Ancient Aircraft Engines

The ENV aircraft Engine of the 1930s period.

Manufactured by the London and Parisien Motor Company.
An inline eight cylinder layout in the 90 degree Vee form with a rating of 80 Horsepower.
Due to fuel octane rating, and low compression ratios engines of this time could only produce
the power for flight from cylinder capacity and this first engine from the United Kingdom,
was of around eight litres from the bore of 100 mmm and stroke of 130 mm.
With modest valve timing and a weight of near 300 pounds it reached a four pounds per
horsepower output.