Kemp I-4
Built by: Kemp Machine Works, Muncie, Indiana
 |
| From the, "Airplane Engine Encyclopedia" - 1921 - Public Domain |
Used
in the L.C.7, built by U.S. Airplane & Motor Engineering Company, Upper
Sandusky, Ohio, with whom Vearne C. Babcock worked as engineer from March 1919
to 1920.
The
I-4 was a four-cylinder engine rated at 35 horse-power, and capable of 1150
revolutions-per-minute. Weighing in at 181 pounds (dryweight), the engine had a power to
weight ratio of 1 HP to 5.17 lbs engine weight. The four cylinders were made from cast iron with a 4.25 inch bore and
4.5 inch stroke. Engine displacement was 255.36 cubic inches. Pistons were also
made of cast iron.
The
crankshaft is a five-bearing type, with connecting rods having “H” sections.
Lubrication was of the splash type with oil pumped from the pan underneath the
engine to lubricate the whole. Schebler carburetors and Mea magnetos were
supplied as standard equipment.
Noted for its ease of maintenance, the I-4 cost half the price of contemporary water cooled engines of equal power and was popular for first time aviators or those with a limited budget.
REFERENCES:
1. Airplane Engine Encyclopedia – by Glenn D. Angle –
1921 – Pgs 272-273
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