Berliner donated the engine to the National Air and Space Museum, and pursued his own advanced version.
[4] His engines had a 40-pound cast nickel-steel cylinder assembly that was machined down to 6 1/2 pounds with spiraling cooling fins for strength.
A monoplane built by the Washington Aeroplane Company set an American endurance record with a Gyro Seven cylinder engine of 4 hours and 23 minutes in the air.
[6] In December 1912, Berliner traveled to Germany and set up a German manufacturing component in Adlershof to market the Gyro engines with a $500,000 capitalization.
[9] Gyro motor production ended during World War I, when a flood of advanced designs were introduced to the market.