TM 11-5840-281-35/1
Control settings
Step No.
Test equipment
Equipment under test
Test procedure
Performance standard
b. Blanked range mark
through elevation scan on Control-Indicator
C-6988/ TPN-18 under test.
sector moves smoothly
b. Place ANTENNA (servo) switch to L until
through azimuth scan.
blanked range mark sector is at bottom of
azimuth scan, then to R until blanked range
mark sector is at top of azimuth scan.
Observe blanked range mark sector moving
through azimuth scan on Control-Indicator C-
6988/TPN-18 under test.
Section IV. FLIGHT TESTS
a. Commissioning Flight Tests. A commissioning
4-24.
General
flight test is the most complete. It is designed to obtain
complete information as to equipment performance,
Radar Set AN/TPN-18, a ground control approach (gca)
general radar operator performance, and ability of the
system, is classified under a broad heading of air
facility to support its operational requirement. The
navigation aids. A flight test of an air navigation aid
Federal Aviation Agency requires that a commissioning
system is an operational performance evaluation of the
flight test be accomplished prior to the official
air navigation aid system as a facility. A flight test
commissioning of any air navigation facility.
A
checks the facility in the operational environment in
commissioning flight test is requested after insuring that
which it must function within certain specified tolerances
all equipment is properly adjusted and operating
to fulfill its mission. To do this, the flight test must check
normally. Results from a commissioning flight test are
and evaluate the associated communication and iff
used to determine criteria for use as standards in future
equipments (when applicable), the backup power, the
flight tests
operating and emergency procedures, the traffic holding
patterns, and radar operator performance as well as the
b. Periodic Flight Tests. Periodic flight tests are
alignment and accuracies of the equipment. Since these
regularly scheduled flight tests which normally are not as
factors are all variables, contingent on the particular
complete as commissioning flight tests but are
airfield at a particular geographical location (also variable
comprehensive enough to insure that a commissioned
factors), the delineation of one procedure is not practical.
facility will meet the required standards and support its
However, the information in paragraphs 4-23 through 4-
operational requirements.
Periodic flight tests are
30 below should enable the performance of local flight
automatically scheduled at intervals established by TM
tests and suffice as a guide in official flight tests
112557-25
conducted by an official flight test agency
c. Special Flight Tests. Special flight tests are
4-25.
Types of Flight Tests and When Flight Tests
initiated on request when required by special
Are Required
circumstances. Such circumstances include aircraft
accidents where air navigation facilities may be involved,
TM 11-2557-25 defines the general types of flight tests
major maintenance or equipment modifications (such as
(flight inspections) as commissioning, periodic, special,
replacement of antennas or other major parts which may
surveillance, and site evaluation. This section considers
affect system accuracies or antenna patterns), reported
site evaluation flight tests and acceptance flight tests to
equipment
malfunctions
or
deficiencies,
and
be special flight tests. The general types of flight tests
determination of performance of new or rehabilitated
and when they are required are described in a through d
equipment (acceptance flight tests). Acceptance flight
below.
tests provide data for use in determining if the equipment
meets the equipment specifications
4-61
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