| Places | |
|---|---|
| Accession Number | REL/02256 |
| Collection type | Technology |
| Object type | Aircraft component |
| Physical description | Brass |
| Maker |
Unknown |
| Place made | United Kingdom |
| Date made | c 1930's - 1940's |
| Conflict |
Period 1930-1939 Second World War, 1939-1945 |
Venturi and mounting bracket : DH82 Tiger Moth
Description
Brass venturi and mounting bracket for a de Havilland DH82 Tiger Moth biplane. The Air Ministry stamp is impressed near the intake nozzle while the part number, 6A 370 also appears near this end. Remnants of silver paint are on the inside and outside of the venturi and mounting bracket.
History / Summary
This type of instrument was used on board slower flying aircraft such as biplanes to measure the relative airspeed of the aircraft in the air. It did this by having air pass through it, giving a differential pressure airspeed indication. Pitot tubes replaced this type of aerial instrumentation in faster aircraft.
This particular venturi is from a de Havilland DH82 Tiger Moth, a significant aircraft type operated by the Royal Australian Air Force (RAAF) from the 1930's to the 1950's in the training of thousands of aircrew. These aircraft were both manufactured in the United Kingdom and Australia during the war.
Pre-Second World War DH82 TIger Moth aircraft in RAAF service were painted in an overall silver scheme. This object has remnants of this type of paint on both the inside and outside of the venturi. The War Memorial has a DH82 Tiger Moth in its collection, finished in an overall "Trainer Yellow" paint scheme.