The U.S. aircraft register, updated daily
Models · Bell · Helicopters · data as of November 3, 2026

Bell HH-1

13 on the U.S. register across 3 versions the FAA records separately. Built from 1970. California has the most (4). 100% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are not named here at this time.

About the HH-1 from the FAA's model table

Type
Rotorcraft · Helicopters
Power
Turboshaft, 1 engine
Common engines
Honeywell T53-L13B (1)
Fuel
Jet A
Seats
15
Built of
aluminium
Makers on the register
Bell, Bell Helicopter
Registered
earliest certificate December 6, 1994; newest September 30, 2022

Who owns them registrant type

By owner type, as a table
aircraftshare
Government969%
Corporation431%

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

VersionRegisteredBuiltShare
HH-1N6—46.2%
HH-1H6—46.2%
HH-1K119707.7%

When they were built by decade · 12 with no year on file

0001111970
By decade built, as a table
aircraft
19701

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

Registrations by year, as a table
aircraft
20101
20182
20201
20221

Registration status

By status, as a table
aircraftshare
Valid13100%

Airworthiness certificate class

By airworthiness certificate, as a table
aircraftshare
None on file1292%
Experimental18%

Biggest operators companies, schools and clubs

Washoe County Sheriff Dept2U S Department of State Inl/A2Washoe County Sheriffs Office1Ventura County Sheriffs Department1US Department of State Inl/A1Santa Barbara County Sheriffs Department1Northwest Helicopters I INC1Minuteman Aviation INC1Del Rio Aviation INC1Classic Rotors Museum1City of Chicago Department of Police1
Largest fleets, as a table
aircraft
Washoe County Sheriff Dept2
U S Department of State Inl/A2
Washoe County Sheriffs Office1
Ventura County Sheriffs Department1
US Department of State Inl/A1
Santa Barbara County Sheriffs Department1
Northwest Helicopters I INC1
Minuteman Aviation INC1
Del Rio Aviation INC1
Classic Rotors Museum1
City of Chicago Department of Police1

Fleet pages: U S Department of State Inl/A · US Department of State Inl/A · Northwest Helicopters I INC · Minuteman Aviation INC · Del Rio Aviation INC · Classic Rotors Museum

Accident history NTSB records · 2 cases since 1982, 1 fatal

2022-06-02WPR22LA205 · HH-1H N91JK · accident near Reno, NV · no injuries
2013-07-23WPR13GA338 · HH-1H N233JP · accident near Mount Charleston, NV · 1 killed

The 2 most recent of 2 cases where the NTSB's make and model match this family's versions. Each aircraft's own page also shows its record. How this model compares with others, with the fleet taken into account: Accidents by model in Aviation Analytics.

Questions people ask answers refresh every morning

How many Bell HH-1 aircraft are registered in the U.S.?

13 as of November 3, 2026, counting 3 versions the FAA records separately.

Which state has the most Bell HH-1s?

California, with 4.

Who owns the Bell HH-1?

100% are registered to companies, flight schools, clubs and other organisations; the rest to individuals and co-owners, who are not named on this site at this time.

When were the Bell HH-1s on the register built?

In 1970.

How many Bell HH-1 accidents has the NTSB recorded?

2 accidents and incidents since 1982, 1 of them fatal. A model flown more shows more; the accident analytics compare models per thousand registered.

What is the Bell HH-1 made of?

The airframe is aluminium: sheet metal over a riveted frame, the way most aircraft have been built since the 1940s. The FAA's type certificate data sheet is the authority for any one model.

What the FAA has certified, ordered and been told about the Bell HH-1 the component layer

The airframe is aluminium: sheet metal over a riveted frame, the way most aircraft have been built since the 1940s. The FAA has issued 21 airworthiness directives (orders that owners must comply with) that name this model, most of them about rotorcraft systems. 7 approved modifications exist for it, the most by Dart Aerospace Limited.

