| Modelo | Velocidad de elevación | Velocidad de bajada |
|---|---|---|
| RSC8EX | 98 pies/min | 79 pies/min |
| RSC6EX | 118 pies/min | 89 pies/min |
| RR4EX | 55 pies/min | 75 pies/min |
| Gregory RSC7EX | 118 pies/min | 79 pies/min |
| Gregory RSC5EX | 118 pies/min | 89 pies/min |
| Gregory RSC4EX | 118 pies/min | 88.8 pies/min |
| Gregory RSC3EX | 118 pies/min | 88.8 pies/min |
| Gregory RS6EX | 55 pies/min | 75 pies/min |
| Gregory RS5EX | 55 pies/min | 75 pies/min |
| Gregory RS4EX | 55 pies/min | 75 pies/min |
| Gregory RS3EX | 55 pies/min | 75 pies/min |
| Gregory RR6EX | 50 pies/min | 75 pies/min |
| Gregory RR5EX | 50 pies/min | 75 pies/min |
| Gregory RR3EX | 55 pies/min | 75 pies/min |
| Gregory RC4EX | 65 pies/min | 60 pies/min |
| Gregory RC3EX | 65 pies/min | 60 pies/min |