| Type Designation | S.A.I. KZ VII U-4 Lærke |
| Manufacturer | Skandinavisk Aero Industri A/S |
| CoA | 259 |
| Issued | 1947.10.02 |
| Builder | Skandinavisk Aero Industri A/S |
| Place | Kastrup, Denmark |
| COR | 00357 |
| Issued | 1949.06.22 |
| Cancelled | 1950.03.17 |
| Owner | Zone-Redningskorpset |
| Town | København |
| User |
| COR | 00293 |
| Issued | 1947.10.02 |
| Cancelled | 1949.06.22 |
| Owner | E.C. Rydmann |
| Town | Lyngby |
| User |
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