| SIKORSKY | Igor ___, US aeronautical engineer who designed the first four- engined aeroplane (1913) |
| IGORSIKORSKY | Russian-born US aeronautical engineer who designed the first successful helicopter |
| MITCHELL | RJ, British aeronautical engineer who designed the Spitfire (8) |
| LANCASTER | Four-engined bomber, first used by the RAF in 1942 |
| FLYINGFORTRESS | A four-engined heavy bomber manufactured by Boeing (6,8) |
| BLERIOT | Louis ___, French aviator and aeronautical engineer who made the first flight across the English Channel |
| IGOR | Russian-born US aviation engineer who designed the first viable helicopter, _ Sikorsky (4) |
| WALLIS | Name the British aeronautical engineer who invented the Wellington bomber, among many other aircraft, Sir Barnes ... (6) |
| WHITTLE | Frank, English aeronautical engineer who patented the first jet engine in 1930 (7) |
| LOUIS | French aviator and aeronautical engineer who made the first cross-Channel flight in 1909 (5,7) |
| RENNIE | Scottish civil engineer who designed the first Waterloo Bridge (6) |
| DELORME | Philibert -; an architect who designed the first plans of the Tuileries Palace for Catherine de' Medici in the 16th century (2,1'4) |
| REA | ___ Irvin, who designed the first cover for The New Yorker |
| RJMITCHELL | Aeronautical engineer best known for his design of the Supermarine Spitfire |
| TUPOLEV | Andrei, Soviet aeronautical engineer born in 1888 noted for his aircraft designs (7) |
| NACELLE | Aeronautical engineer's housing? A small room in Geordieland |
| BAKER | Engineer who designed the Forth Bridge with Sir John Fowler; or, the author of The Peregrine (5) |
| ATOMICHRON | Tho' Marconi designed the first modern time machine, this ... (10) |
| STRAVINSKY | Igor ___, Russian composer best known for The Firebird and The Rite of Spring |
| WHITTLEDAWAY | Aeronautical engineer's time outside Washington gradually reduced |
