United States Marine Corps Weapons & Equipment
Oxygen Transfer Pump System
Primary function: To maintain the equipment needed to perform closed-circuit
diving and high altitude jumps in an environment which is oxygen safe.
Length: 20 feet
Width: 96 inches
Height: 96 inches
Weight: 4,500 pounds (est.)
Power Requirements: 120/208 Volt AC, 3 Phase, 60 Hz, 60 Amp max.
Introduction date: December 1992
Unit Replacement Cost: $175,000
Features: The Oxygen Transfer Pump System (OTPS) consists of various oxygen transferring times within a proper
internally configured Marine Corps Expeditionary Shelter System. Properly configured, the OTPS gives the using
unit the ability to safely and effectively maintain all of its closed-circuit diving and military freefall equipment
in an oxygen-safe area. The OTPS is designed to be used on or off deployments. The OTPS can be operated in several
different mission scenarios ranging from expeditionary to shipboard and in various climates from extreme cold to
extreme heat.
Background: The mission of the Marine Corps reconnaissance underwater combat diver and airborne qualified Marine
has expanded to include closed-circuit underwater diving and high altitude parachute operations. This expanded
operational role has forces the reconnaissance Marines to use oxygen breathing devices, such as the Underwater
Breathing Apparatus (see Fact Sheet below) and the military freefall oxygen mask, to complete their missions. The
OTPS has been fielded to satisfy the need to properly and safely maintain the equipment needed to perform closed-circuit
diving and high altitude jumps in an environment which is oxygen safe.
Inventory: Active duty, 14; Reserve, 3.
Information and Photos Courtesy of United States Marine Corps
