The Catacombs The Continuity Guide
Moonbase Guide
by Martin Willey

Forcefield Towers

The Last Enemy

"Now, as you know, these eight anti gravity towers stabilise our gravity here inside Alpha. Now, we're going to use them to create an entirely new force field effect. By linking and cross linking the anti gravity screens in each of the towers, the force field will look something like this." (Victor Bergman in Black Sun)

After Black Sun the gravity towers are often seen, both as full size studio props and in model shots.

Breakaway
The tower first appeared in Nuclear Disposal Area 1, with a different top section, in Breakaway. The area is said to have had an artificial gravity system; presumably this is it.
Black Sun
The towers are first introduced in Black Sun. Bergman shows their positions on this model.
Black Sun
A close up of a tower on Bergman's model
Black Sun
The actual tower
Black Sun
The tower was also built as a full-scale prop.
Black Sun
Radiating the forcefield.
Earthbound
Later in the series the towers changed colour, from red to white.
Black Sun
The ends of the forcefield lines do not match Bergman's model, and do not cover the outlying areas of the base.
Black Sun
They also don't match precisely shot from shot.
Black Sun Another Time, Another Place
There's a white gravity tower in Santa Maria, California, Earth, in Another Time, Another Place.
Alpha Child
A red full sized prop in Alpha Child
The Last Sunset
Full sized prop with background painted towers from The Last Sunset
The Bringers Of Wonder part 1
Bringers Of Wonder part 1: a white gravity tower between the base and a launch pad.
Year 2 titles
The tower models were reused as revolving antenna on the round building foreground right during the title sequence.
The Metamorph
The Metamorph: The gravity tower appears as another revolving antenna.

Copyright Martin Willey