The U.S. aircraft register, updated daily · Carbon Free Flight by 2050
Models · Northwestern · Piston singles · data as of October 2, 2026

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

VersionRegisteredBuiltShare
PORTERFIELD 35-7031935 to 195060.0%
PORTERFIELD 352195440.0%

When they were built by decade · 2 with no year on file

001221193021950

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

00011120161201912024

Registration status

Valid5 (100%)

Airworthiness certificate class

Standard4 (80%)None on file1 (20%)

Biggest operators companies, schools and clubs

No data

Accident history NTSB records · 0 cases since 1982, 0 fatal

No NTSB accident or incident records match this family's versions. Each aircraft's own page also shows its record.

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 · 2 PORTERFIELD 35 (all versions)

Tail no.Maker and modelOwner and baseCertificateRegisteredStatus
N25591 Northwestern
PORTERFIELD 35
Individual owner
Texas
None on file 2024-10-22 Valid
N34719 Northwestern
PORTERFIELD 35
Individual owner
Oklahoma
Standard 2007-04-25 Valid