Hiller UH12C

A picture of the Hiller UH12C

The UH12 civil helicopter is one of the earliest helicopters to enter service.  First flown in 1948, the Hiller Company first marketed the aircraft for civil use.  Despite its similarity to the U.S. military’s designation system UH12 is a company designation and not a military one.  When the U.S. Army adopted the aircraft into service it was designated OH-23 and called the Raven.  The C model was the first to have a completely enclosed cockpit.  The UH12 has been in sporadic production since 1948 with over 2,300 built.

Rotor Diameter

35 ft 4 in.

Length

28 ft 6 in.

Height

9 ft 3 in.

Weight

2,500 (loaded)

Maximum Speed

84 MPH

Service Ceiling

15,000 ft

Range

150 miles

Engine

One Franklin 6V-335-B1 with 210 horsepower

Crew

2

Manufacturer
Hiller

Markings
C. T. Jensen, 1959

Designation
UH12C

Registration
N7725C

Serial Number
J345

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