| CRITICALITY CODE JUSTIFICATION | FEAT |
| FUNCTIONAL DESCRIPTION | MOISTURE: THE DESIGN CONFIGURATION SHALL BE SUCH THAT MOISTURE CANNOT COLLECT IN DEPRESSIONS OR IRREGULAR SURFACES TO THE EXTENT OF CAUSING MALFUNCTION FROM CORROSION, FREEZING OR OTHER INJURIOUS EFFECTS; VIBRATION AND SHOCK: TRANSDUCER ASSEMBLY SHALL BE DESIGNED TO AVOID THE EFFECTS DUE TO AIRCRAFT EXCITATION FREQUENCIES AS FOLLOWS: SPIRAL BEVEL MESH: 3241 TO 3441 HZ; LOWER PLANETARY 1ST HARMONIC: 1407 TO 1495 HZ; LOWER PLANET 2ND HARMONIC: 2814 TO 2990 HZ; LOWER PLANETARY 3RD HARMONIC: 4222 TO 4483 HZ; MAJOR AUXILIARY POWER UNIT FREQUENCIES: ROTOR SPEED: 1021 - 1123 HZ; OUTPUT SHAFT: 137 TO 140 HZ;SHOCK: THE VALVE ASSEMBLY SHALL BE DESIGNED TO WITHSTAND AND FUNCTION AFTER BEING SUBJECTED TO 12 IMPACTS OF 15 (FORCES OF NEWTONIAN GRAVITY) |
| GENERAL CHARACTERISTICS ITEM DESCRIPTION | THE TRANSDUCER ASSEMBLY SHALL BE CAPABLE OF CONTINUOUS OPERATION THROUGHOUT THE AMBIENT TEMPERATURE RANGE OF - 50 DEGREES FAHRENHEIT TO +275 DEGREES FAHRENHEIT; UNIT SHALL BE CAPABLE OF OPERATION FROM SEA LEVEL TO 50,000 FEET ALTITUDE COMBINED WITH TEMPERATURES FROM -50F TO +160F |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | TRANSDUCER ASSEMBLY, DUAL, LINEAR, ILCA |
| SPECIAL FEATURES | CRITICAL APPLICATION ITEM |
| SPECIAL TEST FEATURES | MISSION RELIABILITY: EACH TRANSDUCER SHALL HAVE NO LESS THAN .99999 PROBABILITY OF COMPLETING A 1 HOUR MISSION WITHOUT INCURRING A MISSION FAILURE |
| SUPPLEMENTARY FEATURES | CLEANING OF SAND AND DUST: AIRBORNE SAND AND DUST PARTICLES ENCOUNTERED IN DESERT OPERATIONS, PER METHOD 510, PROCEDURE I, OF MIL-STD-810B; SALT SPRAY: ATMOSPHERE CONTAINING SALT LADEN MOISTURE, PER METHOD 509, PROCEDURE I OF MIL-STD-810B |