Interstate S-1
104 on the U.S. register across 6 versions the FAA records separately. Built from 1941 to 1993; half of them date from 1941 or earlier. California has the most (11). 13% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are never named here.
About the S-1 from the FAA's model table
- Type
- Fixed-wing, single engine · Piston singles
- Power
- Piston (reciprocating), 1 engine
- Common engines
- Cont Motor A&C65 Series (46), Lycoming 0-320 Series (12), Franklin 4Ac199D&E Ser (8)
- Seats
- 2
- Cruise speed
- about 77 mph
- Maker on the register
- Interstate
- Registered
- earliest certificate October 9, 1967; newest September 20, 2026
Where they are owner's state
Who owns them registrant type
Versions as the FAA records them · click one to list only those aircraft
When they were built by decade · 20 with no year on file
Registrations by year certificates issued since 2010, including changes of owner · 2026 is the year so far
Registration status
Airworthiness certificate class
Biggest operators companies, schools and clubs
Fleet pages: Wrong Brothers Aviation LLC · Sutton Aircraft Salvage LLC · Skywagon Aero LLC · Pacific Coast Air Museum · Jj Aero LLC · Crestair Air LLC
Accident history NTSB records · 17 cases since 1982, 3 fatal
The 8 most recent of 17 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 Interstate S-1 aircraft are registered in the U.S.?
104 as of October 2, 2026, counting 6 versions the FAA records separately.
Which state has the most Interstate S-1s?
California, with 11.
Who owns the Interstate S-1?
13% 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 · 5 S-1A-65F (all versions)
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|
| N37426 | Interstate S-1A-65F |
Individual owner California |
Standard | 2025-01-14 | Valid |
| N37400 | Interstate S-1A-65F |
Skywagon Aero LLC Wilmington, Delaware |
Standard | 2010-03-03 | Valid |
| N37361 | Interstate S-1A-65F |
Individual owner North Dakota |
Restricted | 2001-07-03 | Valid |
| N37323 | Interstate S-1A-65F |
Co-owned owner Indiana |
Standard | 2001-01-22 | Valid |
| N37399 | Interstate S-1A-65F |
Individual owner Missouri |
Standard | 1997-05-13 | Valid |