Production information
Manufacturer Ostmann Industries

Kong Interstellar Corporation

Krupp Armament Works

Odin Manufacturing

Robinson Standard BattleWorks

Production Year 2600[1]
Model OTT-7J
Class Light
Cost 3,416,760 C-bills
Technical specifications
Mech type Inner Sphere BattleMech
Mass 35 tons
Chassis Kell/S
Armor Durallex Light
Engine VOX 280
Communications System Barret 4000
Speed 129.6 km/h
Jump Jets Ostmann Sct-A
BV (1.0) 497[2]
BV (2.0) 596[1][3]


The Ostscout was designed as a pure recon BattleMech by Ostmann Industries. To that end, it was built entirely around gathering data and getting out of trouble, tasks for which it is exceptional. The Ostscout is quick enough to escape most traps, and very few other designs can match it in terms of speed and maneuverability. However its ability to run and leap out of danger came at the expense of offensive capability. In fact were it not for aggressive lobbying on the part of its test pilots the final production model would have been completely weaponless. As it is, the Ostcout would be hard-pressed to win a fight against all but the lightest 'Mechs. A poor combatant, the 'Mech excels at operating deep behind enemy lines, gathering as much information as possible about the terrain and the disposition of enemy forces.[1][4]

Starting in 2600 Ostmann built and sold the Ostscout to fulfill many armies' need for a swift reconnaissance 'Mech, but eventually found that demand was outstripping their production ability. Rather than sacrifice their popular Ostroc line of urban-combat 'Mechs, the company licensed Kong Interstellar to start building the 'Mech in 2700, an arrangement similar to that struck regarding the Ostsol. Kong would continue to build Ostcouts for the next hundred years until the destruction of their factory on Connaught at the outset of the Succession Wars. Deprive of the possibility of replacement, many commanders began to hoard their Ostcouts like valuable treasure, parceling them out only for special missions. Most Ostscout pilots would not even attempt to engage enemy 'Mechs, as the advanced sensor system became extremely rare and nearly impossible to replace. This unwillingness to put the 'Mech in danger meant many survived the Succession Wars in practically mint condition, although many which suffered damage to their advanced sensors were forced to replace them with inferior, albeit more robust, systems.[1][4][5]

Besides the Great Houses, ComStar also utilized the Ostscout, and in the aftermath of the Clan Invasion and ComStar Schism began developing a new Ostscout variant for their Com Guards. This new model would maintain the same maneuverability and intelligence-gathering capabilities of the original while improving its offensive and defensive capabilities. Debuting with success in 3064, within the next three years nearly half of all Com Guard Ostscouts had been upgraded to the new variant; however it was soon discovered that both the Lyran Alliance and Word of Blake were fielding their own updated Ostscouts identical to ComStar's. The intelligence leak would be confirmed and traced back to Dag Kesselring, former Precentor of the 66th Division, who passed on information about the program to both the Lyrans and Blakists.[6]

Used by both sides in the Blakist Jihad, the newborn Republic of the Sphere would maintain production of the 11J model Ostscout after the fall of Terra both for its own relatively limited needs as well as export sales to the Federated Suns and Lyran Commonwealth.[7] Still produced during the Dark Age era, aside from the Krupp plant's combat focused Phoenix models both Kong Interstellar and Robinson Standard BattleWorks reintroduced variants that lean more heavily towards the original look and recon aspects of the venerable 7J model.[8]

Weapons and Equipment[edit]

The Ostscout carries a single Tronel II Medium Laser mounted in its center torso. This weapon, while not extremely powerful, is enough to dissuade most light scout assets from attempting to pursue. The ten heat sinks the 'Mech carries is more than enough to handle the heat output of this single laser - indeed the Ostscout can jump 210 meters and fire laser at the same time without overheating at all. While it is protected by four and a half tons of armor, the real protection for the 'Mech is its speed and maneuverability. A massive sixteen-ton fusion engine more commonly seen in 'Mechs twice its size propels the Ostscout to a cruising speed of 86.4 km/h. Eight jump jets built into the left and right legs give it a maximum jumping distance of 240 meters, rivaling that of the Spider.[1][4]

The true centerpiece of the design is its advanced sensor systems, including the TRSS.2L3 target-tracking system and powerful narrow-band Barret 4000 comm system. The sensor arrays themselves are mounted outside the main chassis due to their delicate nature, with the Ostscout using its arms to aim them. Everything from hydrological to geological data is recorded, so much data in fact that the 'Mech's computer cannot process it fast enough. This forces the Ostscout to move slowly when traveling through an area of interest, waving its arms seemingly at random, which makes it one of the few times the 'Mech is vulnerable to the enemy. However so long as the enemy's first salvo doesn't cripple it, the Ostscout will likely escape from an ambush.[1][4]


