BROWNOUT MITIGATION

Enabling Safe Landings
in Degraded Visual Environments




Brownout is a critical operational hazard encountered during helicopter landings in dry, dusty, or sandy environments.

When rotor wash interacts with loose surface material, it generates a dense dust cloud that can rapidly engulf the aircraft, resulting in:

  • Near-zero visibility for pilots
  • Loss of visual reference with the ground 
  • Spatial disorientation during landing and take-off 
  • Increased risk of hard landings, asset damage, and mission failure 

Brownout is widely recognised as one of the leading causes of rotary-wing incidents in austere and desert environments, particularly during tactical operations where visibility and control are already constrained.

Brownout Impact


Brownout is not just a safety issue it is a mission critical limitation

In expeditionary or remote environments, this becomes a logistics challenge which:

Limits where helicopters can safely land

Slows deployment of personnel and equipment

Increases pilot workload and risk exposure

 Restricts night and low visibility operations

 Creates dependency on pre-prepared landing zones

Brownout degrades visibility, limits control, and increases risk at the

most critical phase of flight, impacting mission outcomes.

MILHA Surface Control


MILHA addresses brownout at its source the ground surface.

Using Hydro Road Stabiliser, MILHA enables the rapid creation of stabilised landing zones that:

Bind loose surface particles, preventing dust lift-off under rotor wash

Increase surface cohesion and load bearing capacity

Increases pilot workload and risk exposure

Maintain natural terrain appearance (low visual signature)

Eliminate or significantly reduce dust generation

Converts in-situ soils into a stable, dust-suppressed landing surface, improving visibility, reducing risk, and enabling consistent operations.

MILHA Landing Zone Capability

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Reduced Brownout Risk

  • Degraded visibility during critical landing and take-off phases
  • Reduced pilot control in dust-contaminated environments
  • Increased operational risk to aircraft and crew
  • Compromised landing zone conditions in austere terrain
  • Higher likelihood of mission delay or abort
  • Negative impact on overall mission effectiveness

Rapid Deployment

  • Immediate operational capability
  • Rapid, in-situ terrain stabilisation
  • Low equipment footprint
  • Fast establishment of landing zones
  • Efficient deployment in constrained environments
  • Eliminates dependence on heavy plant and engineering assets

Lower Logistics Burden

  • Significantly reduced logistics burden
  • Removes need for imported materials
  • No reliance on heavy plant or equipment
  • Reduced transport and supply chain complexity
  • Streamlined deployment in remote environments
  • Maximises availability of mission-critical resources

Dual-Use Capability

MILHA delivers adaptable ground stabilisation for both military and civil applications, supporting everything from forward operating bases to humanitarian access and disaster response.


  • Forward Operating Bases (FOBs) 
  • Temporary Landing Zones (TLZs) 
  • Humanitarian and disaster response operations 

Persistent Performance

  • High-strength, load-bearing surface
  • Sustains repeated landing cycles
  • Handles continuous vehicle traffic
  • Performs in variable and harsh conditions
  • Maintains structural integrity under operational load
  • Extended surface lifespan in demanding environments

Built for Operational Environments

MILHA is engineered to perform in challenging remote, and infrastructure-limited environments, where reliability, speed, and simplicity are critical to mission success.



  • Desert and arid regions 
  • Dry rural and unsealed terrain 
  • Military training grounds 
  • Forward deployed operational theatres 
  • They are compatible with both rotary-wing and light fixed-wing operations, supporting flexible mission profiles.

Brownout starts on the ground

and so does the solution!

Brownout is not just a visibility issue it is a ground engineering problem.



MILHA ensures the surface stability required for confident operations in the world’s most demanding environments, converting unstable terrain into reliable landing infrastructure.


Restoring control, reducing risk, and enabling access where it was previously limited or denied.