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 not named here at this time.
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
- Built of
- aluminium
- 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
By owner type, as a table
| aircraft | share | |
|---|---|---|
| Corporation | 6 | 67% |
| LLC | 1 | 11% |
| Individual | 1 | 11% |
| Co-owned | 1 | 11% |
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
Airworthiness certificate class
By airworthiness certificate, as a table
| aircraft | share | |
|---|---|---|
| Experimental | 7 | 78% |
| None on file | 2 | 22% |
Biggest operators companies, schools and clubs
Largest fleets, as a table
| aircraft | |
|---|---|
| West Indies Investments LTD | 1 |
| Tsi Holdco INC | 1 |
| Heritage Flight Museum | 1 |
| Erickson Group LTD | 1 |
| East Iowa Air INC | 1 |
| Comanche Warbirds INC | 1 |
| Avenger LLC | 1 |
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. Each aircraft's own page also shows its record. How this model compares with others, with the fleet taken into account: Accidents by model in Aviation Analytics.
Questions people ask answers refresh every morning
How many Douglas AD-4 aircraft are registered in the U.S.?
9 as of October 23, 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 not named on this site at this time.
When were the Douglas AD-4s on the register built?
Between 1949 and 1952; half of them in 1952 or earlier.
How many Douglas AD-4 accidents has the NTSB recorded?
2 accidents and incidents since 1982, 2 of them fatal. A model flown more shows more; the accident analytics compare models per thousand registered.
What is the Douglas AD-4 made of?
The airframe is aluminium: sheet metal over a riveted frame, the way most aircraft have been built since the 1940s. The FAA's type certificate data sheet is the authority for any one model.
Connections how the AD-4 links to the rest of the register
- Douglas 305 aircraft on the register
- Douglas AD-4 3 registered
- Douglas AD-4N 3 registered
- Douglas AD-4N(A) 1 registered
- Douglas AD-4W 1 registered
- Douglas AD4-DW 1 registered
- Built of aluminium
- Wright R3350 series 1 of these aircraft · 2200 hp
- Wright R3350-26WD 1 of these aircraft · 2700 hp
- Wright R3350-32WA 1 of these aircraft · 2900 hp
- Wright R3350-42 1 of these aircraft · 3250 hp
- Oregon 2 of these aircraft
- Washington 1 of these aircraft
- Virginia 1 of these aircraft
- Texas 1 of these aircraft
- Iowa 1 of these aircraft
- West Indies Investments LTD 1 of these aircraft
- Tsi Holdco INC 1 of these aircraft
- Heritage Flight Museum 1 of these aircraft
- Erickson Group LTD 1 of these aircraft
- East Iowa Air INC 1 of these aircraft
- NTSB accidents and incidents involving the AD-4 2 cases since 1982 · 2 fatal
The whole map of how records connect · these connections as data: /graph/model/douglas/ad-4.json.
Aircraft newest certificates first · 9
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|
| N23827 | Douglas AD-4 |
Tsi Holdco INC Virginia Beach, Virginia |
Experimental | 2024-05-16 | ValidFAA registration status code V: Valid registration. All codes |
| N4277N | Douglas AD-4W |
Avenger LLC Beaverton, Oregon |
Experimental | 2016-04-25 | ValidFAA registration status code V: Valid registration. All codes |
| N959AD | Douglas AD-4N |
East Iowa Air INC Bennett, Iowa |
Experimental | 2013-10-24 | ValidFAA registration status code V: Valid registration. All codes |
| N2692 | Douglas AD-4N |
Individual owner California |
None on file | 2006-01-12 | ValidFAA registration status code V: Valid registration. All codes |
| N965AD | Douglas AD-4N(A) |
Heritage Flight Museum Burlington, Washington |
Experimental | 2004-03-08 | ValidFAA registration status code V: Valid registration. All codes |
| N91945 | Douglas AD4-DW |
Co-owned owner Delaware |
Experimental | 2002-06-07 | ValidFAA registration status code V: Valid registration. All codes |
| N4277P | Douglas AD-4 |
Erickson Group LTD Beaverton, Oregon |
None on file | 1992-12-03 | ValidFAA registration status code V: Valid registration. All codes |
| N409Z | Douglas AD-4 |
Comanche Warbirds INC Houston, Texas |
Experimental | 1991-12-04 | ValidFAA registration status code V: Valid registration. All codes |
| N91935 | Douglas AD-4N |
West Indies Investments LTD Troy, Alabama |
Experimental | 1988-11-17 | ValidFAA registration status code V: Valid registration. All codes |