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2,000 mile Test of Three Lightweights

21st July 1950, Page 32
21st July 1950
Page 32
Page 32, 21st July 1950 — 2,000 mile Test of Three Lightweights
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ATROUBLE-FREE trip of nearly 2.000 miles from the Midlands to Land's End and John o'Groats was completed last week by a In-Van, a By-Van and a Rixi. The run was organized by the manufacturer, Light Delivery Vehicles, Ltd., Lever Street, Wolverhampton.

A full load was carried by each machine, and the fuel-consumption rate of the three-wheelers was said to be approximately 75 m.p.g. The By-Van two-wheeler was claimed to have recorded 80 m.p.g., and the " fleet " kept together at an average speed of 16 m.p.h. The longest distance covered on any day of the test, which lasted a fortnight, was over 200 miles.

The 168 c.c. two-stroke engine fitted to all the vehicles is of an entirely new design with a " square " bore and stroke of 60 mm. and a power output of 6 b.h.p. at 4,000 r.p.m. The castiron cylinder, the aluminium cylinder head and the Elektron crankcase are deeply finned to ensure cool running in tropical temperatures, an additional advantage of the finned crankcase being the higher density of the cooled fuel charge.

The piston is of the deflectorless domed type and the compression ratio is 5.8 to 1. A notable feature of the engine performance is the flat torque curve which is obtained by giving the intake gases a high swirl rate.

Unit construction of engine and gearbox is employed, with a heavy flywheel and a single-plate clutch. A single-piece crankshaft has replaced the built-up shaft of the orginal unit.

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Locations: Wolverhampton

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