Aeromedical Evaluation of the Army Molecular Sieve Oxygen Generator (AMSOG) Systems

Molecular sieve technology has been considered as an alternative source of oxygen for US Army operational fixed and rotary wing aircraft. With the constraints of weight, size, and electrical power, the Army molecular sieve oxygen generator (AMSOG) appeared to meet operational needs. Initial design w...

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Bibliographic Details
Main Authors: Pettyjohn,Frank S, McNeil,Roderick J, Akers,Lloyd A, Rice,George P, Piper,Charles F
Format: Report
Language:English
Subjects:
AIRCRAFT
Anatomy and Physiology
ARGON
BREATHING GASES
Helicopters
HYPOBARIC CHAMBERS
Industrial Chemistry and Chemical Processing
MOLECULAR SIEVES
OV-1 aircraft
OXYGEN EQUIPMENT
OXYGEN GENERATORS
PHYSIOLOGICAL EFFECTS
SHORT TAKEOFF AIRCRAFT
V-1 aircraft
V/STOL
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Summary:Molecular sieve technology has been considered as an alternative source of oxygen for US Army operational fixed and rotary wing aircraft. With the constraints of weight, size, and electrical power, the Army molecular sieve oxygen generator (AMSOG) appeared to meet operational needs. Initial design was predicated on direct replacement of current oxygen equipment for the two man crew OV-1 Mohawk surveillance aircraft. Initial bench and hypobaric chamber testing demonstrates a capability to provide 90-94% oxygen at sea level using engine bleed or compressed air at 40 PSIG, 20 to 22 liters per minute (LPM), normal temperature 70 deg F, pressure 760 Torr, dry (NTPD). Ninety-four percent (94%) oxygen is expected to support both physiologic needs and provide denitrogenation capabilities for US Army aircrew. Argon is concentrated to levels of 6-8% and is considered to be low; however, physiologic effects have not been fully defined. In-flight studies and toxicology evaluation are continuing. (Author)