  • OTT-7K 
    The 7K Ostscout was introduced in 3050 and replaces the medium laser with a Garret Mole TAG laser designator, sacrificing its limited offensive capability to allow it to designate targets for Arrow IV artillery missiles. Otherwise, the 7K Ostscout is identical to the 7J model, and while utterly defenseless is still swift enough to escape from most danger.[5] BV (1.0) = 372, BV (2.0) = 484[12]
  • OTT-9CS 
    The 9CS model is a complete upgrade of the venerable Ostscout, developed by ComStar and introduced in 3064. The 'Mech has been rebuilt from the ground up with a Krupp 255 Endo Steel internal structure. While still maintaining the same number of jump jets the design uses an 280 Vox extralight engine to free up weight for advanced electronics and weaponry. The arm-mounted sensor arrays were shifted to fixed points around the torso and included new side-scanning, Doppler and triangulation sensors to maintain the same data-gathering capability. Additionally a new high-speed computer, capable of handling terabytes of data in seconds, meant the Ostscout no longer had to slow down when using its sensors. The targeting-tracking system was also replaced with a TRSS Eagle Eye system mated to a Beagle Active Probe, Guardian ECM, and head-mounted TAG, while the comm system was upgraded to the Exeter Longscan 300 w/C3i Computer for better fire mission coordination. For self-defense, the 9CS model carries two Diverse Optics ER Medium Lasers in either arm and an Diverse Optics ER Small Laser in its center torso. Finally six tons of Krupp 155 Ferro-Fibrous armor provides superior protection from weapons fire. BV (1.0) = 734, BV (2.0) = 940[13]
  • OTT-9S 
    The -9S model is also a rebuild of the Ostscout. This model also uses an Endo Steel chassis, as well as Ferro-Fibrous armor. For protection, the 'Mech carries two ER Medium Lasers and two Anti-Personnel Pods to discourage infantry attacks. The electronics carried by this 'Mech include a Beagle Active Probe, Guardian ECM suite, and a TAG laser designator. BV (1.0) = 631, BV (2.0) = 868[14]
  • OTT-11J 
    This variant is also produced by Krupp Armament Works. The top speed of the 'Mech is close to 150 km/h thanks to an GM 315 XL Engine. It uses eight standard jump jets and Ferro-Fibrous Armor, but removes all the advanced electronic equipment except for a TAG. The weapons and electronics are replaced by a pair of Moscovia Light PPCs. BV (2.0) = 908[7][17]

Related BattleMechs[edit]

Design Quirks[edit]

The Ostscout has the following Design Quirks:[19]


  • The original image of the Ostscout was placed on the list of Unseen images in 1996. In 2011[20] it was removed from the list and became once again legal to use. When the decision was made to retcon the Unseen images, it was also decided to refresh the art for other early era Mechs, inluding the Ostscout.



  1. 1.0 1.1 1.2 1.3 1.4 1.5 Technical Readout: 3039, p. 285
  2. Combat Operations, p. 107
  3. Record Sheets: 3039 Unabridged, p. 451
  4. 4.0 4.1 4.2 4.3 Technical Readout: 3025, p. 28
  5. 5.0 5.1 Technical Readout: 3050, p. 82
  6. Technical Readout: Project Phoenix, p. 22
  7. 7.0 7.1 Technical Readout: 3085, p. 235
  8. 8.0 8.1 8.2 Recognition Guide: ilClan, vol. 2, pp4-5 "Ostscout"
  9. Technical Readout: 3075, p. 169
  10. Record Sheets: 3075 Unabridged, p. 157
  11. Record Sheets: 3075 Unabridged - Age of War, p. 17
  12. Record Sheets: Phoenix Upgrades, p. 53
  13. Record Sheets: Phoenix Upgrades, p. 54
  14. Record Sheets: Phoenix Upgrades, p. 55
  15. Record Sheets: Phoenix Upgrades, p. 56
  16. "Boring Recon? No More!"
  17. Record Sheets: 3085 Unabridged — Project Phoenix, p. 44
  18. Experimental Technical Readout: Boondoggles, p.3
  19. BattleMech Manual, p. 93 Design Quirk Table - Ostscout Entry.
  20. Re: The Unseen - a Reseen IIC Explanation, and a List (Updated, December 2011)