With expertise in high pressure gas management and fast actuation for harsh environments, Cobham provides emergency landing gear blowdown systems for aircraft and unmanned aerial vehicles.

When primary hydraulic landing gear systems fail, Cobham's pneumatic emergency landing gear blow down systems are used to unlock, lower and relock the main landing gear structure in the down position providing a backup method of landing gear actuation.  In the event of a failure to the landing gear hydraulic system, nitrogen gas contained within the storage vessel is distributed to the landing gear through the connected manifold assembly. Cobham's emergency landing gear blow down systems set the industry standard in performance, weight and reliability.


Since 1988, Cobham has supplied the Landing Gear Blow down System for various military aircraft platforms including unmanned air vehicles, tilt rotor aircraft, trainer/light attack and rotary aircraft platforms. 



Innovative, Lightweight, Reliable

Cobham has applied its expertise in high pressure gas management to multiple applications including aerospace oxygen systems, weapon control actuation, and personal inflation systems.  With this expertise, Cobham can choose an off the shelf design or custom design an optimised system for a specific application.  Cobham's lightweight, reliable systems have heritage on many aircraft flying today. 


Key customer benefits:

  • Pedigree in high pressure gas management for a variety of aerospace applications
  • Offer off the shelf designs to an entire integrated system
  • Reduced weight and size
  • Zero leakage
  • Safe and reliable performance


Components include:

  • Stainless steel or composite filament wound high pressure cylinders
  • Valves
  • Regulators



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