Blake’s 7: Liberator Scale Question

Its all a matter of Scale

Recently I have returned to an old design favourite, the Liberator DSV or Deep Space Vessel design from the classic BBC TV series Blake’s 7 from 1978. There is, like most TV shows that features space-ships designs, there is a question of scale.





The question was asked on a Facebook group for Blakes’7, so I decided to see if I could work it out for the fun of it, and see what the results could be, again this is all conjecture and its open to debate if its right or not.


The early guess work and fan imaginations was that the Liberator would be between 300 meters or 1000 meters long,  I liked it at the lower end more around 300 meters.


Model by Gerard Duffy

Too help me in this I am also using my own Lightwave3D model of the USS ENTERPRISE NCC – 1701 which I built to scale, the  USS Enterprise is around 288 meters or 947 ft long  (personally I think it should be larger by another 40 meters or so but I will stay on track with this)..
London inner hatch 3 meters overall length 55

This model of the London is by Cyberia23

Also I am using the Civil Administration ship London seen in the first 3 episodes as a reference, it has the one feature too help us, as you see it has an extendible tube to transfer crew from one ship to another, and crewmen along side, if we say the crewmen are 6ft, its a start. I used a poser character and scale it to 6ft or 1.8288 meters.
Models by Gerard Duffy

Models by Gerard Duffy

So I set the scale of the Liberator too 300 meters first and was happy with the result, (ignore the windows scale on the Liberator, they were added by me in an attempt to update the look of the design) but as someone pointed out, the Prison-Ship London should be taken into account.

How big is the London, well after a time a friend had converted Cyberia23 Model of the Civil Administration ship London by Cyberia23 to Lightwave3d and seeing what I was doing, sent me the file too help, saving me the trouble of converting it myself.


Model of the Civil Administration ship London by BBC

Untitled 9
Model of the Civil Administration ship London by Cyberia23
Using the 6ft crewman and a little working out I arrived to the scale of 55 meters long and possibly 4 levels tall, some people did not like the result, but its what I got.

Sub-commander Raiker’s deadly end

After a little time I found the scale that worked was 780 meters long or 2559.06 ft, which I think is maximum for the Liberator it could be shorter… perhaps 700 meters but I cannot see it reduces more.
Liberator 780 m  London 55m Enterprise 288m BOW
Front View
Liberator 780 m  London 55m Enterprise 288m AFT
Aft View
Liberator 780 m  London 55m Enterprise 288m side
Side View
Liberator 780 m  London 55m Enterprise 288m Side close
 Side Close up
Liberator 780 m  London 55m Enterprise 288m lowpro
Liberator 780 m  London 55m Enterprise 288m lowpro1
Liberator 780 m  London 55m Enterprise 288m pro1
Liberator 780 m  London 55m Enterprise 288m pro2
Liberator 780 m  London 55m Enterprise 288m pro3 art
Liberator 780 m  London 55m Enterprise 288m pro4 art
Liberator 780 m  London 55m Enterprise 288m pro5

This is the results I got, it is much larger than I expected. but its is conjecture and could be off by quite a lot.

Currently I am rebuilding the Liberator, a welcome break after the Nautilus, London Mesh build credit to Cyberia23

20 thoughts on “Blake’s 7: Liberator Scale Question

  1. I’d go a bit bigger as the transfer tube is wider than the people in it, but basically yep, 700 to 1000m. Lots of guesstimate in any workout.


    • Did a quick measurement on my 32″ TV of the London and the Liberator screen shot. The London is 2″ wide and the Liberator is from the tip of the engine sphere to where the centre body prong is 16″ wide. So the Liberator from this screen grab is 8 times longer then the London and if the London is 55 metres long then the Liberator is 440 metres long. The screen measurements were done in full screen mode and do not include the metal prongs at the front of the model.

      My measurements are approx. only and assuming both models on screen are the same scale.


  2. Interesting article. I build a lot of scale models in LEGO, I do this professionally, but before I did, I actually built a LEGO Liberator
    Having looked at the analysis here I had a go myself. I believe this is the original London model?
    If not, the many others that I have found all pretty much tally. If I scale from the airlock on this one, allowing a little head-room based on the images I can find of the crew next to it, I get a length of more like 45m for the London. Using this shot to scale it: excluding the needle/probe on the front of the liberator gives a scale of about 10:1 so about 450m long for the Liberator. Of course, we don’t know how far into the foreground the London is. So take a look at this: (37 min and 12 sec in) and the London is cross in front. By scaling from this shot to the diameter of one of the three ‘pods’ I also get a result of about 450m. Whichever way I look at it I can’t get it up to 750m without the London being a lot bigger. Of course, when you start looking at the internal shots of the London you reach the conclusion it must be a TARDIS!


    • Thanks for the comment Ed, I liked your lego build very cool and great seeing other people working with this design.
      The scale you favour is one I used and I think the overall scall accepted is around 54 or 55 meters.. I created a 3d possible plan of the design and found 54 or 55m works well for the design.

      There are so many inconsistencies with the Liberator intended presentation.

      Martin Bower says in an article talking about the miniature ‘With it’s lack of any kind of detailing it gave the appearance of being a craft about 10ft long instead of the thousand metre long ship it was supposed to represent’ 1000m works out at 3280ft

      I tried 1000m and looks impressive but I still went with 780m

      And in the audio books the Liberator is 2000m


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