81
Federal Aviation Administration, DOT
Pt. 60, App. A
data that will be available early in the flight
test program will depend on the airplane
manufacturer’s flight test program design
and may not be the same in each case. The
flight test program of the airplane manufac-
turer should include provisions for genera-
tion of very early flight test results for
flight simulator validation.
f. The use of preliminary data is not indefi-
nite. The airplane manufacturer’s final data
should be available within 12 months after
the airplane’s first entry into service or as
agreed by the NSPM, the simulator sponsor,
and the airplane manufacturer. When apply-
ing for interim qualification using prelimi-
nary data, the simulator sponsor and the
NSPM should agree on the update program.
This includes specifying that the final data
update will be installed in the flight simu-
lator within a period of 12 months following
the final data release, unless special condi-
tions exist and a different schedule is accept-
able. The flight simulator performance and
handling validation would then be based on
data derived from flight tests or from other
approved sources. Initial airplane systems
data should be updated after engineering
tests. Final airplane systems data should
also be used for flight simulator program-
ming and validation.
g. Flight simulator avionics should stay
essentially in step with airplane avionics
(hardware and software) updates. The per-
mitted time lapse between airplane and
flight simulator updates should be minimal.
It may depend on the magnitude of the up-
date and whether the QTG and pilot training
and certification are affected. Differences in
airplane and flight simulator avionics
versions and the resulting effects on flight
simulator qualification should be agreed be-
tween the simulator sponsor and the NSPM.
Consultation with the flight simulator man-
ufacturer is desirable throughout the quali-
fication process.
h. The following describes an example of
the design data and sources that might be
used in the development of an interim quali-
fication plan.
(1) The plan should consist of the develop-
ment of a QTG based upon a mix of flight
test and engineering simulation data. For
data collected from specific airplane flight
tests or other flights, the required design
model or data changes necessary to support
an acceptable Proof of Match (POM) should
be generated by the airplane manufacturer.
(2) For proper validation of the two sets of
data, the airplane manufacturer should com-
pare their simulation model responses
against the flight test data, when driven by
the same control inputs and subjected to the
same atmospheric conditions as recorded in
the flight test. The model responses should
result from a simulation where the following
systems are run in an integrated fashion and
are consistent with the design data released
to the flight simulator manufacturer:
(a) Propulsion;
(b) Aerodynamics;
(c) Mass properties;
(d) Flight controls;
(e) Stability augmentation; and
(f) Brakes/landing gear.
i. A qualified test pilot should be used to
assess handling qualities and performance
evaluations for the qualification of flight
simulators of new airplane types.
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a. When a fully validated simulation (i.e.,
validated with flight test results) is modified
due to changes to the simulated airplane
configuration, the airplane manufacturer or
other acceptable data supplier must coordi-
nate with the NSPM if they propose to sup-
ply validation data from an ‘‘audited’’ engi-
neering simulator/simulation to selectively
supplement flight test data. The NSPM must
be provided an opportunity to audit the engi-
neering simulation or the engineering simu-
lator used to generate the validation data.
Validation data from an audited engineering
simulation may be used for changes that are
incremental in nature. Manufacturers or
other data suppliers must be able to dem-
onstrate that the predicted changes in air-
craft performance are based on acceptable
aeronautical principles with proven success
history and valid outcomes. This must in-
clude comparisons of predicted and flight
test validated data.
b. Airplane manufacturers or other accept-
able data suppliers seeking to use an engi-
neering simulator for simulation validation
data as an alternative to flight-test derived
validation data, must contact the NSPM and
provide the following:
(1) A description of the proposed aircraft
changes, a description of the proposed sim-
ulation model changes, and the use of an in-
tegral configuration management process,
including a description of the actual simula-
tion model modifications that includes a
step-by-step description leading from the
original model(s) to the current model(s).
(2) A schedule for review by the NSPM of
the proposed plan and the subsequent valida-
tion data to establish acceptability of the
proposal.
(3) Validation data from an audited engi-
neering simulator/simulation to supplement
specific segments of the flight test data.
c. To be qualified to supply engineering
simulator validation data, for aerodynamic,
engine, flight control, or ground handling
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