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
Each aircraft's own page already shows its NTSB accident and incident record. The model-wide record (accidents per year, fatal and non-fatal, against the number registered) is being added; it will appear here.
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 · 104
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|
| N37271 | Interstate S-1A |
Individual owner Colorado |
Standard | 1986-12-31 | Valid |
| N37386 | Interstate S-1A |
Individual owner Washington |
Standard | 1981-08-24 | Valid |
| N37428 | Interstate S-1A |
Individual owner North Dakota |
Multiple | 1976-11-24 | Valid |
| N37291 | Interstate S-1A |
Individual owner California |
Standard | 1967-10-09 | Valid |