TB 9-4920-363-24
IDENTIFICATION AND DESCRIPTION
This bulletin provides instructions for the
calibration of Pitot and Static System Testers, United Manufacturing, Model PST Type 2,
Part No. 7365, and Satellite Engineering, Model S6-21312. The manufacturers' manuals
and MIL-T-58078 were used as the prime data sources in compiling these instructions. The
equipment being calibrated will be referred to as the TI (test instrument) throughout this
bulletin.
a. Model Variations. All models are similar except for airspeed indicator and
altimeter ranges. In addition, case leak valves on some models are accessible from top of
instrument, while on others, access is through rear of indicator panel. All pitot and static
system testers will be modified during overhaul to remove the manifold pressure and fuel
pressure gages.
b. Time and Technique. The time required for this calibration is approximately 3
hours, using the physical technique.
prescribed by TB 750-25.
b. Adjustments to be reported are designated (R) at the end of the sentence in which
they appear. When adjustments are in tables, the (R) follows the designated adjustment.
Report only those adjustments made and designated with (R).
pertain to this calibration are listed in table 1.
Test instrument parameters
Performance specifications
Airspeed
Range: 0 to 250 knots or 20 to 400 knots
Accuracy: Refer to table 5 for tolerances
Altimeter
Range: -1000 to 50,000 ft
Accuracy: Refer to table 3 for tolerances
Rate of climb
Range: 0 to 4500 ft/minute (maximum)
Accuracy: Refer to table 4 for tolerances
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-287; AN/GSM-421; or AN/GSM-705. Alternate items may be used
by the calibrating activity. The items selected must be verified to perform satisfactorily
prior to use and must bear evidence of current calibration. The equipment must meet or
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