Douglas AD-4
9 on the U.S. register across 5 versions the FAA records separately. Built from 1949 to 1952; half of them date from 1952 or earlier. Oregon has the most (2). 78% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are never named here.
About the AD-4 from the FAA's model table
- Type
- Fixed-wing, single engine · Piston singles
- Power
- Piston (reciprocating), 1 engine
- Common engines
- Ama/Expr Unknown Eng (2), Wright R3350-42 (1), Wright R3350-32Wa (1)
- Seats
- 2
- Maker on the register
- Douglas
- Registered
- earliest certificate November 17, 1988; newest May 16, 2024
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 · 4 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: Tsi Holdco INC · Heritage Flight Museum · Comanche Warbirds INC · Avenger LLC
Accident history NTSB records · 2 cases since 1982, 2 fatal
The 2 most recent of 2 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 Douglas AD-4 aircraft are registered in the U.S.?
9 as of October 2, 2026, counting 5 versions the FAA records separately.
Which state has the most Douglas AD-4s?
Oregon, with 2.
Who owns the Douglas AD-4?
78% 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 · 1 AD4-DW (all versions)
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|
| N91945 | Douglas AD4-DW |
Co-owned owner Delaware |
Experimental | 2002-06-07 | Valid |