Westlands first commercial aeroplane was designed from the outset, by Arthur Davenport, as a
passenger-carrying airliner. It was given the name Limousine to introduce an element of
luxury to the rather spartan style of flying then existing; the cabin was upholstered in the
style of a luxury motorcar of that period. The passengers were seated two in
front and one left of the pilot; the passenger in front of the pilot was facing the pilot,
but the pilot was seated on a 2 ft 6 in (0.76 m) pedestal so his head protruded through the a
hole in the cabin roof.
The prototype Limousine I (G-EAFO, c/n WAC.1) flew for the first time, with the temporary
registration K-126, during July 1919 by A. Keep. It was powered by a 275 hp Rolls-Royce
Falcon III engine, as was the later Limousine II (G-EAJL, c/n WAC.2) external differing in
having a slightly smaller wing span, increased fin and rudder area, and a rectangular
radiator.
The second Limousine II (G-EAMV, c/n WAC.3) flew for the first time in April 1920 and was
used as a test bed for the 410 hp Cosmos Jupiter radial engine, later this was reverted to
the Falcon III engine. A batch of four was started, G-EARE to G-EARH, c/n WAC.4 to WAC.7;
G-EARE and G-EARF were powered by a 300 hp Hispano-Suiza eight-cylinder in-line V-engine, G-EARH was
never completed.
Limousine II G-EARE and G-EARF were used by Instone Air Line on their Paris and Brussels routes
only until 1923 when they were scrapped. Limousine I G-EAFO and II G-EAJL were leased to Air Post
of Banks Ltd. to exploit a two-month experimental airmail service between Croydon (London)
and Le Bourget (Paris), after that they, plus G-EAMV and G-EARG, went to Canada to be used by the
Aerial Survey Company of New Foundland, also until 1923.