 |
|||
|
|
|||
| ||||||||||
|
|  MIL-D-19326H
1/4 to 1/2 turns and leak test. If a leak persists, tighten another 1/4 to 1/2
turns and leak test again. If leakage persists, the part may be defective and
should be replaced or try tightening very carefully until leakage is stopped.
3.6.12 Breathing hose. Unless otherwise specified the breathing hose shall be
in accordance with MIL-H-81581/5 and the applicable part number of MS22055.
3.6.12.1 Applicable to the Air Force. The breathing hose shall be in
accordance with MIL- H-81581/5 and the applicable part number of MS22055, or MIL-H-
87961, (see 6.2f)
3.6.13 Personal services. Crewman's personal services connecting him to the
aircraft shall be separated from the aircraft upon ejection by an automatic
disconnection system. The disconnection force shall not applied to the crewman.
For disconnection forces, refer to applicable component specification. The
installation of the personal services and the lengths chosen shall be such that
the user's movements will not be restricted during his normal duties at his
station. However, excessive lengths, with resultant bulkiness and resistance to
breathing, shall be avoided. Suitable stowage provisions shall be provided in the
aircraft for protection of personnel services when not in use.
3.6.13.1 Flow requirement. For panel mounted oxygen regulator installation,
the combination of breathing hose, fittings and disconnects between the regulator
and the mask connector at the end of the breathing hose shall not exhibit a flow
resistance in excess of 2 inches of water (497.6 Pa) with a flow of 80 litres per
minute (1,333 cu.cm/s) of oxygen at NTP conditions.
3.6.14 Portable oxygen system.
3.6.14.1 Portable oxygen system (1800 psi) (12.41 MPa). when a portable
oxygen breathing system iS required but refilling during use is not contemplated,
the oxygen assembly shall be selected in accordance with MS22059, MS22061 or
Drawing 60D3570. A commercial product may be utilized if the above assemblies are
unsuitable for the application, subject to approval of the acquiring activity (see
6.2g).
* 3.6.14.2 Portable oxygen system (300 psi) (2,068 kPa). When a portable oxygen
breathing system is required along with refilling during flight, the oxygen
assembly shall be in accordance with Drawing 53C3794 for crew use with their
pressure breathing oxygen masks, or in accordance with Drawing 53D3970 if the full
face pressure breathing smoke mask is to be included. Each assembly shall be
secured in a bracket in accordance with Drawing 44B24627 which will retain the
assembly under flight conditions and provide for rapid removal for use. The
secured assembly shall be convenient to the crew duty stations and to each toilet.
Recharging hoses in accordance with MS22032 shall be accessible from crew duty
stations and toilets and have the filler valve and secured by a clip conforming to
Drawing 46A16236 in a vertical, valve down position.
3.6.15 Emergency oxygen. An emergency oxygen system shall be provided.
Provisions shall be made for the automatic opening of the oxygen bail-out supply
during ejection seat operation. Position of the emergency oxygen system shall be
determined by the type of seat configuration.
3.7 Performance.
17
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals