UH-12 & Stanley Hiller
By restoring, servicing and flying UH-12s, we are celebrating the genius of Stanley Hiller, jr. Hiller was a true visionary and United Helicopter are proud to continue his helicopter and aviation legacy. We accept and advocate the general Helicopter and Aviation community's opinion that with the UH-12; Stanley Hiller "got it right"!
The UH-12 first performed as a utility, observation, and MedEvac helicopter during the Korean War.
Model numbers ranged A through G. The H-23A had a sloping front windshield. The H-23B was used as a primary helicopter trainer. Beginning with the UH-23C, all later models featured the "Goldfish bowl" canopy similar to the Bell 47.
At United Helicopter, we specialize in restoring B and C models to "zero-time" since overhaul FAA certified helicopters. We only use the large round bubble as it is readily available and offers superior visibility.
The UH-12 uses Hiller's "Rotor-Matic" cyclic control system, with two small servo rotor paddles offset 90 degrees to the main rotor blades. The paddles are attached to the control column, so that movement of the column will cause the pitch of the servo paddles to change, loading the main rotor blade so that the desired cyclic changes to the rotor occurs. This "simple" but genius system contributes to more stabilized flight and lighter control inputs without the use of hydraulics.
The UH-12 has a top speed of 84 mph (73 knots). It has a two-bladed main rotor, a metal two-bladed tail rotor. Both the UH-12B and the UH-12C are powered by a Franklin O-335-5D engine.
Staley Hiller, jr. (1924-2006) was a pioneer in helicopter design and development.
At 8 years old Hiller "swiped" the engine from the family washing machine to power a homemade go-cart around his neighborhood.
By 10, Hiller had learned to fly a plane.
At 12, Hiller had invented a die-casting machine with his father that led him to develop gas-propelled mini-race cars, which turned into a business that made him $100,000 a year by the time he was 17.
Stanley Hiller, Jr., began his career as one of the world's three principal developers of vertical flight, while still a teenager!
At the age of 15 he was admitted to the University of California, Berkeley. He designed and built the world's first successful coaxial helicopter (today this technology is applied in the world's fastest helicopter, the Sikorsky X2!).
Hiller innovations in the technology of vertical flight included the first helicopter flown in the western United States, the world's first successful co-axial helicopter, the famed Flying Platform, the one-man foldable "Rotorcycle," the unique "Hornet" helicopter powered by rotor-tip-mounted ramjet engines, and the first high-speed vertical take-off-and-landing tilt-wing troop transport (not too dissimilar from the Bell Boeing V-22 Osprey!). Among Hiller's even more futuristic designs, he envisioned flying bridges and flying submarines; don't be surprised if Sikorsky, Bell, Boeing or another major aircraft manufacturer decides it's time to incorporate more of his concepts.
In 1966, Hiller began a remarkable second career, applying management techniques widely sought in the turnaround of troubled American companies.
In retirement, he created The Hiller Aviation Museum; an education-based aviation museum. He liked to drop in unannounced and serve as a volunteer.
In his 78th year, Stanley Hiller was awarded Smithsonian's 2002 National Air and Space Museum Trophy for Lifetime Achievement, "for a distinguished career as a leader in aviation innovation and excellence." That year also, his aviation community honored his lifelong contribution to the progress of aviation with its Medal of Achievement, presented by the San Francisco Aeronautical Society.
For more information on Stanley Hiller jr. and his legacy, please visit the Hiller Aviation Museum website.
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