| CAYLEY | Engineer who designed a biplane that became the world's first glider to carry a human aloft (6) |
| AVIETTE | Historical type of bicycle equipped with a biplane that was driven/flown solely by the strength of its pilot (7) |
| INDIA | Country that became the world's most populous in 2023 |
| CORKSCREWING | Spiralling stops team in first glider (12) |
| BLEWMEDOWN | Gracious, wind, help my glider to land! (4,2,4) |
| RINGDOTTEREL | Manoeuvre glider to tern or other bird (4-8) |
| FERRIS | GWG, 19th Century US engineer who designed a rotating fairground attraction (6) |
| EIFFEL | Engineer who designed a Parisian tower and Statue of Liberty framework (6) |
| HANSOM | Joseph, architect who designed a two-wheeled one-horse carriage with a fixed hood (6) |
| CESSNA | Clyde, U.S. aviator who designed a monoplane with a cantilever wing in 1917 (6) |
| RENNIE | John -; engineer who designed the original Waterloo Bridge, the opening of which is depicted in a painting by John Constable (6) |
| NEYMAR | Brazilian footballer who became the world's most expensive player when he joined Paris Saint-Germain from Barcelona in 2017 |
| GIOTTO | Medieval artist who designed a series of frescoes in Padua's Scrovegni Chapel |
| BRUNEL | Celebrated engineer who designed the Clifton Suspension Bridge and the Great Western steam ship. (6) |
| AVIATE | Fly a biplane, e.g. |
| FOWLER | Knighted engineer who designed the Forth Bridge (3, 4, 6) (see 13D) |
| BARLOW | Civil engineer who designed Midland Railway's terminus at St Pancras (7, 5, 6) |
| SRILANKA | In 1960, this country became the world's first to elect a female prime minister, Sirimavo Bandaranaike |
| COMET | In 1949, which de Havilland aircraft became the world's first passenger jet airliner? (5) |
| BANDARANAIKE | In 1960, she became the world's first female prime minister (8,12) |
