Production information
Manufacturer Jalastar Aerospace

Stormvanger Assemblies, Light Division[1]

Production Year 2751[2][3]
Model JVN-10N[1]
Class Light
Technical specifications
'Mech type Inner Sphere BattleMech
Mass 30 tons
Chassis Duralyte 246[1]
Armor StarGuard I[1]
Engine GM 180[1]
Communications System Garret T10B [1]
Targeting Tracking System Dynatec 128C[1]
Heat Sinks 10 single[1]
Speed 97[1] km/h
Jump Jets Rawlings 95[1]

2x SRM-6[1]

BV (1.0) 487
BV (2.0) 594[1][3]


The Javelin was first built in 2751 by Stormvanger Assemblies, Unlimited as a recon 'Mech meant to be exported to the member states of the Star League. A compromise between speed and firepower, the Javelin was fast enough to avoid engagements with heavier 'Mechs while still having sufficient firepower to dissuade pursuit. In particular, the 'Mech's maneuverability meant that while its main function was to perform reconnaissance, the Javelin became adept at conducting ambushes, gaining a reputation for appearing out of nowhere and giving rise to the phrase "sneaky as a Javelin."[2][3][4][5]

The Javelin had yet to be integrated into most SLDF regiments when the Amaris Civil War struck and Stormvanger Assemblies' factory on Caph was destroyed in 2774, ending all production of the Javelin design. Despite this, the Federated Suns - who had purchased the largest total number of Javelins from Stormvanger Assemblies - succeeded in their plans to incorporate the design into practically all of their 'Mech regiments at the start of the First Succession War, where its appearance took many enemy combatants off-guard. Though employed to varying degrees by the other Successor States, the Javelin quickly became synonymous with the Federated Suns, often anchoring scout lances, or, in certain units, teaming up with other Javelins to create mobile fire support lances. Following the creation of the Federated Commonwealth, the design was upgraded with newly-recovered lostech during the latter part of the 3040s, and at the behest of AFFC High Command, Jalastar Aerospace began production of new Javelins in 3055. Since then, the sturdy and reliable scout 'Mech has continued to serve with distinction on the battlefield; though the original's level of armor protection has been deemed as insufficient by some, new variants continue to be introduced as technology progresses, ensuring its continued service into the thirty-second century.[2][3][4][5][6]

Weapons and Equipment[edit]

The Javelin carries a limited weapons array consisting of only two Arrowlite SRM-6 launchers, one each in the left and right torso with one ton of ammunition per launcher. This makes the Javelin highly reliant on good supply lines and can hamper the 'Mech if it is forced into guerrilla combat, though with one ton of ammo per launcher it has sufficient endurance for most battles. As a close support 'Mech, it is highly adept at swooping in and helping deliver the final blow, especially as its scattering missiles can exploit and cripple exposed systems. However, its light armor makes the Javelin ill-suited for hand-to-hand brawling. Notably, the Arrowlites and their ammunition stores are placed so far forward in the 'Mech's torso that the Javelin has a front-heavy center of gravity, causing MechWarriors unfamiliar with the design's forward-lean while running to be prone to falling over while moving at high speeds in difficult terrain.[2][3]

With a reliable GM 180 engine the Javelin benefits from a good cruising speed of 64 km/h while six Rawlings 95 jump jets - two in each leg and the remainder in the rear center torso - provided for good maneuverability and a total jumping distance of 180 meters. Four tons of armor allow it to survive most surprise encounters and retreat to safety, with a half-ton protecting the chest, side torsos and legs each. 10 single heat sinks mounted in the engine are sufficient cooling for the 'Mech.[2][3]


