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CONTROL INTERLOCKS TEST CONT.
RATE THRESHOLD (ALL FIRE) TEST

TM-10-1670-305-23P Automatic Ripcord Release AR2 Model 451 NSN 1670-01-369-7914 Test Chanber Assembly AR2 Model 452 NSN 1670-01-370-0752 Manual
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TM 10-1670-305-23&P 0010 00-10 ELECTRONIC TEST CHAMBER ASSEMBLY, MODEL 453 0010  00 OPERATION UNDER USUAL CONDITIONS - CONT OPERATING PROCEDURE NOTE Operating Procedures for the ELECTRONIC TEST CHAMBER ASSEMBLY, MODEL 453 consist of evaluation testing of the AR2. 1.     Verify that the JUMP/OFF switch is in OFF position, the storage cable and piston rod cap are removed, and that AR2 is cocked. WARNING If there is any indication of a leak in the aneroid, remove the AR2 from service.  A leaking aneroid may cause a malfunction which may result in death of parachutist. 2.     Check the AR2 for aneroid leakage at ground level before testing (WP 0008). NOTE AR2 functional test requirements are summarized in table below. AR2 FUNCTIONAL TESTS TYPE OF TEST AR2 DIAL SETTING RATE OF FALL ALTITUDE ACTUATION TOLERANCE Rate threshold Verification: Fire Test   5,500 ft     85/90 fps 300 ft No Fire Test   5,500 ft     60/65 fps No fire No Fire Test 10,500 ft     60/65 fps No fire Altitude Actuation Verification: Fire Test   3,000 ft 100/120 fps 300 ft Fire Test   8,000 ft 100/120 fps 300 ft Fire Test 15,000 ft 100/120 fps 500 ft Fire Test Required Actuation Altitude, MSL* 100/120 fps 300 ft or 500 ft * See paragraph 13 of Actuation Altitude Test.







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