Aircraft : $b its development in war and peace and its commercial futureDavid, Evan John
History
Aircraft : $b its development in war and peace and its commercial future
David, Evan John
Aeronautics; Airplanes
BRITISH EFFORTS TO FLY THE ATLANTIC
Captain Hawker, with his Sopwith, was the first to get to St. John’s on
March 4. He was quickly followed by Captain Raynham and his Martinsyde.
Owing to the constant bad weather which has obtained for seven weeks,
the British fliers had not dared to attempt the flight until Sunday,
May 18, when Hawker and Raynham started. Everything from snow to
the 70-mile gale which blew on April 15 has been experienced at St.
John’s. The storm continued throughout that and the next morning. The
mechanicians at the hangars of the two flying-camps spent the night
watching and guarding the aeroplanes. The Martinsyde plane, which was
housed in one of the portable canvas hangars used by the British army
in the war, was in danger of injury for a time, when the gale ripped up
the pegs that anchored the canvas flies of the hangar, and for a time
threatened to snatch the whole thing into the air. These storms have
made the grounds impossible for taking off, and as the fliers hoped to
take advantage of the full moon, which was beginning to gradually wane,
the opportunities for flying by moonlight disappeared and a second moon
was on the wane before they started.
On March 4 Captain Hawker landed at St. John’s, Newfoundland, with his
Sopwith plane, and his five mechanics began to assemble the machine,
which follows the general lines of construction adopted by the Sopwith
war-plane designers. It is 46 feet wide and 31 feet long, with a flight
duration of 25 hours at 100 miles an hour. During a daylight-to-dusk
duration test Commander Grieve and Pilot Hawker covered over 900 miles
in 9 hours 5 minutes, exactly half the distance between Newfoundland
and Ireland. The Rolls-Royce engine develops 375 horse-power at 1,800
revolutions of the crank-shaft. A four-bladed propeller is used geared
down to 1,281 revolutions. The Sopwith machine weighs 6,000 pounds
fully equipped for the transatlantic flight. In the trial test the
engine consumed 146 gallons of petrol—slightly over one-third the
capacity of the tanks, which are placed behind the engine and in front
of the cockpit in which Major Hawker and Commander Grieve sit.
At the end of the 900-mile tryout the engine developed exactly the same
power as at the start, which leads Major Hawker to believe the engine
will continue to perform the same for the rest of the distance.
Major Hawker proposed leaving St. John’s, Newfoundland, about 4 o’clock
in the afternoon, and travelling through the night they hoped to pass
the south coast of Ireland shortly before noon the following day,
English time, arriving at the Brooklands aerodrome, near London, at 4
o’clock, a total flying time of 19 hours and 30 minutes.
Public-domain text, read in full here on John Shaqi.
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