Fire Moth (Dasher)

This article is about the ultra-fast Clan OmniMech. For Clan medium BattleMech, see Dasher II.
Fire Moth (Dasher)
Fire Moth
Production information
Manufacturer Dominion Facility Kappa-4 and 5
Production Year 2874[1]
Model Prime
Class Light
Cost 4,208,800 C-bills
Technical specifications
Mech type Clan OmniMech
Mass 20 tons
Chassis Dominator Light-Alpha 20 Endo Steel
Armor IceSheet Ferro-Fibrous
Engine Firebox 200 XL
Communications System Untermarkt IV-a
Targeting Tracking System Hakkøn MicroSystems
Heat Sinks 10 Double heat sinks
Speed 162.0 km/h (216.0 km/h with MASC)

Primary Configuration

BV (1.0) 982[2]
BV (2.0) 1,057[3]


The Fire Moth is a light Clan OmniMech intended for scouting and infantry support/transport, and is often deployed by Clan Ghost Bear. With a running speed of 162.0 km/h, accelerating up to 216.0 km/h with the MASC system installed on the 'Mech's chassis, the Fire Moth is easily one of the fastest designs ever created, the reason the Inner Sphere gave it the codename of Dasher.[3][5][6]

The Fire Moth was originally designed by Clan Cloud Cobra scientists as an infantry support OmniMech. The high-placed arms were positioned in order for a pair of infantry "pods" underslung on the arms of the prototype Fire Moth. Designed to ease transporting Elementals into battle, the "pods" were discarded after the first field test, but the arms were never adjusted when the OmniMech debuted in 2874.[3][5][6][1]

Clan Ghost Bear came into possession of the Fire Moth when Clan Cloud Cobra traded the design for five years of trade considerations. Both the Ghost Bears and Clan Hell's Horses make extensive use of the Fire Moth for reconnaissance, dueling and infantry support. Because the Fire Moth is poorly armed and armored, and infantry support is a lack-luster assignment, the Fire Moth is frequently assigned to warriors who are older and lack bloodnames before they reach solahma units. These warriors tend to be extremely aggressive.[3][5][6]

Most of the Fire Moth factories were moved to the Inner Sphere after Operation Revival. Though the mech is rare in Clan Space, it is commonly passed over in favor of the Phantom OmniMech by the remaining Home Clans, as it fulfills the same roles of the Fire Moth but with heavier armor.[7]

Weapons and Equipment[edit]

Typical of many light 'Mechs in its liberal use of lightweight materials, the Fire Moth's superior speed comes from its 200 XL Fusion Engine. An Endo Steel chassis saves additional space. Two tons of Ferro-Fibrous armor act as the only barrier between an enemy and the 'Mech's fragile internals, although the 'Mech relies much more on its speed than its durability for survival. The standard preinstalled ten double heat sinks have little trouble dissipating the 'Mech's heat.[3][5][6]

For such a light design, the Fire Moth has an excellent array of short-range weapons in its default configuration, one of the reasons for its superb performance in raids and guerilla warfare. Each arm mounts an ER Medium Laser as primary weapons. An SRM-6 and SRM-4 rack provide the Fire Moth with additional striking capability and allow it to exploit breaches in enemy armor. However, the heavy weapons load means that the Fire Moth lacks advanced electronics of any sort.[3][5][6]

Alternate Configurations[edit]

