Waco ZKS-7
5 on the U.S. register. Built from 1937 to 1939; half of them date from 1937 or earlier. Missouri has the most (3). 20% are registered to companies, flight schools, clubs and other organisations; the rest to individuals, who are not named here at this time.
About the ZKS-7 from the FAA's model table
- Type
- Fixed-wing, single engine · Piston singles
- Power
- Piston (reciprocating), 1 engine
- Common engines
- Lycoming R680 (1), Jacobs R-755B2 (1), Jacobs R-755A2 (1)
- Seats
- 5
- Cruise speed
- about 123 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 November 18, 1999; newest October 12, 2022
Where they are owner's state
Who owns them registrant type
By owner type, as a table
| aircraft | share | |
|---|---|---|
| Individual | 3 | 60% |
| Corporation | 1 | 20% |
| Co-owned | 1 | 20% |
Versions as the FAA records them · click one to list only those aircraft
| Version | Registered | Built | Share |
|---|---|---|---|
| ZKS-7 | 5 | 1937 to 1939 | 100.0% |
Airworthiness certificate class
Biggest operators companies, schools and clubs
Largest fleets, as a table
| aircraft | |
|---|---|
| Ozarks Auto Show INC | 1 |
Fleet pages: Ozarks Auto Show INC
Accident history NTSB records · 0 cases since 1982, 0 fatal
No NTSB accident or incident records match this family's versions. Each aircraft's own page also shows its record. How models compare: Accidents by model in Aviation Analytics.
Questions people ask answers refresh every morning
How many Waco ZKS-7 aircraft are registered in the U.S.?
5 as of October 30, 2026, counting 1 version the FAA records separately.
Which state has the most Waco ZKS-7s?
Missouri, with 3.
Who owns the Waco ZKS-7?
20% 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 ZKS-7s on the register built?
Between 1937 and 1939; half of them in 1937 or earlier.
What is the Waco ZKS-7 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 ZKS-7 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 (TC 626, held by The Waco Aircraft Company). No FAA order in the current files names this model. 14 approved modifications exist for it, the most by Electronics International.
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: va andaccessories (1), remote mounted (1).
Approved modifications 14 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 ZKS-7 links to the rest of the register
- Waco 657 aircraft on the register
- Waco ZKS-7 5 registered
- Built of steel tube, wood and fabric · A biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering.
- Lycoming R680 1 of these aircraft · 215 hp
- Jacobs R-755B2 1 of these aircraft · 275 hp
- Jacobs R-755A2 1 of these aircraft · 300 hp
- Jacobs L5 1 of these aircraft · 285 hp
- Continental W670 series 1 of these aircraft · 250 hp
- Ozarks Auto Show INC 1 of these aircraft
- NTSB accidents and incidents involving the ZKS-7 0 cases since 1982 · 0 fatal
- Approved modifications for the ZKS-7 14 supplemental type certificates
The whole map of how records connect · these connections as data: /graph/model/waco/zks-7.json.
Aircraft newest certificates first · 5
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|
| N50662 | Waco ZKS-7 |
Individual owner Virginia |
Multiple | 2022-10-12 | ValidFAA registration status code V: Valid registration. All codes |
| N17741 | Waco ZKS-7 |
Individual owner Missouri |
Experimental | 2015-06-11 | ValidFAA registration status code V: Valid registration. All codes |
| N17701 | Waco ZKS-7 |
Individual owner Wisconsin |
Standard | 2014-01-14 | ValidFAA registration status code V: Valid registration. All codes |
| N17457 | Waco ZKS-7 |
Co-owned owner Missouri |
Experimental | 2012-08-16 | ValidFAA registration status code V: Valid registration. All codes |
| N20902 | Waco ZKS-7 |
Ozarks Auto Show INC Hollister, Missouri |
Standard | 1999-11-18 | ValidFAA registration status code V: Valid registration. All codes |