
| 
 
 
 | 
| Canon source | Backstage source | Novel source | DITL speculation | 
| # | Series | Season | Source | Comment | 
| 1 | CGI Model | Uprated (225 m) Same as the basic NX class. | ||
| 2 | CGI Model | NX Class - Initial (225 m) As given by foundation imaging, the designers of the CGI model. | ||
| 3 | Star Trek - Starfleet Technical Manual | Ptolemy Class - Transport / Tug (222 m) Stated on page 01:04:16 | 
| Source : | CGI Model | 
| Comment : | Uprated (225 m) Same as the basic NX class. | 
| Source : | CGI Model | 
| Comment : | NX Class - Initial (225 m) As given by foundation imaging, the designers of the CGI model. | 
| Book : | Star Trek - Starfleet Technical Manual | 
| Comment : | Ptolemy Class - Transport / Tug (222 m) Stated on page 01:04:16 | 
| © Graham & Ian Kennedy | Page views : 58,194 | Last updated : 28 Oct 2003 |