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| Canon source | Backstage source | Novel source | DITL speculation | 
| # | Series | Season | Source | Comment | 
| 1 | Speculative | (280 m) Estimated compared to Enterprise in the episode 'Favourite Son'. | ||
| 2 | Speculative | Malachowski Class (277 m) | ||
| 3 | Speculative | Whorfin Class (270 m) Approximation | 
| Source : | Speculative | 
| Comment : | (280 m) Estimated compared to Enterprise in the episode 'Favourite Son'. | 
| Source : | Speculative | 
| Comment : | Malachowski Class (277 m) | 
| Source : | Speculative | 
| Comment : | Whorfin Class (270 m) Approximation | 
| © Graham & Ian Kennedy | Page views : 19,400 | Last updated : 28 Oct 2003 |