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UNSC prowler

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This article is about the UNSC spacecraft classification. If you were looking for the Jiralhanae vehicle, see Jiralhanae prowler.

UNSC Prowler Red Horse
UNSC prowler
Production information



Product line



Stealth corvette



Technical information


162 metres (530 ft)[1] to 281 metres (920 ft)[2]

Engine unit(s)


Slipspace drive

Shaw-Fujikawa Translight Engine


Resistant to several pulse laser bursts[3]

Sensor systems

X-ELF Radar System

Navigation system

Artificial intelligence or NAV computer


  • Ablative baffles
  • Counter-electronic systems
  • Matte black ablative stealth coating
  • Texture buffers
  • Stealth Ablative Coating




90 crewmen[6]



Stealth infiltration and exfiltration, electronic intelligence, mine laying



UNSC, ONI prowler Corps

The UNSC prowler is a stealth corvette classification within the UNSC.[7] They are used exclusively by the Office of Naval Intelligence and are crewed by select ONI personnel.[8]


In a similar role to its namesake, it is used to gather electronic intelligence, and its primary role is to stay hidden while safely gathering such intelligence, not to charge into battle, as that would invariably be an irreversibly fatal tactic, due to its light weapons and armor. Because of its tactical value and potential to change the outcome of any given combat situation, every UNSC battlegroup has at least one Prowler assigned to its ranks.[9]

The Prowler's only combat role, beside active combat monitoring and recording, is discreetly laying minefields of stealthed nuclear HORNET Mines in orbital regions. Enemy ships that unknowingly enter these minefields can be destroyed by a single prowler, allowing the remainder of the UNSC forces to move in and finish off the survivors with MAC strikes and Archer Missiles. This stratagem allowed Battlegroup Stalingrad to wage a short but devastating battle against the Covenant at Onyx, destroying significantly more ships than their own number, an extremely rare outcome among UNSC-Covenant engagements.

Stealth systemsEdit


  • SPARTAN-II Gray Team was able to pilot a Prowler, meaning a Prowler could be piloted by a crew of only three people.
  • The UNSC Wink of an Eye possessed Active camouflage systems, which were not common among UNSC or Covenant starships. The technology was most likely experimental, since the camouflage could not keep up with the constantly changing atmosphere of the gas giant Viperidae. Such a system was also used by the UNSC Dusk, during the Battle of Onyx, but bizarrely not described as being used during the Covenant Schism at Installation 05, despite there being five times as many, or more Covenant ships than at Onyx.
  • Unlike other UNSC ships which are rectangular, long, and narrow in design, the UNSC Prowler is rather wide and has curved, wing-like extensions on its hull.




  1. Halo Encyclopedia, page 248
  2. Halo 4: The Essential Visual Guide, page 190
  3. Halo: Ghosts of Onyx, page ??
  4. Halo: Evolutions, The Mona Lisa, page ??
  5. Halo: Ghosts of Onyx, page 50
  6. Halo: Ghosts of Onyx, page 186
  7. Halo: The Fall of Reach, page 281
  8. Halo: The Fall of Reach, page 162
  9. Halo: Ghosts of Onyx, page 329

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