This is an older model that I plan to finish one day which is a CG replica, thought not 100% accurate to the shooting miniature, of The London from the early episodes of Blake's 7, it was the prison ship that was to take Blake, along with the other prisoners to Cygnus Alpha, during that journey the ship happens upon the abandoned Liberator and Blake, Avon and Jenna manage to jump ship.
The original ship was designed by Ian Scoones and built by Simon Atkinson. It's a very boxy design and is described in the episode as being a converted deep space freighter, we hear in the episode 'Spacefall' that the journey to Cygnus Alpha will take approximately 8 months ship time, yet it seems to be only a matter of days if not less in the actual episodes, from the size of the mess quarters etc... it looks like it would have been a very boring 8 months had it really taken that long.They also talk about things like how the doors might work and lock literally withing ear shot of the guards.
Matt Irvine mentions on the DVD Extra's that the ship was recycled for a Children's TV show called Space Vets, it would seem some changes were made as the box on the front tower seems bigger in the pictures I've seen of this model at exhibitions than it actually does in the episodes of Blake's 7, see bottom left pic above for the model as it is now. I prefer this so it's the version I've gone for in my build. I'll get around to finishing this eventually and have some good reference pics with the help of Niel Bushnell and some of the SF Modelling forums online.