Windows. Do not use windows in tower structure. Provide tower cab
with heat-absorbing insulated window units in accordance with NFGS-08800.
Provide units with a light transmissivity of not less than 85 percent, heat
transmission (U value) of 0.60 maximum, and free of parallax or other optical
distortion. Provide spare window units interchangeable with any other similar
unit in the tower cab. Provide window shades for tower cab windows. Refer to
FAA Specification FAA-E-2470.
Mechanical Requirements. Use peripheral strip cooling diffusers to
reduce solar impact to the personnel and wall diffusers to control tower cab
Emergency Electrical Power. Provide an emergency generator with
automatic starting and switching capability as described in par. 2.5.7.
Consider a common generator when the air traffic control tower is sited
adjacent to the air operations building, MTRACON, FACSFAC, JCF, or tower base
building. Provide emergency power to the following:
Loads as required by NFPA-101.
Exterior security lighting and security systems.
Uninterrupted Power Supply (UPS). Provide non-redundant UPS in
accordance with par. 2.5.8. Use anticipated load to determine the size of
Lighting. Design lighting in accordance with par. 2.5.6. Provide
dimmer adjustable white ceiling lights in tower cab. Provide down lighting
over work areas on separate switch.
Fire Protection. Refer to MIL-HDBK-1008, Fire Protection for
Facilities, Engineering, Design, and Construction, and NFPA 101. Consult
local fire prevention agency to determine if air traffic control tower meets
height criteria to be classified as a "High Rise Building."
Security. Air traffic control towers are normally located within
security. If the facility is located within a restricted area of a lower
level of security, provide additional measures to meet the minimum security
requirements for the level of security assigned to the facility. The level of
security and the designer's responsibility for particular security elements
will be designated in the IDSEP. Refer to par. 2.6. Provide an electronic