Picture and version info taken from sarna, the masterunitlist and the Solaris Skunk Werks
| STO-4A | STO-4B | |
|---|---|---|
| Overview | ||
| Type | Battlemech | Battlemech |
| Tonnage | 35 | 35 |
| Engine | 280 Light Fusion | 280 Light Fusion |
| Top Speed | 129.6 kph | 129.6 kph |
| Max. Engine | 300 | 300 |
| Armor | Ferro-Fibrous | Ferro-Fibrous |
| Internal Structure | Endo-Steel | Endo-Steel |
| Heat Sinks | 10 Double | 10 Double |
| Jump Jets | No | No |
| ECM Capable | Yes | Yes |
| MASC Capable | No | No |
| Weapons and Equipment | ||
| Head | ||
| Left Arm | Streak SRM-2 | ER Medium Laser |
| Left Torso | ECM | ECM |
| Center Torso | Engine, LRM-5 | Engine, Flamer |
| Right Torso | Streak Ammo, LRM Ammo, CASE | ER Large Laser |
| Right Arm | Streak SRM-2 | ER Medium Laser |
| Left Leg | ||
| Right Leg | ||
| Hardpoints | ||
| Head | ||
| Left Arm | 2(1) Missile (Actuators: Upper) | 1 Energy (Actuators: Upper) |
| Left Torso | ECM | ECM |
| Center Torso | 2(1) Missile | 1 Energy |
| Right Torso | 2(1) Energy | |
| Right Arm | 2(1) Missile (Actuators: Upper) | 1 Energy (Actuators: Upper) |