experimental monoplane
Handley Page H.P.20

The Handley Page H.P.20 was an experimental monoplane modification of a de Havilland DH.9A, built to study controllable slots and slotted ailerons as high lift devices. It was the first aircraft to fly with controllable slots.
Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.
- Manufacturer
- Handley Page
- Country of origin
- United Kingdom
- First flight
- 1921-02-24
Specifications
- Max takeoff weight
- 6,500 lb
- Powerplant
- Liberty 12-N water cooled V-12
- Engines
- 1
- Seats
- 1
- Length
- 30 ft
- Wingspan
- 47 ft
- Number built
- 1
Specifications are approximate and may vary by variant. Compiled from Wikipedia (CC BY-SA).
Reference and training only. Specifications vary by variant — consult the manufacturer and the official documents.