Table of Contents
Advertisement
7A-1. INTRODUCTION TO PERFORMANCE.
The graphs and tables in this chapter present
performance information for takeoff, climb, landing,
and flight planning at various parameters of weight,
power,
altitude,
and
explaining
appropriate
performance graphs.
7A-2. HOW TO USE GRAPHS.
a. All airspeed and references to airspeeds in
this chapter are indicated airspeeds unless otherwise
noted.
b. A reference line indicates where to begin
following the guidelines.
reference line first, then follow the guidelines to the
next item by maintaining the same proportional
distance between the guideline above and the
guideline below the projected line. For instance, if the
projected line intersects the reference line in the ratio
of 30% down/70% up between the guidelines, then
maintain this same 30%/70% relationship between the
guidelines all the way to the next item.
c. The Airspeed Calibration - Normal System –
Takeoff Ground Roll graph was used to obtain V
V
Indicated Airspeeds (IAS).
r
airspeeds were obtained by using the Airspeed
Calibration - Normal System graph.
d. In addition to presenting the answer for a
particular set of conditions, the example on a graph
also presents the order in which the various scales on
the graph should be used. For instance, if the first
item in the example is Outside Air Temperature (OAT),
then enter the graph at the known OAT.
cases, performance planning may require entering the
chart at one point in order to establish a baseline and
then entering the chart at another point in order to
obtain the answer.
example, or establish the necessary baseline and then
follow the sequence of the example.
e. The associated conditions define the specific
conditions from which performance parameters have
been determined. They are not intended to be used
as
instructions;
however,
determined from charts can be achieved only if the
specified conditions exist.
CHAPTER 7A
PERFORMANCE DATA
temperature.
Examples
use
are
provided
Always project to the
All other indicated
In some
Follow the sequence of the
performance
D2 T1 T2
f. Notes have been provided on various graphs
and tables to approximate performance with ice vanes
extended.
airspeed,
conditions. At lower altitudes, where operation on the
torque limit is possible, the effect of ice vane extension
will be less, depending upon how much power can be
for
recovered after the ice vanes have been extended.
7A-3. EXAMPLES.
The following example presents the performance
decision making process for correct flight planning and
completion of the Takeoff and Landing Data (TOLD)
card.
Weather conditions for the departure and
destination airports are given to illustrate the impact on
performance planning and mission capabilities. The
example mission is from Airport Alpha (AAA) to Airport
Bravo (BBB). The en route distance is 700 nm. The
planned cruise altitude is FL240.
a. Conditions. At Airport Alpha (AAA):
OAT . . . . . . . . . . . . . . . . . . . . . . . . 85°F (+30°C)
Field Elevation . . . . . . . . . . . . . . . . . . 3800 feet
and
Altimeter Setting. . . . . . . . . . . . . . . .29.72 in. Hg
1
Wind . . . . . . . . . . . . . . . . . . . . 330° at 10 knots
Do
not
performance planning.
Runway 35 Length . . . . . . . . . . . . . . . .6000 feet
Weather . . . . . . . . . . . . . . . . . .400 feet overcast
Visibility . . . . . . . . . . . . . . . . . . .1 mile, rain/haze
b. Other Than Standard Takeoff Minimums
and/or (Obstacle) Departure Procedures. At Airport
Alpha:
Takeoff Minimums. . . . . . . . . . . . Rwy 35, 500-2*
*Or standard with minimum climb of 250/NM to
values
5000c.
The effect will vary, depending upon
temperature,
altitude,
NOTE
use
headwinds
TM 1-1510-218-10
and
ambient
for
takeoff
7A-1
- Quick Links:
- Aircraft
Hide quick links:
Advertisement
Table of Contents
