TM 1-1510-262-10
y. Take-Off Distance - Flaps Approach.
(1) Description. The Take-off Distance Over 50 Foot Obstacle - Flaps Approach graph (Fig. 7-26) depicts
the relationship of takeoff distance to free air temperature, ield pressure altitude, takeoff weight, runway gradient,
and wind component.
(2) Purpose. This graph is used to determine the ground roll and total distance required to take off and
clear a 50 foot obstacle, given free air temperature in degrees Celsius, ield pressure altitude in feet, aircraft takeoff
weight in pounds, runway gradient in % up or down, and head or tail wind component in knots. For operations with
ice vanes extended, increase distance by 22%. Consult Maximum Take-Off Weight Flaps Approach As Limited By
Tire Speed graph for possible tailwind prohibitions.
z. Accelerate Stop - Flaps Approach.
(1) Description. The Accelerate-Stop - Flaps Approach graph (Fig. 7-27) depicts the distance required to
accelerate to V 1 (takeoff decision speed) then stop.
(2) Purpose. This graph is used to determine the total runway length required to accelerate to V 1 (takeoff
decision speed), set power levers to ground ine at V 1 , then use maximum braking (without sliding tires) until the
aircraft is stopped, given free air temperature in degrees Celsius, ield pressure altitude in feet, takeoff weight in
pounds, up or down runway gradient in %, and head or tail wind component in knots. For operation with ice vanes
extended, increase distance by 5%. Consult Maximum Take-Off Weight As Limited By Tire Speed - Flaps Approach
graph for possible tailwind prohibitions.
aa. Accelerate Go - Flaps Approach.
(1) Description. The Accelerate Go Distance Over 50 Foot Obstacle - Flaps Approach graph (Fig.7-28)
depicts the total distance required to accelerate to takeoff airspeed, have an engine failure, then continue the
takeoff until 50 feet above the runway.
(2) Purpose. This graph is used to determine the total distance required to accelerate to V 1 (takeoff
decision speed), have an engine failure, then continue the climb until 50 feet above the runway, given free air tem-
perature in degrees Celsius, ield pressure altitude in feet, takeoff weight in pounds, up or down runway gradient
in %, and head or tail wind component in knots. For operation with ice vanes extended, increase distance by
35%. Consult Maximum Take-Off Weight As Limited By Tire Speed - Flaps Approach graph for possible tailwind
prohibitions.
ab. Net Take-off Flight Path-First Segment - Flaps Approach.
(1) Description. The Net Take-off Flight Path-First Segment - Flaps Approach graph (Fig. 7-29) depicts
the net climb gradient for the irst segment of a one engine inoperative climb.
(2) Purpose. This graph is used to determine the climb gradient in % for a one engine inoperative climb
from liftoff until the landing gear completes the retraction cycle, given free air temperature in degrees Celsius, ield
pressure altitude in feet, takeoff weight in pounds, and head or tail wind in knots. For operation with ice vanes
extended, decrease net climb gradient by 1.0 percentage point.
ac. Net Take-off Flight Path-Second Segment - Flaps Approach.
(1) Description. The Net Take-off Flight Path-Second Segment - Flaps Approach graph (Fig. 7-30) de-
picts the net climb gradient for the second segment of a one engine inoperative climb.
(2) Purpose. This graph is used to determine the climb gradient in % for a one engine inoperative climb
from completion of the landing gear retraction cycle, until reaching 500 feet above the runway, given free air
temperature in degrees Celsius, ield pressure altitude in feet, takeoff weight in pounds, and head or tail wind in
knots. For operation with ice vanes extended, decrease net climb gradient by 1.0 percentage point.
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