control car is slung, which contains all navigating instruments
and the various controls. Adjoining this is the wireless cabin,
which is also fitted for wireless telephony. Immediately aft of
this is the forward power car containing one engine, which gives
the appearance that the whole is one large car.

Amidships are two wing cars each containing a single engine.
These are small and just accommodate the engine with sufficient
room for mechanics to attend to them. Further aft is another
larger car which contains an auxiliary control position and two
engines

It will thus be seen that five engines are installed in the ship;
these are all of the same type and horse-power, namely, 250
horse-power Sunbeam. R 33 was constructed by Messrs. Armstrong
Whitworth Ltd., while her sister ship R 34 was built by Messrs.
Beardmore on the Clyde.

In the spring of 1918, R 33 and R 34 carried out several flight
trials, and though various difficulties were encountered both
with the engines and also with the elevator and rudder controls,
it was evident that, with these defects remedied, each of these
ships would prove to be singularly reliable.

On one of these trials made by R 34, exceedingly bad weather was
encountered, and the airship passed through several blinding
snowstorms; nevertheless the proposed flight of some seventeen
hours was completed, and though at times progress was practically
nil owing to the extreme force of the wind, the station was
reached in safety and the ship landed without any contretemps.