DVEPS

by | Feb 2, 2026

Degraded Visual Environment Pilotage System (DVEPS) is an advanced, multi-sensor situational awareness and pilotage system developed by Sierra Nevada Corporation (SNC) for the U.S. Special Operations Command (USSOCOM) and integrated into select U.S. Army rotary-wing aircraft. It enables safe takeoff, landing, hover, and low-level flight in degraded visual environments (DVE) — conditions of severely reduced visibility caused by rotor-induced brownout (dust/sand clouds from downwash), whiteout (snow), fog, smoke, rain, or other obscurants — where traditional visual references are lost or unreliable.

Key features include:

  • Sensor fusion — Combines real-time data from a forward-looking long-wave infrared (LWIR/IR) camera and LIDAR (laser imaging detection and ranging) with pre-loaded high-resolution terrain databases (e.g., DTED and specialized military elevation data) to generate a fused, synthetic 3D/2D view of the external environment.
  • Display integration — Presents enhanced imagery, hazard detection, obstacle highlighting, proximity alerts, and command guidance symbology directly to the pilot via helmet-mounted displays, multifunction cockpit screens, or other avionics interfaces, reducing workload and preventing spatial disorientation.
  • Advantages — Provides rapid, real-time restoration of visual cues for precise aircraft control and hazard avoidance; focuses on rotorcraft-specific DVEs (e.g., brownout during landing) with a streamlined two-sensor setup; improves survivability in high-threat, low-visibility missions by minimizing exposure time and enabling operations that would otherwise be grounded or aborted.
  • Deployment — Fielded on special operations platforms including the MH-60M Black Hawk and MH-47G Chinook operated by the 160th SOAR (Night Stalkers), as well as select HH-60M MEDEVAC variants; first installations occurred around 2020–2021, with demonstrations and integrations continuing to enhance night/low-level tactical capabilities in denied or austere environments.

DVEPS addresses a critical vulnerability highlighted by historical helicopter accident data (e.g., brownout-related losses in Iraq and Afghanistan) and represents a key enabler for maintaining operational tempo in adverse conditions.