The Ball was created as a protecter of Federation ships as gms took offence. They were a adaption of 1200 civilian-model SP-W03 space construction pods with armor plating and a 180 mm recoilless cannon.

Model number: RB-79
Name: Ball
Unit type: combat support mobile pod
Manufacturer: Earth Federal Forces
Operator: Earth Federal Forces
First deployment: UC 0079
Accomodation: pilot only, in standard cockpit in body
Dimensions: overall height 12.8 meters
Weight: empty 17.2 metric tons; max gross 25.0 metric tons
Powerplant: Minovsky type ultracompact fusion reactor, output rated at 400 kW
Propulsion: rocket thrusters: 24000 kg total
Performance: maximum thruster acceleration 0.96 G Equipment and design features: sensors, range 4000 meters
Fixed armaments: 1 x 180 mm recoilless cannon, mounted on body