Astronomy & Space Sciences, Medical Sciences


Helicopter Oxygen System


Astronomy & Space Sciences, Medical Sciences

Focus Area:

Oxygen system for pilots

Company Transferred:

M/s Vijay Sabre Pvt. Ltd,. Maharashtra

Developing Agency:

Defence Bioengineering and Electromedical Laboratory (DEBEL), Bangalore

Technology Readiness Index:


Website Link :

Brief Description

Description :

Helicopter Oxygen System (HOS) Mk-I engaged in flying Cheetah, Chetak, Cheetal helicopters in high altitude regions of Leh, Siachen and Northeast. The HOS Mk-I consist of two High Pressure Oxygen Source (HPOS), Dilution Demand Oxygen Regulator (DDOR) and connecting hoses with flow indicator and QDCs (Quick Disconnect Couplings). The HOS Mk-I is an independent system which can be fitted in above helicopters without any structural changes. Helicopter oxygen system Mk-II to meet the requirement of aircrew engaged in flying Advanced Light helicopter (ALH), Light Combat Helicopter (LCH) and Mi-IV helicopter. The system consists of High Pressure Oxygen Source (HPOS) with various light weight composite cylinder to meet the space constraint of helicopter and its flight endurance. The system also consists of Chest Mounted Dilution Demand Breathing Regulator (DDOR) Mk-I for Mi-IV and Panel Mounted Dilution Demand Oxygen Regulator (MK-II) for ALH and LCH.

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