Homebuilt Kolb-Mark III X-Tra registrations
1 Homebuilt Kolb-Mark III X-Tra aircraft on the FAA register (FAA model KOLB-MARK III X-TRA), newest first.
| N-number | Year | Aircraft |
|---|---|---|
| N478J | — | Homebuilt Kolb-Mark III X-Tra |
Source: FAA Aircraft Registry, October 2026. Each N-number links to its aircraft page with registration record, history and accident data.
