Model Range
Production of the 1915 range continued for most of the year until
civilian production was suspended by the British Government's Ministry of
Munitions on the 3 November 1916
The the 3½ h.p. Standard model continued to be
produced for the War Department as a 'General Service' model
(engines stamped 'GS'). The 1916 catalogue showed it used for
side-car outfits.
Both 6 h.p. and 8 h.p. v-twin machines were
listed in the year's catalogue. The former presumably the AKD
(Abingdon King Dick) engined machine from the previous year. The 8
h.p. model involved fitting a Swiss MAG engine of 996cc (82x94mm)
into the frame of the 6 h.p. machine. These machines were
supplied to various Allied armies as ambulance and armoured (machine
gun) outfits.
A belt-driven Sunbeam (the only one ever
manufactured) was built to French Government specification. Its 5
h.p. rating was the result of a modified 3½ h.p. engine to give a
capacity of 550cc (85x96mm) - based on George Dance's pre-war
experimentations. The gearbox was also unconventional for Sunbeam,
having both primary and final drives together on the nearside of the
machine. Robert Cordon Champ refers to a production run of less than
1,000 machines.
Sources:
* Robert Cordon Champ, 1980, 'The Sunbeam Motorcycle'. Haynes Publishing.
* Robert Cordon Champ, 1989, 'The Illustrated History of Sunbeam Bicycles
and Motorcycles'. Haynes Publishing.
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