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Newbauer Vertical Airplane Co
(Valentine) Newbauer Vertical Airplane Co
Monterey Park CA.
In 1927 Valentine Newbauer built a single-place open helicopter with two propeller-type (coaxial?) rotors and a tractor prop. A model was built, powered by a 1.5hp engine. Newbauer claimed it lifted 60 pounds, which is judged by experts to be highly improbable.
He was engaged in helicopter experiments from 1917-27 and held several patents. One project was entered in the 1924 British helicopter competition.

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