It's my thought that they are probably the generators for the traction beam.

But in what way could it be used on this ship to break a traction beam which held so powerful a vessel in bonds?

The flitter plunged crazily, caught in the side sweep of a traction beam.

He hit the lever for traction towing beams.

It lifts its cargo on traction beams and carries it.

The aft cable ends of the traction beams are totally fused.

They turned on the traction beams and engines again and floated the whole ship and platform a few feet off the hangar floor.

An entire fleet of battleships was pulling at it now with traction beams, but there was practically no effect.

The fingers of Death still reached for them in the form of traction beams.

Korzenowski ordered a traction beam to lower the nearest projector.