Waco ASO
33 on the U.S. register. Built from 1927 to 1931; half of them date from 1929 or earlier. California has the most (5). 24% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are not named here at this time.
About the ASO from the FAA's model table
- Type
- Fixed-wing, single engine · Piston singles
- Power
- Piston (reciprocating), 1 engine
- Common engines
- Cont Motor W670 Series (10), Wright Wwj Series (4), Wright 760E-2 (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 December 1, 1984; newest August 13, 2026
Where they are owner's state
Who owns them registrant type
By owner type, as a table
| aircraft | share | |
|---|---|---|
| Individual | 21 | 64% |
| LLC | 4 | 12% |
| Co-owned | 4 | 12% |
| Corporation | 3 | 9% |
| Partnership | 1 | 3% |
Versions as the FAA records them · click one to list only those aircraft
| Version | Registered | Built | Share |
|---|---|---|---|
| ASO | 33 | 1927 to 1931 | 100.0% |
When they were built by decade · 16 with no year on file
Airworthiness certificate class
By airworthiness certificate, as a table
| aircraft | share | |
|---|---|---|
| None on file | 13 | 39% |
| Standard | 12 | 36% |
| Restricted | 7 | 21% |
| Experimental | 1 | 3% |
Biggest operators companies, schools and clubs
Largest fleets, as a table
| aircraft | |
|---|---|
| Hawk Aviation LLC | 2 |
| C A S Aerobatic LLC | 2 |
| Radial Engines LTD | 1 |
| Poplar Grove Airmotive INC | 1 |
| Morozowsky John S | 1 |
| Embry Riddle Aeronautical University | 1 |
Fleet pages: Hawk Aviation LLC · Poplar Grove Airmotive INC · Embry Riddle Aeronautical University
Accident history NTSB records · 6 cases since 1982, 1 fatal
The 6 most recent of 6 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 ASO aircraft are registered in the U.S.?
33 as of October 23, 2026, counting 1 version the FAA records separately.
Which state has the most Waco ASOs?
California, with 5.
Who owns the Waco ASO?
24% 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 ASOs on the register built?
Between 1927 and 1931; half of them in 1929 or earlier.
How many Waco ASO accidents has the NTSB recorded?
6 accidents and incidents since 1982, 1 of them fatal. A model flown more shows more; the accident analytics compare models per thousand registered.
What is the Waco ASO 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 ASO 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 41, held by The Waco Aircraft Company). No FAA order in the current files names this model.
Approved replacement parts 3 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: va andaccessories (1), fuel quantity (1), fuel placard (1).
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 ASO links to the rest of the register
- Waco 657 aircraft on the register
- Waco ASO 33 registered
- Built of steel tube, wood and fabric · A biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering.
- Continental W670 series 10 of these aircraft · 250 hp
- Wright WWJ series 4 of these aircraft · 220 hp
- Wright 760E-2 1 of these aircraft · 350 hp
- Wright 760A B D E&ET 1 of these aircraft · 250 hp
- Lycoming R680-4P-B4 1 of these aircraft · 225 hp
- California 5 of these aircraft
- Arizona 5 of these aircraft
- Ohio 4 of these aircraft
- Texas 2 of these aircraft
- Oklahoma 2 of these aircraft
- Hawk Aviation LLC 2 of these aircraft
- C A S Aerobatic LLC 2 of these aircraft
- Radial Engines LTD 1 of these aircraft
- Poplar Grove Airmotive INC 1 of these aircraft
- Morozowsky John S 1 of these aircraft
- NTSB accidents and incidents involving the ASO 6 cases since 1982 · 1 fatal
The whole map of how records connect · these connections as data: /graph/model/waco/aso.json.
