Blackburn B-20
| Blackburn B-20 | |
|---|---|
| General information | |
| Type | Prototype flying boat |
| National origin | United Kingdom |
| Manufacturer | Blackburn Aircraft |
| Designer | John Douglas Rennie |
| Primary user | Royal Air Force |
| Number built | 1 |
| History | |
| First flight | 26 March 1940 |
The Blackburn B-20 was an experimental aircraft, first flying in 1940, that attempted to drastically increase the performance of flying boat designs. Blackburn Aircraft undertook an independent design study based on a patent filed by their chief designer, John Douglas Rennie for a retractable pontoon float that formed the planing hull.