## 4.3.6.3 STRENGTH TEST, ADDITIONAL MEANS OF COMPLIANCE HARNESS (ONLY): 

## 4.3.6.4 STRENGTH TESTS, ALTERNATE MEANS OF COMPLIANCE, DROGUE CANOPY (ONLY) 

## 4.3.7 FUNCTIONAL TESTS (Twisted Lines): 

A harness may, at the manufacturer‟s  option, be placarded with a higher average peak opening force than what was measured in 4.3.6 tests by performing additional tower drop tests as outlined below: 

The harness shall be drop tested using a torso shaped dummy, three (3) times for each of four (4) different loading conditions. 

The dummy weight shall be not less than 75% of harness maximum operating weight and the drop distance shall be as necessary to generate the required forces. 

Up to three (3) separate harnesses may be used; however each harness shall be subjected to a minimum of one test at each of the following four test conditions. 

(a) Test condition one –  All risers loaded to a combined load of at least 100% of placard maximum load. 

(b) Test condition two –  Only left side harness/canopy attachment point(s) loaded to a combined load of at least 66% of placard load. 

(c) Test condition three –  Only right side harness/canopy attachment point(s) loaded to a combined load of at least 66% of placard load. 

(d) Test condition four –  Each unique brake setting shall be tested to a minimum of 16.7% of placard load if applicable. 

For parachute assemblies in which a drogue parachute canopy is an integral part of the reserve or emergency parachute assembly, the drogue may be separately tested at the conditions determined in 4.3.6. The drogue canopy itself and all related components of the drogue assembly must be tested as a functional subsystem of the parachute assembly. 

A minimum of 5 drops shall be made with a weight not more than the maximum operating weight dummy or person$^{1}$ in each harness. The airspeed at the time of pack opening shall be 60 KEAS (111.1 km/h) 

Procedural Note:  The suspension lines shall be twisted together (360 degrees) three times in the same direction within the upper one third of the suspension line length beginning immediately below the attachment point to the canopy. The twists shall be placed in the lines before the suspension lines are stowed. 

Performance Requirement: The parachute must be functionally open within 133% of the time calculated in 4.3.8 from the time of pack opening. 

## 4.3.8 FUNCTIONAL TESTS (Normal Pack - All Types): 

Opening Time or Altitude Loss:  Using the MOW in pounds and the MPOS in KTAS for all 4.3.8 tests the maximum allowable opening time and the maximum allowable altitude loss on any drop shall be determined from the following formulas.. 

(a) The greater of 3.00 seconds or the value determined as follows: 

