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of their responsibility to maintain appropriate terrain
and obstruction clearance which may include flying the obstacle
DP.
3. Pilots must preplan to determine if the aircraft
can meet the climb gradient (expressed in feet per
nautical mile) required by the departure procedure,
and be aware that flying at a higher than anticipated
ground speed increases the climb rate requirement in
feet per minute. Higher than standard climb gradients
are specified by a note on the departure procedure
chart for graphic DPs, or in the Take−Off Minimums
and (Obstacle) Departure Procedures section of the
U.S. Terminal Procedures booklet for textual ODPs.
The required climb gradient, or higher, must be maintained
to the specified altitude or fix, then the
standard climb gradient of 200 ft/NM can be resumed.
A table for the conversion of climb gradient
(feet per nautical mile) to climb rate (feet per minute),
at a given ground speed, is included on page D1 of the
U.S. Terminal Procedures booklets.
d. Where are DPs located? DPs will be listed by
airport in the IFR Takeoff Minimums and (Obstacle)
Departure Procedures Section, Section C, of the Terminal
Procedures Publications (TPPs). If the DP is
textual, it will be described in TPP Section C. SIDs
and complex ODPs will be published graphically and
named. The name will be listed by airport name and
runway in Section C. Graphic ODPs will also have
the term “(OBSTACLE)” printed in the charted procedure
title, differentiating them from SIDs.
1. An ODP that has been developed solely for
obstacle avoidance will be indicated with the symbol
“T” on appropriate Instrument Approach Procedure
(IAP) charts and DP charts for that airport. The “T”
symbol will continue to refer users to TPP Section C.
In the case of a graphic ODP, the TPP Section C will
only contain the name of the ODP. Since there may be
both a textual and a graphic DP, Section C should still
be checked for additional information. The nonstandard
takeoff minimums and minimum climb
gradients found in TPP Section C also apply to
charted DPs and radar vector departures unless different
minimums are specified on the charted DP.
Takeoff minimums and departure procedures apply to
A71I1M0.65R CHG 2 37//1315//078
2/14/Departure Procedures 5−2−9
all runways unless otherwise specified. New graphic
DPs will have all the information printed on the
graphic depiction. As a general rule, ATC will only
assign an ODP from a nontowered airport when compliance
with the ODP is necessary for aircraft to
aircraft separation. Pilots may use the ODP to help
ensure separation from terrain and obstacles.
e. Responsibilities.
1. Each pilot, prior to departing an airport on an
IFR flight should consider the type of terrain and other
obstacles on or in the vicinity of the departure
airport; and:
2. Determine whether an ODP is available; and
3. Determine if obstacle avoidance can be maintained
visually or if the ODP should be flown; and
4. Consider the effect of degraded climb performance
and the actions to take in the event of an engine
loss during the departure.
5. After an aircraft is established on an ODP/
SID and subsequently vectored or cleared off of the
ODP or SID transition, pilots shall consider the ODP/
SID canceled, unless the controller adds “expect to
resume ODP/SID.”
6. Aircraft instructed to resume a procedure
which contains restrictions, such as a DP, shall be issued/
reissued all applicable restrictions or shall be
advised to comply with those restrictions.
7. If an altitude to “maintain” is restated, whether
prior to or after departure, previously issued “ATC”
altitude restrictions are cancelled. All minimum
crossing altitudes which are not identified on the
chart as ATC restrictions are still mandatory for
obstacle clearance. If an assigned altitude will not allow
the aircraft to cross a fix at the minimum crossing
altitude, the pilot should request a higher altitude in
time to climb to the crossing restriction or request an
alternate routing. ATC altitude restrictions are only
published on SIDs and are identified on the chart with
“(ATC)” following the altitude. When an obstruction
clearance minimum crossing altitude is also to be
published at the same fix, it is identified by the term
“(MCA).”
8. Pilots of civil aircraft operating from locations
where SIDs are established may expect ATC
clearances containing a SID. Use of a SID requires pilot
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