Waco CSO
5 on the U.S. register. Built from 1929 to 1930; half of them date from 1929 or earlier. Wisconsin has the most (1). 20% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are never named here.
About the CSO from the FAA's model table
- Type
- Fixed-wing, single engine · Piston singles
- Power
- Piston (reciprocating), 1 engine
- Common engines
- Wright 760E-2 (1), Wright 760A B D E&Et (1), Cont Motor W670 Series (1)
- Seats
- 3
- Cruise speed
- about 79 mph
- Maker on the register
- Waco
- Registered
- earliest certificate November 17, 2016; newest August 13, 2023
Where they are owner's state
Wisconsin1New York1Colorado1Arizona1
Who owns them registrant type
Individual2 (40%)Not stated1 (20%)Corporation1 (20%)Co-owned1 (20%)
Versions as the FAA records them · click one to list only those aircraft
| Version | Registered | Built | Share |
|---|---|---|---|
| CSO | 5 | 1929 to 1930 | 100.0% |
When they were built by decade · 2 with no year on file
Registrations by year certificates issued since 2010, including changes of owner · 2026 is the year so far
Registration status
Valid4 (80%)Pending cancellation1 (20%)
Airworthiness certificate class
Standard4 (80%)None on file1 (20%)
Biggest operators companies, schools and clubs
1941 Historical Aircraft Group DBA1
Accident history NTSB
Each aircraft's own page already shows its NTSB accident and incident record. The model-wide record (accidents per year, fatal and non-fatal, against the number registered) is being added; it will appear here.
Questions people ask answers refresh every morning
How many Waco CSO aircraft are registered in the U.S.?
5 as of October 2, 2026, counting 1 version the FAA records separately.
Which state has the most Waco CSOs?
Wisconsin, with 1.
Who owns the Waco CSO?
20% 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 · 5
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|
| N618N | Waco CSO |
1941 Historical Aircraft Group DBA Geneseo, New York |
Standard | 2023-08-13 | Valid |
| N265M | Waco CSO |
Co-owned owner Colorado |
None on file | 2019-10-23 | Valid |
| N656N | Waco CSO |
Individual owner Wisconsin |
Standard | 2018-03-23 | Valid |
| N517M | Waco CSO |
Individual owner Arizona |
Standard | 2016-11-17 | Valid |
| N671N | Waco CSO |
No owner on file | Standard | Pending cancellation |