26 September 2006
Note 2: For Navy / Marine Corps projects, refer to NAVFAC Interim Technical
Guidance FY05-01, Fire Protection for Navy and Marine Corps Aircraft Hangars,
dated 6 January 2005 for requirements.
Note 3: For Army helicopter hangar projects, refer to Army ETLs for
Tension Fabric Hangars.
The minimum separation between tension fabric hangars and all other structures
will be 30.5 m (100 ft), with a clear zone of 15.3 m (50 ft) immediately adjacent to
the tension fabric structure. The clear zone cannot be used for storage and must
be clear of vegetation (maintained lawn is permitted). The clear zone may be
used as a street or driveway, but not for vehicle parking.
AIRCRAFT ACOUSTICAL ENCLOSURES.
Complete Enclosures (Hush-House).
Requirements are the same as those listed in paragraph 6-16, separate manual
controls for actuation of each foam system provided in the control room.
Exception: Air Force installations containing approved gaseous fire
extinguishing systems and high-expansion foam systems.
Out of Airframe Acoustical Enclosures (Test Cells).
Provide the requirements for complete acoustical enclosures listed in paragraph
6-17.1. In lieu of an overhead AFFF system, the following may be provided:
An overhead water deluge system having a density of 14.3
L/min/m (0.35 gpm/ft2) over the entire floor area; and a water spray system for
the engine having a density of 20.4 L/min/m (0.50 gpm/ft2) of engine surface
area; and a water spray system for the floor area beneath the engine having a
density of 20.4 L/min/m (0.50 gpm/ft2) of floor area.
Note 1: The overhead deluge system need not extend into the area where the
water spray systems for the engine and floor are present.
Note 2: For Air Force projects, the required density for the water deluge system
is 0.01579 L/s (0.25 gpm) per square foot over the entire floor area, and no floor
level water spray is required.
HYPERBARIC AND HYPOBARIC CHAMBERS.