The U.S. aircraft register, updated daily · Carbon Free Flight by 2050
Models · Hiller · Helicopters · data as of October 2, 2026

Hiller OH-23

15 on the U.S. register across 4 versions the FAA records separately. Built from 1951 to 1973; half of them date from 1958 or earlier. Texas has the most (4). 27% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are never named here.

Hiller OH-23: Family of light helicopters
Photo: U.S. Army, Public domain, via Wikimedia Commons · Hiller OH-23 Raven on Wikipedia

About the OH-23 from the FAA's model table

Type
Rotorcraft · Helicopters
Power
Piston (reciprocating), 1 engine
Common engines
Franklin 6V-335 Series (2), None None (1), Franklin 6Vs-335 Ser (1)
Seats
4
Cruise speed
about 63 mph
Maker on the register
Hiller
Registered
earliest certificate September 9, 1998; newest August 7, 2023

Where they are owner's state

Texas4New Jersey2Washington1Virginia1Tennessee1Ohio1Nevada1Montana1Kansas1Alabama1Alaska1

Who owns them registrant type

Individual10 (67%)Corporation4 (27%)Co-owned1 (7%)

Versions as the FAA records them · click one to list only those aircraft

VersionRegisteredBuiltShare
OH-23B61951 to 195540.0%
OH-23G41962 to 196426.7%
OH-23C31955 to 197320.0%
OH-23D21958 to 195913.3%

When they were built by decade · 4 with no year on file

02457719503196011970

Registrations by year certificates issued since 2010, including changes of owner · 2026 is the year so far

0122312010220111201412020120211202232023

Registration status

Valid14 (93%)Sale reported1 (7%)

Airworthiness certificate class

Standard8 (53%)None on file6 (40%)Multiple1 (7%)

Biggest operators companies, schools and clubs

Fort Wolters Helicopter INC2Summit Sales & Leasing INC1Alaska Army Aviation Museum INC1

Fleet pages: Fort Wolters Helicopter INC

Accident history NTSB records · 4 cases since 1982, 0 fatal

1996-07-04MIA96LA176 · OH-23C N301CH · accident near Marathon, FL · minor injuries
1990-09-11MIA90LA182 · OH-23C N96168 · accident near Fort Pierce, FL · no injuries
1989-01-21FTW89LA043 · OH-23B N88785 · accident near Wichita Falls, TX · no injuries
1987-03-08LAX87DVA04 · OH-23G N99232 · accident near Delano, CA · no injuries

The 4 most recent of 4 cases where the NTSB's make and model match this family's versions. Rates per registered aircraft, phases of flight and causes are coming with the analytics stage. Each aircraft's own page also shows its record.

Questions people ask answers refresh every morning

How many Hiller OH-23 aircraft are registered in the U.S.?

15 as of October 2, 2026, counting 4 versions the FAA records separately.

Which state has the most Hiller OH-23s?

Texas, with 4.

Who owns the Hiller OH-23?

27% are registered to companies, flight schools, clubs and other organisations; the rest to individuals and co-owners, who are never named on this site.

Aircraft newest certificates first · 4 OH-23G (all versions)

Tail no.Maker and modelOwner and baseCertificateRegisteredStatus
N64881 Hiller
OH-23G
Fort Wolters Helicopter INC
Mineral Wells, Texas
None on file 2011-11-10 Valid
N62409 Hiller
OH-23G
Individual owner
Kansas
Multiple 2010-06-02 Valid
N2RU Hiller
OH-23G
Individual owner
Texas
Standard 2005-03-11 Valid
N99579 Hiller
OH-23G
Individual owner
Montana
None on file Sale reported