TM 1-1520-238-10
7A-1
CHAPTER 7A
PERFORMANCE DATA FOR AH-64A HELICOPTERS
EQUIPPED WITH T-700-GE-701C ENGINES
Section I.
INTRODUCTION
NOTE
This chapter contains performance data for
helicopters equipped with T-700-GE-701C
engines. Performance data for heli-
copters equipped with T-700-GE-701
engines is contained in Chapter 7. Users
are authorized to remove the chapter that is
not applicable and are not required to carry
both chapters on the helicopter.
7A.1. PERFORMANCE DATA.
The purpose of this chapter is to provide the best available
performance data for the AH-64A helicopter equipped
with -701C engines. Regular use of this information will al-
low maximum safe use of the helicopter. Although maxi-
mum performance is not always required, regular use of
the information in this chapter is recommended for the fol-
lowing reasons:
a. Knowledge of performance margins will allow bet-
ter decisions when unexpected conditions or alternate
missions are encountered.
b. Situations requiring maximum performance will be
more readily recognized.
c. Familiarity with the data will allow performance to
be computed more easily and quickly.
d. Experience will be gained in accurately estimating
the effects of conditions for which data is not presented.
NOTE
The information is primarily intended for
mission planning and is most useful when
planning operations in unfamiliar areas or at
extreme conditions. The data may also be
used in flight, to establish unit or area stand-
ing operating procedures, and to inform
ground commanders of performance/risk
tradeoffs.
The data presented covers the maximum range of condi-
tions and performance that can reasonably be expected.
In each area of performance, the effects of altitude, tem-
perature, gross weight and other parameters relating to
that phase of flight are presented. In addition to the pre-
sented data, judgment and experience will be necessary
to accurately determine performance under a given set of
circumstances. The conditions for the data are listed un-
der the title of each chart. The effects of different condi-
tions are discussed in the text accompanying each phase
of performance. Where practical, data is presented at
conservative conditions. However, NO GENERAL CON-
SERVATISM HAS BEEN APPLIED.
7A.2. OPERATIONAL LIMITS.
CAUTION
Exceeding operational limits can cause
permanent damage to critical compo-
nents. Overlimit operation can decrease
performance, cause immediate failure or
failure on a subsequent flight.
Applicable limits are shown on the charts as bold lines
with a description. Performance generally deteriorates
rapidly beyond limits. If limits are exceeded, minimize the
amount and time. Enter the maximum value and time be-
yond limits on DA Form 2408-13 to ensure proper mainte-
nance action is taken.