FAA orders 21 airworthiness directives · newest first

2024-10-112024-19-17 · Rotorcraft flight control · flight controls
2022-12-272022-20-14 · Main Rotor Gearbox · rotorcraft systems
2022-11-222022-22-12 · Nose/Tail Landing Gear Structure/Axle · landing gear
2022-04-202022-05-10 · Cabin Equipment/Furnishings · cabin, seats and restraints
2022-03-162022-06-05 · Main Rotor System · rotorcraft systems
2021-08-302021-15-14 · Rotorcraft Tail Boom · rotorcraft systems

All orders naming the Bell HH-1

By system

Orders by system, as a table
ordersshare
Rotorcraft systems1676%
Airframe structure15%
Other and general15%
Landing gear15%
Flight controls15%
Cabin, seats and restraints15%

Approved replacement parts 5 parts manufacturer approvals

Parts a company other than the maker may make for this design and sell as FAA-approved. The companies holding the most:

Most often: support (4), power analyzer (1).

Approved modifications 7 supplemental type certificates

Changes the FAA has approved for this design, from new avionics and engines to floats and parachutes. The companies holding the most:

Latest

2026-03-27SR12332SE · Installation of Mechanical Specialties, LLC Human External Cargo (HEC) and non-HEC Hook System
2023-02-08SR00119DE · Installation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003, and Control Cables
2023-02-08SR09177RC · Modification of the vertical fin spar
2017-10-03SR03408CH · Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or...
2013-11-04SR01742NY · Installation of extended height landing gear.

Certificates and bulletins

Safety bulletins 1 · advice, not orders

2018-10-01SW-18-29 · Rotorcraft Tail Boom, Attach Structure Failure

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how the HH-1 links to the rest of the register

Design
Engines
Where they are
Biggest operators
Record
Airworthiness

The whole map of how records connect · these connections as data: /graph/model/bell/hh-1.json.

Aircraft newest certificates first · 13

Tail no.Maker and modelOwner and baseCertificateRegisteredStatus
N88SD Bell Helicopter
HH-1N
City of Chicago Department of Police
Chicago, Illinois
None on file 2022-09-30 ValidFAA registration status code V: Valid registration. All codes
N441PA Bell Helicopter
HH-1N
Classic Rotors Museum
Ramona, California
None on file 2020-03-30 ValidFAA registration status code V: Valid registration. All codes
N233JP Bell
HH-1H
Washoe County Sheriff Dept
Reno, Nevada
None on file 2018-12-17 ValidFAA registration status code V: Valid registration. All codes
N91JK Bell
HH-1H
Washoe County Sheriff Dept
Reno, Nevada
None on file 2018-10-29 ValidFAA registration status code V: Valid registration. All codes
N911HN Bell Helicopter
HH-1N
Santa Barbara County Sheriffs Department
Santa Barbara, California
None on file 2010-01-19 ValidFAA registration status code V: Valid registration. All codes
N800DR Bell
HH-1H
Del Rio Aviation INC
Paso Robles, California
None on file 2009-10-28 ValidFAA registration status code V: Valid registration. All codes
N8525H Bell Helicopter
HH-1N
US Department of State Inl/A
Melbourne, Florida
None on file 2007-04-17 ValidFAA registration status code V: Valid registration. All codes
N8528D Bell Helicopter
HH-1N
U S Department of State Inl/A
Melbourne, Florida
None on file 2007-04-17 ValidFAA registration status code V: Valid registration. All codes
N8529Q Bell Helicopter
HH-1N
U S Department of State Inl/A
Melbourne, Florida
None on file 2007-04-17 ValidFAA registration status code V: Valid registration. All codes
N2071S Bell
HH-1H
Minuteman Aviation INC
Missoula, Montana
None on file 2006-12-22 ValidFAA registration status code V: Valid registration. All codes
N911NV Bell
HH-1H
Washoe County Sheriffs Office
Reno, Nevada
None on file 1998-03-18 ValidFAA registration status code V: Valid registration. All codes
N205SD Bell
HH-1H
Ventura County Sheriffs Department
Camarillo, California
None on file 1995-09-27 ValidFAA registration status code V: Valid registration. All codes
N6165X Bell
HH-1K
Northwest Helicopters I INC
Olympia, Washington
Experimental 1994-12-06 ValidFAA registration status code V: Valid registration. All codes