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Category II aircraft- 3,000 feet.
3. When either the succeeding or both are
Category II aircraft- 3,000 feet.
4. When either is a Category III aircraft-
6,000feet. (See FIG 3-12-2.)
FIG 3-12-1
Sea Lane Departure Operations
FIG 3-12-2
Sea Lane Departure Operations
b. A preceding landing aircraft has taxied out of
the sea lane.
NOTEDue
to the absence of braking capability, caution should be
exercised when instructing a float plane to hold a position
as the aircraft will continue to move because of prop
generated thrust. Clearance to taxi into position and hold
should, therefore, be followed by takeoff or other clearance
as soon as practicable.
3-12-3. ARRIVAL SEPARATION
Separate an arriving aircraft from another aircraft
using the same sea lane by ensuring that the arriving
aircraft does not cross the landing threshold until one
of the following conditions exists:
a. The other aircraft has landed and taxied out of
the sea lane. Between sunrise and sunset, if you can
determine distances by reference to suitable
landmarks and the other aircraft has landed, it need
not be clear of the sea lane if the following minimum
distance from the landing threshold exists:
JO 7110.65S 2/14/08
3-12-2 Sea Lane Operations
1. When a Category I aircraft is landing behind
a Category I or II- 2,000 feet. (See FIG 3-12-3.)
FIG 3-12-3
Sea Lane Arrival Operations
2. When a Category II aircraft is landing behind
a Category I or II- 2,500 feet. (See FIG 3-12-4.)
FIG 3-12-4
Sea Lane Arrival Operations
[View 2]
b. The other aircraft has departed and crossed the
end of the sea lane or turned to avert any conflict. (See
FIG 3-12-5.) If you can determine distances by
reference to suitable landmarks and the other aircraft
is airborne, it need not have crossed the end of the sea
lane if the following minimum distance from the
landing threshold exists:
1. When only Category I aircraft are involved-
1,500 feet.
2. When either is a Category II aircraft-
3,000feet.
3. When either is a Category III aircraft-
6,000feet. (See FIG 3-12-6.)
FIG 3-12-5
Sea Lane Arrival Operations
FIG 3-12-6
Sea Lane Arrival Operations
2/14/08 JO 7110.65S
NAVAID Use Limitations 4-1-1
Chapter 4. IFR
Section 1. NAVAID Use Limitations
4-1-1. ALTITUDE AND DISTANCE
LIMITATIONS
When specifying a route other than an established
airway or route, do not exceed the limitations in the
table on any portion of the route which lies within
controlled airspace. (For altitude and distance
limitations, see TBL 4-1-1, TBL 4-1-2,
TBL 4-1-3, and TBL 4-1-4.) (For correct application
of altitude and distance limitations see
FIG 4-1-1 and FIG 4-1-2.)
REFERENCEFAAO
JO 7110.65, Para 4-1-5, Fix Use.
FAAO JO 7110.65, Para 5-6-2, Methods.
TBL 4-1-1
VOR/VORTAC/TACAN NAVAIDs
Normal Usable Altitudes and Radius Distances
Class Altitude
Distance
(miles)
T 12,000 and below 25
L Below 18,000 40
H Below 14,500 40
H 14,500 - 17,999 100
H 18,000 - FL 450 130
H Above FL 450 100
TBL 4-1-2
L/MF Radio Beacon (RBN)
Usable Radius Distances for All Altitudes
Class Power (watts)
Distance
(miles)
CL Under 25 15
MH Under 50 25
H 50 - 1,999 50
HH 2,000 or more 75
TBL 4-1-3
ILS
Usable Height and Distance*
Height (feet)
above transmitter
Distance
(miles from transmitter)
4,500 10 (for glideslope)
4,500 18 (for localizer)
*Use the current flight check height/altitude limitations if
different from the above minima.
TBL 4-1-4
MLS
Usable Height and Distance*
Height (feet)
above transmitter
Distance
(miles from transmitter)
20,000 20 (for glideslope)
20,000 20 (for azimuth)
*Use the current flight check height/altitude limitations if
different from the above minima.
FIG 4-1-1
Application of Altitude and Distance Limitations
[Application 1]
JO 7110.65S 2/14/08
4-1-2 NAVAID Use Limitations
FIG 4-1-2
Application of Altitude and Distance Limitations
[Application 2]
4-1-2. EXCEPTIONS
Altitude and distance limitations need not be applied
when any of the following conditions are met:
a. Routing is initiated by ATC or requested by the
pilot and the following is provided:
1. Radar monitoring.
2. As necessary, course guidance unless the
aircraft is /E, /F, /G, or /R equipped.
NOTE-
1. Para 5-5-1, Application, requires radar separation be
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