Production information
Manufacturer Defiance Industries
Production Year 3053[1]
Model NGS-4S
Class Medium
Cost 9,420,000 C-bills
Technical specifications
Mech type Inner Sphere BattleMech
Mass 50 tons
Chassis Dorwinion
Armor Kallon Royalstar
Engine Vlar 300 XL
Communications System TharHes Calliope Hm10
Targeting Tracking System TharHes Ares-8a
Heat Sinks 12 Double Heat Sinks
Speed 97.2 km/h
Jump Jets HildCo Model 13
BV (1.0) 1,029[2]
BV (2.0) 1,159[3]


The Nightsky was built as a followup to the Hatchetman and Axman 'Mechs. The Nightsky is built around a massive Vlar 300 XL Engine that propels the Nightsky up to speeds of 97.2 km/h. The Nightsky was intended for close range combat. With a superb ground speed and added maneuverability provided by six HildCo Model 13 jump jets that allow the Nightsky to jump up to one hundred and eighty meters, the Nightsky is a capable heavy recon 'Mech. It is also protected with nine and a half tons of armor, providing the Nightsky with good armor protection for its size.[4]

Weapons and Equipment[edit]

The Nightsky is built with a powerful close range arsenal. The centerpiece of this is a massive four-ton Hatchet that the Nightsky has built into its right arm which allows the 'Mech to cut through another 'Mech's armor. The Nightsky is also armed with a Sutel Precision Line Large Pulse Laser for medium to long range firepower and two Sutel Precision Line Medium Pulse Lasers and a Sutel Precision Line Small Pulse Laser for close range support.[4]


  • NGS-4T 
    The 4T is a variant of the Nightsky that looks to make the 'Mech more powerful in both long and close range combat. This is done by removing the Large Pulse Laser. This has been replaced with an ER Large Laser and an Anti-Missile System for added defense against enemy missiles. The 'Mech also adds an additional Small Laser for added close range firepower. BV (1.0) = 1,107[2], BV (2.0) = 1,287[5]
  • NGS-5S 
    A simple upgrade of the Nightsky, the 5S looks to make the 'Mech more heat efficient. This is achieved by removing the jump jets and replacing them with three additional double heat sinks. BV (1.0) = 904[2][6], BV (2.0) = 1,045[7]
  • NGS-5T 
    The 5T is a modification of the 4S that replaces the Large Pulse Laser with an ER PPC. The 'Mech is otherwise identical to the 4S model. This modification of the 'Mech makes the Nightsky capable of targeting an enemy 'Mech at extreme ranges and wearing them down until the 'Mech can bring its hatchet to bear on its target. BV (1.0) = 1,175[2][8], BV (2.0) = 1,356[9]
  • NGS-6S 
    This modification of the Nightsky intended to make the 'Mech more durable and gave it a longer life on the battlefield. The 'Mech replaces the 300 XL Engine with a 300 Light Fusion Engine. The 'Mech also removes all of its ranged weaponry and replaces it with seven ER Medium Lasers. When combined with the Hatchet, the 'Mech is a monster, both against Battle Armor and in an urban environment. BV (1.0) = 1252, BV (2.0) = 1,474[10]

Design Quirks[edit]

The Nightsky has the following Design Quirk:[13]


In German products the unit's proper name was altered to Nachtschatten, which means Nightshade. The model code was accordingly changed to NTS-4S.



  1. MUL online date for the Nightsky
  2. 2.0 2.1 2.2 2.3 Combat Operations, p. 132
  3. Record Sheets: 3055 Upgrades Unabridged, p. 57
  4. 4.0 4.1 Technical Readout: 3055 Upgrade, p. 40, "Nightsky Profile"
  5. Record Sheets: 3055 Upgrades Unabridged, p. 58
  6. Record Sheets: 3060, p. 145
  7. Record Sheets: 3055 Upgrades Unabridged, p. 59
  8. Record Sheets: 3060, p. 146
  9. Record Sheets: 3055 Upgrades Unabridged, p. 60
  10. Record Sheets: 3055 Upgrades Unabridged, p. 61
  11. Technical Readout: 3085, p. 190
  12. Record Sheets: 3085 Unabridged — Old is the New New, p. 80
  13. BattleMech Manual, p. 93 Design Quirk Table - Nightsky Entry.