  • JVN-10A 
    Introduced in 2752, the 10A is a long-range harasser. Both SRM-6 racks are replaced by one LRM-15 in the right torso with one ton of reloads. BV (2.0) = 653[7][8]
  • JVN-10F 
    The only Succession Wars variant, also known as the Fire Javelin, the 10F was introduced in 2819 and is the complete opposite of the 10N model, as it removes both of the SRM-6 launchers in favor of four Diverse Optics Type 20 medium lasers and two tons of armor. While less reliant on expendable ammunition stores, this variant is also more susceptible to overheating if the lasers are used simultaneously with the jump jets.[1][2][3] BV (1.0) = 702, BV (2.0) = 835[9]
  • JVN-10P 
    The 10P model is an upgrade of the 10N model introduced by the Federated Commonwealth amid much secrecy in 3049. The 10P retains the armor and speed profile of the 10N, but removes one of the SRM-6 launchers and replaces it with two Hovertec Streak SRM-2 launchers. While sacrificing slightly in terms of firepower, this variant is far more ammo-efficient than the original.[4][5] BV (1.0) = 514, BV (2.0) = 590[10]
  • JVN-11A 
    The second version of the Javelin to carry the moniker of Fire Javelin, this upgrade of the 10F was introduced following the Clan Invasion in 3053 and mounts seven medium lasers, using double heat sinks to counter the massive amount of heat that can build up from using so many energy weapons. The conventional armor was also swapped out for ferro-fibrous and an additional ton was added to increase the overall protection for the Javelin. This design was a field refit often seen after other units had cast off their old parts.[11] BV (2.0) = 1,073[9][12]
  • JVN-11F 
    Also produced during the Jihad, this variant was introduced in 3070 and removes the weapons and equipment of the 11D to carry a snub-nose PPC supplemented by two trios of machine guns, with each trio linked through a Machine Gun Array. This low-heat model is devastating to unarmored infantry, though it is less prevalent than the 11D within the AFFS.[5] BV (2.0) = 827[9]
  • JVN-12N 
    The 12N represents a return to the classic missile-armed striker profile by Jalastar Aerospace, but with a more modernized loadout. The 12N carries two Clantech SRM 6 launchers and a head mounted TAG. For internals the 12N carries a 240 XL Engine, 8 jump jets enabling a 250m jump distance and 10 double heat sinks. The SRM 6 launchers are supplied by two tons of ammunition stored in CASE II bins.[6] BV(2.0) = 795[16]

Custom Variants[edit]

Apocryphal Variants[edit]

Apocryphal Content Starts

The information after this notice comes from apocryphal sources; the canonicity of such information is uncertain.
Please view the reference page for information regarding their canonicity.

These variants were introduced in various apocryphal sources, and thus far have not appeared in any canonical media.

From MechWarrior Online:

Apocryphal Content Ends

Design Quirks[edit]

The Javelin has the following Design Quirk:[20]

The JVN-11D Javelin Farrell has the following additional Design Quirk:[21]

Notable Pilots[edit]

See Category:Notable Javelin Pilots


  • In German products, the unit's proper name translated to Speerschleuder, which translates to Javelin Thrower. The model code was accordingly changed to SPR-10R.
  • In French products, the unit's proper name was translated as Javelot.



  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 Technical Readout: Succession Wars, pp. 26–27: "JVN-10N Javelin"
  2. 2.0 2.1 2.2 2.3 2.4 2.5 Technical Readout: 3025, p. 16-17
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Technical Readout: 3039 p. 104-105
  4. 4.0 4.1 4.2 Technical Readout: 3050, p. 66
  5. 5.0 5.1 5.2 5.3 5.4 Technical Readout: 3050 Upgrade, p. 18
  6. 6.0 6.1 Recognition Guide: ilClan, vol. 31 p. 12 "Javelin"
  7. Record Sheets: Succession Wars, p. 38
  8. MUL online entry for the JVN-10A variant
  9. 9.0 9.1 9.2 9.3 9.4 Master Unit List: Battle Values, p. 113
  10. Technical Readout: 3050 Upgrade, p. 19
  11. Record Sheets: 3050 Upgrade (Inner Sphere), p. 24 & Technical Readout: 3050 Upgrade, p. 18
  12. In Record Sheets: 3050 Upgrade, this variant was identified as the JVN-10N, the same designation as the base design. This error was corrected in the Master Unit List publication
  13. Record Sheets: Upgrades, p. 47
  14. Technical Readout: 3145, p. 210
  15. Record Sheets: 3145 New Tech, New Upgrades, p. 84
  16. Recognition Guide: ilClan, vol. 31 p.31: "Javelin JVN-12N"
  17. BattleTech Dossiers: The Bounty Hunter, p. 10
  18. BattleTech Dossiers: The Bounty Hunter, p. 21
  19. MechWarrior Online "Javelin Sale Page"
  20. BattleTech Manual, p. 92, "BattleMech Quirk Table - Javelin"
  21. BattleTech Dossiers: The Bounty Hunter, pp. 10, 21