Porterfield CP-50
8 on the U.S. register. Built from 1939 to 1948; half of them date from 1939 or earlier. Washington has the most (1). 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 CP-50 from the FAA's model table
- Type
- Fixed-wing, single engine · Piston singles
- Power
- Piston (reciprocating), 1 engine
- Common engines
- Cont Motor A50 Series (4), Cont Motor A&C65 Series (1), Ama/Expr Unknown Eng (1)
- Seats
- 2
- Cruise speed
- about 76 mph
- Built of
- steel tube, wood and fabric · A steel-tube fuselage and wooden wings under fabric.
- Maker on the register
- Porterfield
- Registered
- earliest certificate April 21, 1997; newest June 4, 2022
Where they are owner's state
Who owns them registrant type
By owner type, as a table
| aircraft | share | |
|---|---|---|
| Individual | 5 | 62% |
| LLC | 1 | 12% |
| Corporation | 1 | 12% |
| Co-owned | 1 | 12% |
Versions as the FAA records them · click one to list only those aircraft
| Version | Registered | Built | Share |
|---|---|---|---|
| CP-50 | 8 | 1939 to 1948 | 100.0% |
When they were built by decade · 2 with no year on file
Airworthiness certificate class
By airworthiness certificate, as a table
| aircraft | share | |
|---|---|---|
| Standard | 6 | 75% |
| None on file | 2 | 25% |
Biggest operators companies, schools and clubs
Largest fleets, as a table
| aircraft | |
|---|---|
| Western Antique Aeroplane & Automobile Museum | 1 |
| Shannon Aviation LLC | 1 |
Fleet pages: Western Antique Aeroplane & Automobile Museum
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. How models compare: Accidents by model in Aviation Analytics.
Questions people ask answers refresh every morning
How many Porterfield CP-50 aircraft are registered in the U.S.?
8 as of October 23, 2026, counting 1 version the FAA records separately.
Which state has the most Porterfield CP-50s?
Washington, with 1.
Who owns the Porterfield CP-50?
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 Porterfield CP-50s on the register built?
Between 1939 and 1948; half of them in 1939 or earlier.
What is the Porterfield CP-50 made of?
A welded steel-tube fuselage and wooden wings, all covered in fabric: the construction of the 1930s and 1940s, which makes wood rot and fabric age the inspection items. A steel-tube fuselage and wooden wings under fabric. 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 Porterfield CP-50 the component layer
A welded steel-tube fuselage and wooden wings, all covered in fabric: the construction of the 1930s and 1940s, which makes wood rot and fabric age the inspection items. A steel-tube fuselage and wooden wings under fabric. No FAA order in the current files names this model. 1 approved modification exist for it, the most by Poly-Fiber INC..
Approved modifications 1 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
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 CP-50 links to the rest of the register
- Porterfield 77 aircraft on the register
- Porterfield CP-50 8 registered
- Built of steel tube, wood and fabric · A steel-tube fuselage and wooden wings under fabric.
- Continental A50 series 4 of these aircraft · 50 hp
- Continental A65 / C65 series 1 of these aircraft · 65 hp
- Washington 1 of these aircraft
- Oregon 1 of these aircraft
- Missouri 1 of these aircraft
- Michigan 1 of these aircraft
- Iowa 1 of these aircraft
- Western Antique Aeroplane & Automobile Museum 1 of these aircraft
- Shannon Aviation LLC 1 of these aircraft
- NTSB accidents and incidents involving the CP-50 0 cases since 1982 · 0 fatal
- Approved modifications for the CP-50 1 supplemental type certificates
The whole map of how records connect · these connections as data: /graph/model/porterfield/cp-50.json.
Aircraft newest certificates first · 8
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|
| N25422 | Porterfield CP-50 |
Individual owner Washington |
None on file | 2022-06-04 | ValidFAA registration status code V: Valid registration. All codes |
| N25495 | Porterfield CP-50 |
Shannon Aviation LLC Drexel, Missouri |
Standard | 2020-02-25 | ValidFAA registration status code V: Valid registration. All codes |
| N21994 | Porterfield CP-50 |
Individual owner Iowa |
Standard | 2018-02-12 | ValidFAA registration status code V: Valid registration. All codes |
| N21987 | Porterfield CP-50 |
Co-owned owner California |
Standard | 2016-07-19 | ValidFAA registration status code V: Valid registration. All codes |
| N25437 | Porterfield CP-50 |
Individual owner Arkansas |
None on file | 2015-12-22 | ValidFAA registration status code V: Valid registration. All codes |
| N21973 | Porterfield CP-50 |
Western Antique Aeroplane & Automobile Museum Hood River, Oregon |
Standard | 2015-06-02 | ValidFAA registration status code V: Valid registration. All codes |
| N25436 | Porterfield CP-50 |
Individual owner Michigan |
Standard | 2014-02-24 | ValidFAA registration status code V: Valid registration. All codes |
| N25439 | Porterfield CP-50 |
Individual owner Delaware |
Standard | 1997-04-21 | ValidFAA registration status code V: Valid registration. All codes |