We don't have a clear horizontal field of fire from the top turrets to back up our perimeter defences.

Best of all, the top turret can detach and convert into a flying vehicle for scouting and recon missions.

Keeping a proper all-round watch in a top turret was a tiring procedure.

Bill Sartor was back in the top turret again for their third visit to Berlin on March 22.

The top turret caved into tangled smoke.

He stopped the tank and stood up in the top turret and spoke.

The top turret, mounting a 76.2mm gun, was able to turn a full 360 degrees.

Both the ball turret and top turret can be manually operated.

Two props were feathered and the top turret was missing.

Although the tail and top turrets of his bomber became inoperative, he successfully outmaneuvered the pursuing ME-110 through eight different attacks.