Aircraft newest certificates first · 33
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|
| N608N | Waco ASO |
Individual owner Maine |
Standard | 2026-08-13 | ValidFAA registration status code V: Valid registration. All codes |
| N766E | Waco ASO |
Individual owner Virginia |
None on file | 2026-02-20 | ValidFAA registration status code V: Valid registration. All codes |
| N662Y | Waco ASO |
Individual owner Texas |
None on file | 2025-11-09 | ValidFAA registration status code V: Valid registration. All codes |
| N701E | Waco ASO |
Co-owned owner California |
Standard | 2025-09-02 | ValidFAA registration status code V: Valid registration. All codes |
| N1826 | Waco ASO |
Co-owned owner California |
Standard | 2025-08-06 | ValidFAA registration status code V: Valid registration. All codes |
| N709E | Waco ASO |
Individual owner Texas |
None on file | 2025-07-25 | ValidFAA registration status code V: Valid registration. All codes |
| N6940 | Waco ASO |
Withheld at owner's request | Restricted | 2023-09-13 | ValidFAA registration status code V: Valid registration. All codes |
| N768K | Waco ASO |
Individual owner Idaho |
Standard | 2023-01-02 | ValidFAA registration status code V: Valid registration. All codes |
| N9503 | Waco ASO |
C A S Aerobatic LLC Carthage, Missouri |
Restricted | 2021-06-14 | ValidFAA registration status code V: Valid registration. All codes |
| N604N | Waco ASO |
Hawk Aviation LLC Springville, New York |
Standard | 2020-03-25 | ValidFAA registration status code V: Valid registration. All codes |
| N9538 | Waco ASO |
Hawk Aviation LLC Springville, New York |
None on file | 2020-03-25 | ValidFAA registration status code V: Valid registration. All codes |
| N5785 | Waco ASO |
Individual owner California |
Restricted | 2020-03-24 | ValidFAA registration status code V: Valid registration. All codes |
| N10001 | Waco ASO |
Individual owner Florida |
Standard | 2019-02-27 | ValidFAA registration status code V: Valid registration. All codes |
| N5020 | Waco ASO |
Co-owned owner California |
None on file | 2019-02-23 | ValidFAA registration status code V: Valid registration. All codes |
| N9534 | Waco ASO |
Individual owner Arizona |
None on file | 2019-01-29 | ValidFAA registration status code V: Valid registration. All codes |
| N9504 | Waco ASO |
Individual owner California |
Standard | 2019-01-23 | ValidFAA registration status code V: Valid registration. All codes |
| N4W | Waco ASO |
Individual owner Washington |
Standard | 2018-06-06 | ValidFAA registration status code V: Valid registration. All codes |
| N7091 | Waco ASO |
Embry Riddle Aeronautical University Daytona Beach, Florida |
Standard | 2018-04-24 | ValidFAA registration status code V: Valid registration. All codes |
| N9541 | Waco ASO |
C A S Aerobatic LLC Carthage, Missouri |
Experimental | 2017-09-29 | ValidFAA registration status code V: Valid registration. All codes |
| N931H | Waco ASO |
Individual owner Illinois |
Restricted | 2016-01-29 | ValidFAA registration status code V: Valid registration. All codes |
| N4902 | Waco ASO |
Poplar Grove Airmotive INC Poplar Grove, Illinois |
Restricted | 2015-11-10 | ValidFAA registration status code V: Valid registration. All codes |
| N662N | Waco ASO |
Individual owner Ohio |
None on file | 2014-05-16 | ValidFAA registration status code V: Valid registration. All codes |
| N763E | Waco ASO |
Individual owner Ohio |
Standard | 2013-09-16 | ValidFAA registration status code V: Valid registration. All codes |
| N11253 | Waco ASO |
Individual owner Kentucky |
Standard | 2012-12-28 | ValidFAA registration status code V: Valid registration. All codes |
| N775K | Waco ASO |
Individual owner Oklahoma |
None on file | 2012-11-06 | ValidFAA registration status code V: Valid registration. All codes |
| N119Y | Waco ASO |
Co-owned owner Ohio |
Standard | 2011-01-04 | ValidFAA registration status code V: Valid registration. All codes |
| N8540 | Waco ASO |
Individual owner Arizona |
None on file | 2009-02-23 | ValidFAA registration status code V: Valid registration. All codes |
| N699K | Waco ASO |
Individual owner Arizona |
None on file | 2009-01-14 | ValidFAA registration status code V: Valid registration. All codes |
| N8369 | Waco ASO |
Individual owner Arizona |
None on file | 2009-01-05 | ValidFAA registration status code V: Valid registration. All codes |
| N625N | Waco ASO |
Individual owner Arizona |
None on file | 2008-11-19 | ValidFAA registration status code V: Valid registration. All codes |
| N766K | Waco ASO |
Radial Engines LTD Guthrie, Oklahoma |
None on file | 2007-09-05 | ValidFAA registration status code V: Valid registration. All codes |
| N268M | Waco ASO |
Morozowsky John S Zanesville, Ohio |
Restricted | 2002-09-03 | ValidFAA registration status code V: Valid registration. All codes |
| N9500 | Waco ASO |
Individual owner North Carolina |
Restricted | 1984-12-01 | ValidFAA registration status code V: Valid registration. All codes |