| Manufactor Serial Number | Type | Serial / Registration Number | Owner | Fate |
| 322 | Avro 621 Tutor | K-4 | Civil Owner Test Registration | Reregistered |
| 5110 | Avro 504R Gosport | K-6 | Civil Owner Test Registration | Reregistered |
| 476 | Avro 626 Prefect | K-7 | Civil Owner Test Registration | Reregistered |
| 5104 | Avro 504N | K-8 | Civil Owner Test Registration | Reregistered |
| 496 | Avro 626 Prefect | K-10 | Civil Owner Test Registration | Reregistered |
| 661 | Avro 638 Club Cadet | K-11 | Civil Owner | Reregistered |
| 639 | Avro 639 Cabin Cadet | K-14 | Civil Owner | Reregistered |
| 62 | Airspeed AS-57 Ambassador | G-37-3 | Civil Owner Test Registration | |
| 5214 | Airspeed AS-57 Ambassador | G-37-4 | Civil Owner Test Registration | Reregistered |