SECTION I IDENTIFICATION AND DESCRIPTION

TB 9-4920-363-24

SECTION I

IDENTIFICATION AND DESCRIPTION

1. Test Instrument Identification.

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.

2. Forms, Records, and Reports

a. Forms, records, and reports required for calibration personnel at all levels are

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).

3. Calibration Description. TI parameters and performance specifications which

pertain to this calibration are listed in table 1.

Table 1. Calibration Description

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

4. Equipment Required. Table 2 identifies the specific equipment to be used in this

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

exceed the minimum use specifications listed in table 2. The accuracies listed in table 2