Northwestern PORTERFIELD 35
5 on the U.S. register across 2 versions the FAA records separately. Built from 1935 to 1954; half of them date from 1950 or earlier. Texas has the most (2). 0% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are never named here.
About the PORTERFIELD 35 from the FAA's model table
- Type
- Fixed-wing, single engine · Piston singles
- Power
- Piston (reciprocating), 1 engine
- Common engines
- Leblond 70 Series (2), Cont Motor A&C65 Series (1), Ama/Expr Unknown Eng (1)
- Seats
- 2
- Cruise speed
- about 76 mph
- Maker on the register
- Northwestern
- Registered
- earliest certificate November 2, 1981; newest October 22, 2024
Where they are owner's state
Texas2Oklahoma1New York1California1
Who owns them registrant type
Individual5 (100%)
Versions as the FAA records them · click one to list only those aircraft
| Version | Registered | Built | Share |
|---|---|---|---|
| PORTERFIELD 35-70 | 3 | 1935 to 1950 | 60.0% |
| PORTERFIELD 35 | 2 | 1954 | 40.0% |
When they were built by decade · 2 with no year on file
Registrations by year certificates issued since 2010, including changes of owner · 2026 is the year so far
Registration status
Valid5 (100%)
Airworthiness certificate class
Standard4 (80%)None on file1 (20%)
Biggest operators companies, schools and clubs
No data
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 Northwestern PORTERFIELD 35 aircraft are registered in the U.S.?
5 as of October 2, 2026, counting 2 versions the FAA records separately.
Which state has the most Northwestern PORTERFIELD 35s?
Texas, with 2.
Who owns the Northwestern PORTERFIELD 35?
0% 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
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|
| N25591 | Northwestern PORTERFIELD 35 |
Individual owner Texas |
None on file | 2024-10-22 | Valid |
| N14475 | Northwestern PORTERFIELD 35-70 |
Individual owner New York |
Standard | 2019-10-10 | Valid |
| N15457 | Northwestern PORTERFIELD 35-70 |
Individual owner California |
Standard | 2016-02-17 | Valid |
| N34719 | Northwestern PORTERFIELD 35 |
Individual owner Oklahoma |
Standard | 2007-04-25 | Valid |
| N15444 | Northwestern PORTERFIELD 35-70 |
Individual owner Texas |
Standard | 1981-11-02 | Valid |