Waco DSO
7 on the U.S. register. Built from 1929. California has the most (2). 57% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are not named here at this time.
About the DSO from the FAA's model table
- Type
- Fixed-wing, single engine · Piston singles
- Power
- Piston (reciprocating), 1 engine
- Common engines
- Wright Hispano A&I (1), Hispano e (1), Cont Motor W670 Series (1)
- Seats
- 3
- Cruise speed
- about 79 mph
- Built of
- steel tube, wood and fabric · A biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering.
- Maker on the register
- Waco
- Registered
- earliest certificate January 20, 2006; newest February 19, 2026
Where they are owner's state
Who owns them registrant type
By owner type, as a table
| aircraft | share | |
|---|---|---|
| Corporation | 3 | 43% |
| Co-owned | 2 | 29% |
| LLC | 1 | 14% |
| Individual | 1 | 14% |
Versions as the FAA records them · click one to list only those aircraft
| Version | Registered | Built | Share |
|---|---|---|---|
| DSO | 7 | 1929 | 100.0% |
Airworthiness certificate class
By airworthiness certificate, as a table
| aircraft | share | |
|---|---|---|
| Standard | 3 | 43% |
| None on file | 3 | 43% |
| Restricted | 1 | 14% |
Biggest operators companies, schools and clubs
Largest fleets, as a table
| aircraft | |
|---|---|
| Western Antique Aeroplane and Automobile Museum | 1 |
| Rare Aircraft LTD | 1 |
| Flying L Aircraft INC | 1 |
| Artemis Aviation Group LLC | 1 |
Fleet pages: Western Antique Aeroplane and Automobile Museum · Rare Aircraft LTD · Flying L Aircraft INC · Artemis Aviation Group LLC
Accident history NTSB records · 1 cases since 1982, 0 fatal
The 1 most recent of 1 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 Waco DSO aircraft are registered in the U.S.?
7 as of October 23, 2026, counting 1 version the FAA records separately.
Which state has the most Waco DSOs?
California, with 2.
Who owns the Waco DSO?
57% 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 Waco DSOs on the register built?
In 1929.
How many Waco DSO accidents has the NTSB recorded?
1 accidents and incidents since 1982, 0 of them fatal. A model flown more shows more; the accident analytics compare models per thousand registered.
What is the Waco DSO 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 biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering. 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 Waco DSO 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 biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering. The design is held under 1 type certificate (ATC 42 Waco, held by The Waco Aircraft Company). No FAA order in the current files names this model. 1 approved modification exist for it, the most by Stilley John D.
Approved replacement parts 2 parts manufacturer approvals
Parts a company other than the maker may make for this design and sell as FAA-approved. The companies holding the most:
Most often: fuel quantity (1), fuel placard (1).
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
Certificates and bulletins
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 DSO links to the rest of the register
- Waco 657 aircraft on the register
- Waco DSO 7 registered
- Built of steel tube, wood and fabric · A biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering.
- Wright HISPANO A&I 1 of these aircraft · 150 hp
- Hispano E 1 of these aircraft · 180 hp
- Continental W670 series 1 of these aircraft · 250 hp
- Continental R670-series 1 of these aircraft · 225 hp
- California 2 of these aircraft
- Oregon 1 of these aircraft
- Ohio 1 of these aircraft
- Montana 1 of these aircraft
- Minnesota 1 of these aircraft
- Western Antique Aeroplane And Automobile Museum 1 of these aircraft
- Rare Aircraft LTD 1 of these aircraft
- Flying L Aircraft INC 1 of these aircraft
- Artemis Aviation Group LLC 1 of these aircraft
- NTSB accidents and incidents involving the DSO 1 cases since 1982 · 0 fatal
- Approved modifications for the DSO 1 supplemental type certificates
The whole map of how records connect · these connections as data: /graph/model/waco/dso.json.
Aircraft newest certificates first · 7
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|
| N204M | Waco DSO |
Co-owned owner California |
Standard | 2026-02-19 | ValidFAA registration status code V: Valid registration. All codes |
| N629N | Waco DSO |
Artemis Aviation Group LLC Kalispell, Montana |
None on file | 2024-06-03 | ValidFAA registration status code V: Valid registration. All codes |
| N605N | Waco DSO |
Co-owned owner California |
Standard | 2020-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N8599 | Waco DSO |
Western Antique Aeroplane and Automobile Museum Hood River, Oregon |
None on file | 2020-04-02 | ValidFAA registration status code V: Valid registration. All codes |
| N762K | Waco DSO |
Rare Aircraft LTD Faribault, Minnesota |
Restricted | 2012-08-08 | ValidFAA registration status code V: Valid registration. All codes |
| N8558 | Waco DSO |
Flying L Aircraft INC Fort Denaud, Florida |
Standard | 2011-11-16 | ValidFAA registration status code V: Valid registration. All codes |
| N8538X | Waco DSO |
Individual owner Ohio |
None on file | 2006-01-20 | ValidFAA registration status code V: Valid registration. All codes |