TM 1-1510-262-10
ad. Horizontal Distance from Reference Zero to Third Segment Climb - Flaps Approach.
(1) Description. The Horizontal Distance from Reference Zero to Third Segment Climb - Flaps Approach
graph (Fig. 7-31) depicts the horizontal distance traveled to the third segment of a one engine inoperative climb.
(2) Purpose. This graph is used to determine the horizontal distance required for a one engine inoperative
climb from a point 50 feet above the runway (reference zero) to a point where the third segment climb has been
reached, given free air temperature in degrees Celsius, ield pressure altitude in feet, takeoff weight in pounds, and
head or tail wind component in knots. For operation with ice vanes extended, increase free air temperature by 11
C before entering graph.
ae. Close-in Take-off Flight Path.
(1) Description. The Close-in Take-off Flight Path - Flaps Approach graph (Fig. 7-32) depicts the climb
gradient required to clear an obstacle within 1000 feet of reference zero.
(2) Purpose. This graph is used to determine net climb gradient in % required to clear an obstacle of
known height plus a desired margin of clearance, given the horizontal distance of the obstacle from reference zero
in feet.
af. Distant Take-off Flight Path.
(1) Description. The Distant Take-off Flight Path - Flaps Approach graph (Fig. 7-33) depicts the climb
gradient required to clear an obstacle within 2.4 nautical miles from reference zero.
(2) Purpose. This graph is used to determine net climb gradient in % required to clear an obstacle of
known height plus a desired margin of clearance, given the horizontal distance of the obstacle from reference zero
in nautical miles.
ag. Net Take-off Flight Path-Third Segment.
(1) Description. The Net Take-off Flight Path-Third Segment graph (Fig. 7-34) depicts the climb gradient
for the third segment of a one engine inoperative climb.
(2) Purpose. This graph is used to determine the net climb gradient in % for a one engine inoperative
climb from 500 feet above the runway to 1500 feet above the runway at V ENR , given free air temperature in degrees
Celsius, pressure altitude in feet, aircraft weight in pounds, and head or tail wind component in knots. For operation
with ice vanes extended, decrease net climb gradient by 1.5 percentage points.
ah. Climb-Two Engine - Flaps Up.
(1) Description. The Climb-Two Engine - Flaps Up graph (Fig. 7-35) depicts rate of climb for two engine
operation.
(2) Purpose. This graph is used to determine the rate of climb in feet per minute and climb gradient in %
for a two engine climb with laps up, given free air temperature in degrees Celsius, pressure altitude in feet, and
aircraft weight in pounds. For operation with ice vanes extended, rate of climb will be reduced by approximately
500 feet per minute.
ai. Climb-Two Engine - Flaps Approach.
(1) Description. The Climb-Two Engine - Flaps Approach graph (Fig. 7-36) depicts rate of climb for two
engine operation.
(2) Purpose. This graph is used to determine the rate of climb in feet per minute and climb gradient in
% for a two engine climb with laps approach, given free air temperature in degrees Celsius, pressure altitude
in feet, and aircraft weight in pounds. For operation with ice vanes extended, rate of climb will be reduced by
approximately 500 feet per minute.
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