sentences:  During the post-war period Airwork also further expanded its business into civil aviation.This expansion was financed by its wealthy shareholders, including Lord Cowdray, Whitehall Securities, the Blue Star shipping line, Furness Withy and Thomas Loel Evelyn Bulkeley Guinness.Airwork's other air transport related activities include contracting, aircraft servicing and maintenance, sale and purchase of aircraft, operation and management of flying schools and clubs, contract charter flying, overhaul and modification of aircraft, specialised aerodrome catering and aviation insurance.