  • Alt Config. A 
    Taking advantage of the 'Mech's ridiculous speed, this configuration acts as an artillery spotter and a typical scout, mounting an Active Probe for detecting hidden units and a TAG system for designating artillery fire. The weapons payload was greatly reduced to fit in the electronics, however, and the Fire Moth A mounts only a single Streak SRM-4 for self-defense. BV (1.0) = 550[2], BV (2.0) = 589[3], 639[8]
  • Alt Config. B 
    A close combat configuration, the Fire Moth B replaces the ER Medium Lasers with Medium Pulse Lasers. Dual Machine Guns easily dispose of any infantry the 'Mech may encounter, and an A-Pod secures the 'Mech's legs against any that manage to close in. BV (1.0) = 840[2], BV (2.0) = 922[3], 639[9]
  • Alt Config. C 
    An attempt to use the design for indirect fire support, the Fire Moth C mounts dual LRM-5 missile racks, as well as an Anti-Missile System to prevent any retribution by its target. BV (1.0) = 636[2], BV (2.0) = 679[3], 759[10]
  • Alt Config. D 
    A simple harasser and guerrilla warfare specialist, the Fire Moth D simply utilizes five ER Medium Lasers for excellent short-range firepower, made all the more deadly by an advanced Targeting Computer. This configuration also mounts a Flamer for anti-infantry and incendiary use. BV (1.0) = 1,446[2], BV (2.0) = 1,916[3], 2,307[11]
  • Alt Config. E 
    Another simple, but effective configuration, the Fire Moth E mounts an ATM-6 missile rack, allowing for a surprising amount of flexibility. The ATM system utilizes many different types of ammunition, ranging from high-explosive short-range missiles to long-range missiles packed with fuel. BV (1.0) = 633[2][12], BV (2.0) = 674[3], 822[13]
  • Alt Config. F 
    The F configuration of the Fire Moth is an excellent jungle or urban scout. The 'Mech has an Active Probe to allow it to detect enemy ambushes. For anti-infantry use, the 'Mech has three Anti-Personnel Gauss Rifles and has three ER Medium Lasers for use against armored targets. BV (1.0) = ??, BV (2.0) = 1,232[3], 1,461[14]
  • Alt. Config. G 
    The Fire Moth G was introduced in the Dark Age. It carries four Improved Heavy Medium Lasers that have been tied into a Targeting Computer. It is also equipped with a Supercharger, which combines with the MASC system to allow the Fire Moth G to reach approximately 250km/h in short bursts. To combat the extreme heat, the ten double heat sinks have been supplemented with a Coolant Pod. BV (2.0) = 2,041[15]
  • Alt Config. H 
    Mounting the new Heavy Laser systems, the Fire Moth H sports a huge array of nine Heavy Small Lasers, which provide devastating levels of short-range firepower. An additional double heat sink is also present, to help compensate for the accordingly huge heat burden. BV (1.0) = 485[2], BV (2.0) = 674[3], 779[16]
  • Alt Config. I 
    Carrying an LRM-5 and an ER Large Laser, this configuration turns the Fire Moth into a fast sniper. Additional close range firepower is provided by an Improved Heavy Small Laser. BV (2.0) = 1,260[17]
  • Alt Config. J 
    Apparently an anti-infantry configuration, the 'Mech carries a Plasma Cannon and ammunition in the right arm, with two ER Small Lasers and an ER Small Pulse Laser in the left arm. BV (2.0) = 1,140[17]
  • Alt Config. M
    Four ER Small Lasers are placed in the left arm, and an LRM-15 with a ton of ammo in the right arm. BV (2.0) = 1,200[17]
  • Alt Config. R 
    In this mixed-tech configuration, an Inner Sphere Medium Laser is carried in the right arm, supported by an ER Small Laser. The right torso and left arm mount an Improved Heavy Medium Laser. An ECM Suite is tied into a C3 Slave unit. For close in defense, an M-Pod is carried on the right leg. BV (2.0) = 1,161[17]
  • Alt Config. T 
    A close range striker configuration, the left arm has two Improved Heavy Medium Lasers. The right arm carries an SRM-6 with a ton of ammo, supplemented by an Improved One-Shot Streak SRM-4. An engine Supercharger is also fitted to allow the 'Mech to close quickly. BV (2.0) = 1,305[17]

Custom Variants[edit]

Related Designs[edit]

Dasher II - The Fire Moth would inspire a heavier non-Omnimech known as the Dasher II during the Dark Age Era.


In German products the unit's proper Clan name was altered to Feuervogel, which literally means Fire Bird. The unit's proper Inner Sphere name was perfectly translated to Sprinter.



  1. 1.0 1.1 Era Digest: Golden Century, p. 21, RUD
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Combat Operations, p. 108
  3. 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 3.13 Technical Readout: 3050 Upgrade, pp. 114-115, "Dasher OmniMech Profile"
  4. Record Sheets: 3050 Upgrades Unabridged (Clan & Star League), p. 6
  5. 5.0 5.1 5.2 5.3 5.4 Technical Readout: 3050, pp. 12-13, "Dasher OmniMech Profile"
  6. 6.0 6.1 6.2 6.3 6.4 Technical Readout: 3050 Revised, pp. 10-11, "Dasher OmniMech Profile"
  7. The Wars of Reaving Supplemental, p. 17 Discarded Tools of War - Hellbringer listed as among the 'Mechs phased out due to its association with Inner Sphere based Clans with the exception of Clan Coyote.
  8. Record Sheets: 3050 Upgrades Unabridged (Clan & Star League), p. 7
  9. Record Sheets: 3050 Upgrades Unabridged (Clan & Star League), p. 8
  10. Record Sheets: 3050 Upgrades Unabridged (Clan & Star League), p. 9
  11. Record Sheets: 3050 Upgrades Unabridged (Clan & Star League), p. 10
  12. Record Sheets: Upgrades, p. 33
  13. Record Sheets: 3050 Upgrades Unabridged (Clan & Star League), p. 11
  14. Record Sheets: 3050 Upgrades Unabridged (Clan & Star League), p. 12
  15. Record Sheets: 3145 New Tech, New Upgrades, p. 72
  16. Record Sheets: 3050 Upgrades Unabridged (Clan & Star League), p. 13
  17. 17.0 17.1 17.2 17.3 17.4 17.5 Recognition Guide: ilClan, vol. 8, p. 12
  18. Record Sheets: 3050 Upgrades Unabridged (Clan & Star League), p. 14
  19. Jihad Turning Points: Dieron, p. 18, - Fire Moth Aletha record sheet