70, a seagoing MTB with three marinised Rolls-Royce Merlin engines.
On 3 October Scott-Paine met President Roosevelt and senior Elco representatives at the White House to authorize the creation of a new naval arm, the PT Boat Squadrons.
After the passing of Lend-Lease in 1941 comparative trials, nicknamed the Plywood Derbys, were held between rival American boatbuilders, Elco winning both.
In December 1944, Scott-Paine received a cheque for $200,000 with an accompanying letter of appreciation for his contributions made to the development of the PT boat from Secretary of the Navy James Forrestal.