Jet Pack

The Jet Pack torso is produced by both Mil-Agro and Neuropa. It allows flight over any distance, and free travel between the surface and orbital layers. While flying, Combots behave similarly to a Hover Jet with a slower speed and turn rate, but can still attack with ranged weapons. Also like aircraft, a Combot in the air cannot be the target of ground attacks, such as enemy Combot melee weapons, Tanks, or Laser Turrets. They are, however, susceptible to anti-air such as the Missile Car and AA Turret. When ordered to attack with melee, the Combot will fly right next to the target and land before attacking, allowing them to execute hit-and-run attacks and run down fleeing stragglers.

The Jet Pack, despite granting the unique ability for a Combot to fly, has a severe weakness - not only is the health of the part particularly low, but the defense values of a Combot are lowered to 0% in both categories while in flight, making the Combot take full damage from every weapon that can target them. Another fault is that Combot crews cannot eject if the Combot is in the air so if the Combot is shot down, the crew is instantly killed. It's comparable to the Jump Jet legs used by Rimtech.

Official Description
"The Jet Pack Torso consists of a pair of wings and high output jet engines, both of which are situated on the back of the body frame. This configuration lets the Combot fly to distant destinations. Jet Packed Torso equipped Combots can fly between asteroids in the Orbit Layer, and fly unassisted between the Surface and the Orbital Layer."