kpayne on VMOFRWIN702 with $$_JOB

Pt. 60, App. A

14 CFR Ch. I (1-1-19 Edition)

sideslip where the aerodynamic model remains valid for training. For stall recovery
training tasks, satisfactory aerodynamic
model fidelity must be shown through at
least 10 degrees beyond the stall identification angle of attack. For the purposes of
determining this validity range, the stall
identification angle of attack is defined as
the angle of attack where the pilot is given
a clear and distinctive indication to cease
any further increase in angle of attack
where one or more of the following characteristics occur:
i. No further increase in pitch occurs when
the pitch control is held at the full aft stop
for 2 seconds, leading to an inability to arrest descent rate;
ii. An uncommanded nose down pitch that
cannot be readily arrested, which may be
accompanied by an uncommanded rolling
motion;
iii. Buffeting of a magnitude and severity
that is a strong and effective deterrent to
further increase in angle of attack; and
iv. Activation of a stick pusher.
The model validity range must also be capable of simulating the airplane dynamics as
a result of a pilot initially resisting the
stick pusher in training. For aircraft
equipped with a stall envelope protection
system, the model validity range must extend to 10 degrees of angle of attack beyond the stall identification angle of attack with the protection systems disabled
or otherwise degraded (such as a degraded
flight control mode as a result of a pitot/
static system failure).
c. Model Characteristics: Within the declared
range of model validity, the SOC must address, and the aerodynamic model must incorporate, the following stall characteristics where applicable by aircraft type:
i. Degradation in static/dynamic lateral-directional stability;
ii. Degradation in control response (pitch,
roll, yaw);
iii. Uncommanded roll acceleration or rolloff requiring significant control deflection
to counter;
iv. Apparent randomness or non-repeatability;
v. Changes in pitch stability;
vi. Stall hysteresis;
vii. Mach effects;
viii. Stall buffet; and
ix. Angle of attack rate effects.
An overview of the methodology used to address these features must be provided.
5. Statement of Compliance (Subject Matter Expert Pilot Evaluation): The sponsor
must provide an SOC that confirms the
FSTD has been subjectively evaluated by a
subject matter expert (SME) pilot who is
knowledgeable of the aircraft-s stall characteristics. In order to qualify as an acceptable
SME to evaluate the FSTD-s stall character-

istics, the SME must meet the following requirements:
a. Has held a type rating/qualification in the
aircraft being simulated;
b. Has direct experience in conducting stall
maneuvers in an aircraft that shares the
same type rating as the make, model, and
series of the simulated aircraft. This stall
experience must include hands on manipulation of the controls at angles of attack
sufficient to identify the stall (e.g., deterrent buffet, stick pusher activation, etc.)
through recovery to stable flight;
c. Where the SME-s stall experience is on an
airplane of a different make, model, and
series within the same type rating, differences in aircraft specific stall recognition cues and handling characteristics
must be addressed using available documentation. This documentation may include aircraft operating manuals, aircraft
manufacturer flight test reports, or other
documentation that describes the stall
characteristics of the aircraft; and
d. Must be familiar with the intended stall
training maneuvers to be conducted in the
FSTD (e.g., general aircraft configurations,
stall entry methods, etc.) and the cues necessary to accomplish the required training
objectives. The purpose of this requirement
is to ensure that the stall model has been
sufficiently evaluated in those general aircraft configurations and stall entry methods that will likely be conducted in training.
This SOC will only be required once at the
time the FSTD is initially qualified for stall
training tasks as long as the FSTD-s stall
model remains unmodified from what was
originally evaluated and qualified. Where an
FSTD shares common aerodynamic and
flight control models with that of an engineering simulator or development simulator
that is acceptable to the FAA, the FAA will
accept an SOC from the data provider that
confirms the stall characteristics have been
subjectively assessed by an SME pilot on the
engineering or development simulator.
An FSTD sponsor may submit a request to
the Administrator for approval of a deviation from the SME pilot experience requirements in this paragraph. This request for deviation must include the following information:
a. An assessment of pilot availability that
demonstrates that a suitably qualified
pilot meeting the experience requirements
of this section cannot be practically located; and
b. Alternative methods to subjectively
evaluate the FSTD-s capability to provide
the stall recognition cues and handling
characteristics needed to accomplish the
training objectives.

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