Clarification: Cargo Racks help with any "carried" object, like a backpack, including a rider when combined with Riding Saddle.
Clarification: Riding Saddles let you ignore the following Survival checks for mounted combat: Control Mount in Battle (because the drone counts as combat-trained), Fight From a Combat-Trained Mount (the saddle ensures automatic success), Guide With Knees (the AI combined with your rig mean this just works). Cover, Fast Mount/Dismount, Stay Mounted, and Soft Fall all use Piloting, rather than Survival.
Clarification: Jump Jets allow adding to fly speed with any drone with a Flight system.
Riding Drone (accepts mods that Combat Drones can):
Size Large
Speed 40 feet
AC EAC 10, KAC 12
Good Save Fortitude
Poor Saves Reflex, Will
Ability Scores Str 18, Dex 10, Con -, Int 6, Wis 8, Cha 6
Ability Increases Strength, Dexterity
Bonus Skill Unit Athletics
Initial Mods Riding Saddle; Cargo Rack; 1 of Hydrojets, Climbing Claws, Jump Jet, or Speed; 1 of Echolocators, Excavators, or Flight System.
Familiar Drone (accepts mods that Stealth Drones can):
Size Small
Speed 30 feet
AC EAC 10, KAC 12
Good Save Will
Poor Saves Fortitude, Reflex
Ability Scores Str 8, Dex 10, Con —,
Int 14, Wis 14, Cha 6
Ability Increases Intelligence, Wisdom
Bonus Skill Unit Computers or Engineering
Initial Mods Skill Subroutinesx2 (the second is the advanced mod that can choose any skill), Manipulator Arms