The U.S. aircraft register, updated daily
Models · Stol · Piston twins · data as of October 29, 2026

Stol UC-1

8 on the U.S. register. Built from 1972 to 1982; half of them date from 1980 or earlier. California has the most (2). 25% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are not named here at this time.

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

Type
Fixed-wing, multi-engine · Piston twins
Power
Piston (reciprocating), 2 engines
Common engines
Lycoming I0360 Ser (6), Lycoming Io-360-B1D (1)
Seats
5
Cruise speed
about 135 mph
Built of
aluminium
Maker on the register
Stol
Registered
earliest certificate November 27, 2017; newest January 12, 2024

Who owns them registrant type

By owner type, as a table
aircraftshare
Individual562%
LLC225%
Co-owned112%

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

VersionRegisteredBuiltShare
UC-181972 to 1982100.0%

When they were built by decade · 5 with no year on file

By decade built, as a table
aircraft
19701
19802

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

Registrations by year, as a table
aircraft
20171
20201
20211
20221
20233
20241

Registration status

By status, as a table
aircraftshare
Valid8100%

Airworthiness certificate class

By airworthiness certificate, as a table
aircraftshare
Standard788%
None on file112%

Biggest operators companies, schools and clubs

Twin Bee LLC1Aom Aircraft LLC1
Largest fleets, as a table
aircraft
Twin Bee LLC1
Aom Aircraft LLC1

Fleet pages: Aom Aircraft LLC

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

1996-07-16FTW96LA305 · UC-1 N9507U · accident near Princeton, TX · no injuries
1995-05-21LAX95LA190 · UC-1 N108CA · accident near Saipan · 3 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 Stol UC-1 aircraft are registered in the U.S.?

8 as of October 29, 2026, counting 1 version the FAA records separately.

Which state has the most Stol UC-1s?

California, with 2.

Who owns the Stol UC-1?

25% 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 Stol UC-1s on the register built?

Between 1972 and 1982; half of them in 1980 or earlier.

How many Stol UC-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 Stol UC-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 Stol UC-1 the component layer

The airframe is aluminium: sheet metal over a riveted frame, the way most aircraft have been built since the 1940s. No FAA order in the current files names this model. 3 approved modifications exist for it, the most by Aviation Products, INC.

Approved replacement parts 14 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: governor (4), cup (3), cone (3), rivet (2), brake lining (1), brake disc (1).

Approved modifications 3 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

1995-09-29SA3205SO · Installation of Appalachian stainless steel brake discs.
1994-12-07SA00462AT · Replacement of Appalachian stainless steel brake discs P/N 75-23 with Appalachian steel brake...
1974-03-18SA94NW · Installation of Woodward Governor #8907-001, unfeathering accumulators, and replacement governors #210240

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 UC-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/stol/uc-1.json.

Aircraft newest certificates first · 8

Tail no.Maker and modelOwner and baseCertificateRegisteredStatus
N250MP Stol
UC-1
Individual owner
California
Standard 2024-01-12 ValidFAA registration status code V: Valid registration. All codes
N9503U Stol
UC-1
Aom Aircraft LLC
Wilmington, Delaware
Standard 2023-11-19 ValidFAA registration status code V: Valid registration. All codes
N25BY Stol
UC-1
Individual owner
Alaska
Standard 2023-06-01 ValidFAA registration status code V: Valid registration. All codes
N940Y Stol
UC-1
Individual owner
Tennessee
Standard 2023-05-12 ValidFAA registration status code V: Valid registration. All codes
N9512U Stol
UC-1
Individual owner
Washington
Standard 2022-08-25 ValidFAA registration status code V: Valid registration. All codes
N123BR Stol
UC-1
Twin Bee LLC
Groveland, California
Standard 2021-01-26 ValidFAA registration status code V: Valid registration. All codes
N950CB Stol
UC-1
Co-owned owner
Virginia
None on file 2020-05-14 ValidFAA registration status code V: Valid registration. All codes
N950TB Stol
UC-1
Individual owner
Texas
Standard 2017-11-27 ValidFAA registration status code V: Valid registration. All codes