Armstrong Whitworth H.M.A. R.33, interior of engine compartment, about 1919

Armstrong Whitworth R.33, interior of an engine compartment in about 1919.

The R.33 was built in 1919 by Armstrong Whitworth in Barlow, North Yorkshire. It had the longest career of any British airship and was considered the luckiest. The RAF investigated the use of airships as a type of aircraft carrier, extending the range of fighter aircraft, but decided against the idea after trials using the R.33. The airship was dismantled in 1928.