380 

14 CFR Ch. I (1–1–19 Edition) 

Pt. 60, App. C 

the tolerances. In these cases, the solution is 
to compare the results to the MQTG. The 
continuing qualification results are com-
pared to the results in the MQTG for accept-
ance. The flight simulator operator and the 
NSPM should look for any change in the 
flight simulator performance since initial 
qualification. 

b. Continuing Qualification Evaluation Test 

Results Presentation 

(1) Flight simulator operators are encour-

aged to over-plot continuing qualification 
validation test results with MQTG flight 
simulator results recorded during the initial 
evaluation and as amended. Any change in a 
validation test will be readily apparent. In 
addition to plotting continuing qualification 
validation test and MQTG results, operators 
may elect to plot reference data. 

(2) There are no suggested tolerances be-

tween flight simulator continuing qualifica-
tion and MQTG validation test results. In-
vestigation of any discrepancy between the 
MQTG and continuing qualification flight 
simulator performance is left to the discre-
tion of the flight simulator operator and the 
NSPM. 

(3) Differences between the two sets of re-

sults, other than variations attributable to 
repeatability issues that cannot be explained 
should be investigated. 

(4) The flight simulator should retain the 

ability to over-plot both automatic and man-
ual validation test results with reference 
data. 

E

ND

I

NFORMATION

 

lllllllllllllllllllllll

B

EGIN

QPS R

EQUIREMENTS

 

17. A

LTERNATIVE

D

ATA

S

OURCES

, P

ROCE

-

DURES

, 

AND

I

NSTRUMENTATION

: L

EVEL

B 

S

IMULATORS

O

NLY

 

a. Sponsors are not required to use the al-

ternative data sources, procedures, and in-
strumentation. However, any sponsor choos-
ing to use alternative sources must comply 
with the requirements in Table C2E. 

E

ND

QPS R

EQUIREMENTS

 

lllllllllllllllllllllll

B

EGIN

I

NFORMATION

 

b. It has become standard practice for ex-

perienced simulator manufacturers to use 
such techniques as a means of establishing 
data bases for new simulator configurations 
while awaiting the availability of actual 
flight test data. The data generated from the 
aerodynamic modeling techniques is then 
compared to the flight test data when it be-
comes available. The results of such com-
parisons have become increasingly con-
sistent, indicating that these techniques, ap-

plied with appropriate experience, are de-
pendable and accurate for the development 
of aerodynamic models for use in Level B 
simulators. 

c. Based on this history of successful com-

parisons, the NSPM has concluded that those 
who are experienced in the development of 
aerodynamic models for simulator applica-
tion can successfully use these modeling 
techniques to alter the method for acquiring 
flight test data for Level B simulators. 

d. The information in Table C2E (Alter-

native Data Sources, Procedures, and Infor-
mation) is presented to describe an accept-
able alternative to data sources for simu-
lator modeling and validation and an accept-
able alternative to the procedures and in-
strumentation traditionally used to gather 
such modeling and validation data. 

(1) Alternative data sources that may be 

used for part or all of a data requirement are 
the Helicopter Maintenance Manual, the 
Rotorcraft Flight Manual (RFM), Helicopter 
Design Data, the Type Inspection Report 
(TIR), Certification Data or acceptable sup-
plemental flight test data. 

(2) The sponsor should coordinate with the 

NSPM prior to using alternative data 
sources in a flight test or data gathering ef-
fort. 

e. The NSPM position on the use of these 

alternative data sources, procedures, and in-
strumentation is based on the use of a rigor-
ously defined and fully mature simulation 
controls system model that includes accu-
rate gearing and cable stretch characteris-
tics (where applicable), determined from ac-
tual aircraft measurements. The model does 
not require control surface position measure-
ments in the flight test objective data in 
these limited applications. 

f. Data may be acquired by using an iner-

tial measurement system and a synchronized 
video of the calibrated helicopter instru-
ments, including the inclinometer; the force/ 
position measurements of flight deck con-
trols; and a clear visual directional reference 
for a known magnetic bearing (e.g., a runway 
centerline). Ground track and wind corrected 
heading may be used for sideslip angle. 

g. The sponsor is urged to contact the 

NSPM for clarification of any issue regard-
ing helicopters with reversible control sys-
tems. This table is not applicable to Com-
puter Controlled Aircraft flight simulators. 

h. Use of these alternate data sources, pro-

cedures, and instrumentation does not re-
lieve the sponsor from compliance with the 
balance of the information contained in this 
document relative to Level B FFSs. 

i. The term ‘‘inertial measurement sys-

tem’’ is used in table C2E includes the use of 
a functional global positioning system 
(GPS). 

j. Synchronized video for the use of alter-

native data sources, procedures, and instru-
mentation should have: 

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