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| Canon source | Backstage source | Novel source | DITL speculation | 
| # | Series | Season | Source | Comment | 
| 1 | Speculative | Probe (2.94 m) Scalled to diagram using a 2.74m dish | ||
| 2 | Speculative | Sputnik I (2.84 m) This is the size of the real Sputnik | ||
| 3 | Production Drawings | Work Bee (2.7 m) | 
| Source : | Speculative | 
| Comment : | Probe (2.94 m) Scalled to diagram using a 2.74m dish | 
| Source : | Speculative | 
| Comment : | Sputnik I (2.84 m) This is the size of the real Sputnik | 
| Source : | Production Drawings | 
| Comment : | Work Bee (2.7 m) | 
| © Graham & Ian Kennedy | Page views : 4,832 | Last updated : 28 Oct 2003 |