Evaluation of the Sierra, hanging, quick-don, crew, pressure-breathing, oxygen mask.

Details

• Creators:
  McFadden, Ernest B. ; Lategola, Michael T.
• Corporate Creators:
  United States. Office of Aviation Medicine
• Subject/TRT Terms:
  • Jet transports
  • Altitude
  • Flight crews
  • Breathing apparatus
  • Oxygen
  • Decompression
  • Evaluation and assessment
  • Electrocardiography
  • Oscilloscopes
  • Flowmeters
  More +
• Publication/ Report Number:
  AM 66-20 ; DOT/FAA/AM-66/20
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Civil Aerospace Medical Institute
• Abstract:
  A new design, hanging, quick-don crew pressure breathing oxygen mask applicable to jet-transport operations was tested and evaluated in three phases, consisting of (1) exposing five masked subjects to a stepwise altitude-chamber flight profile with a maximum altitude of 43,000 feet; (2) rapidly decompressing five masked subjects from 8,000 to 40,000 feet in 45 to 50 seconds; and (3) similarly decompressing these subjects and donning the mask during the decompression. ; Donning was accomplished in 2.5 to 6.3 seconds after the donning signal, at altitudes varying between 28,000 to 31,000 feet. When used with a pressure-breathing regulator incorporating the military pressure-breathing schedule, the mask maintained subjects in a satisfactory physiological condition at 43,000 feet. When worn prior to and during a rapid decompression, the mask provided adequate protection. When donned during the rapid-decompression profile, there was a significant transient decrease in blood saturation without loss of consciousness followed by a rapid recovery of blood saturation.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/20789/dot_20789_DS1.pdf
• File Type:
  [PDF - 1.68 MB]
• Collection(s):
  FAA Civil Aerospace Medical Institute ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:c28e0a9a3da5862da65a2db11b385752191402975f0fc102a340634d8e881eba44aaf0903a1990d675984b1beb7e1f676d67e92f7ebaf27f584a5cc236966bee