Chapter 6
distances to be observed at all times.
Table 6.3. Minimum Separation Distance on Bomber Alert Aprons from the Centerline of a
Through Taxilane to a Parked Aircraft.
Standard
Standard
Minimum
Minimum
AIRCRAFT
(Meters)
(Feet)
(Meters)
(Feet)
B-52 or
B-52 Mixed Force
45.72
150
38.10
125
B-1
B-2
KC-135 or
38.10
125
30.48
100
KC-135 and FB-111 Mixed Force
KC-10
30.48
100
22.86
75
FB-111 Only
6.13.4.1. Air Force Waivers:
6.13.4.1.1. Wingtip Clearances. The MAJCOM may grant waivers to the 15.24 meters [50
feet] wingtip clearance requirement when sufficient ramp area is not available. In no case
will the wingtip clearance be waived to less than 9.14 meters [30 feet].
6.13.4.1.2. Wingtip Clearances Based on Taxilane Width. When the minimum separation
distance between a taxilane centerline and the nose/tail of a parked aircraft is reduced below
the distance shown in Table 6.1, the minimum waiver wingtip clearance distance of 9 meters
[30 feet] must be increased 0.3 meters [1 foot] for each 0.3 meter [1 foot] reduction in
separation distance. Example: B-52 nose to taxilane centerline 43 meters [140 feet] -
minimum waiver wingtip distance 12 meters [40 feet]; nose to centerline distance 40 meters
[130 feet] or less - no waiver permitted, comply with 15 meter [50 foot] minimum wingtip
clearance.
6.13.5. Design Aircraft. To facilitate flexibility in future operations, new alert ramp construction
should conform to B-52 standards. Aircraft parked in shelters are exempt from the above parking
separation criteria.
6.13.6. Alert Aircraft Parking Arrangements:
6.13.6.1. Fighter Arrangements. Fighter aircraft are parked at 45-degree angles to dissipate the
heat and velocity of jet blast.
6.13.6.2. Non-Fighter Arrangements. Non-fighter aircraft should be parked in rows.
6.13.7. Jet Blast Distance Requirements. Jet blast safe distances should be considered when
planning and designing parking locations on alert pads. Safe distance criteria are presented in
Attachment 8.
6.13.8. Taxi-In/Taxi-Out Capabilities. Alert aprons and pads should be designed either for taxi-
in/taxi-out parking or for push-back parking. Taxi-in/taxi-out parking, shown in Figure 6.29, is
preferred since alert aircraft can be quickly taxied into position under their own power. Back-in
parking, shown in Figure 6.30, requires less paved area.
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