Helisafe 50th - 410-0000
Overview
The HeliSafe 50 percentile Male dummy was developed as a test instrument for the European HeliSafe helicopter safety program sponsored by the TNO Crash Safety Center starting in the year 2000. The 50th percentile dummy is an adaptation of a Hybrid III automotive dummy modified for FAA aircraft testing. Required modifications for the HeliSafeprogram included an erect seating posture,weight redistribution, accommodation of thorax deflection measurement with a modified abdomen, and the addition of accelerometers to the thoracic spine.
Dummy Design
The 50 dummy is an FAA dummy Hybrid II-Hybrid III combination using Hybrid II upper leg bones, a straight lumbar spine with adapters, a modified Hybrid II abdomen, a Hybrid II chest jacket, and additional accel mounts in the upper torso. This gives the dummy an erect seated posture and the ability to measure chest deflection as well as vertical and horizontal spinal column loads.
The dummy is constructed of steel and aluminum skeleton covered by urethane skin and vinyl foam. The neck and lumbar are rubber elements. Transducer replacements insure a complete structure if the actual transducers are not mounted. The construction is modular for ease of replacement, assembly and disassembly with articulated joints simulating human motion. The pelvis is molded in the seated position. Access is provided to the components for mounting accelerometers.
Testing
The head, neck, thorax, and knees of the dummy are lab tested to conform to Federal rules for the 50th.
Technical Specifications
Instrumentation
| Location | Description | Channels |
|---|---|---|
| Head | IE-111 (7264B-2000) - Accelerometer | CG: Ax, Ay, Az |
| Neck | IF-256: 4 Axis Upper Neck Load Cell | Fx, Fy, Fz, My |
| IF-223: 3 Axis Adjustable Lower Neck Load Cell | Fx, Fz, My | |
| Upper Torso | IE-111 (7264B-2000) - Accelerometer |
T1: Ax, Ay, Az
T4: Ax, Ay, Az
T12: Ax, Ay, Az
Rib 1, 2, 3,4,5,6: Ax
|
| IF-315: 3 Axis Thoracic Spine Load Cell | Fx, Fz, My | |
| Thorax Deflection Potentiometer (included in dummy) | Dx | |
| Lower Torso | IE-111 (7264B-2000) Accelerometer - On Sternum | L1: Ax, Ay, Az |
| IF-424: 3 Axis Lumbar Spine Load Cell | Fx, Fz, My | |
| Legs | IF-630: 3 Axis Femur Load Cell | Fx, Fz, My |
| IF-820: 4 Axis Upper Tibia Load Cell | Fx, Fz, Mx, My | |
| IF-819: 4 Axis Lower Tibia Load Cell | Fx, Fz, Mx, My |
Test Equipment
| Location | Fixture | Description |
|---|---|---|
External Dimensions& Weight
| Weight | 162.8 Lbs | 73.8 kg |
| Sitting Height | 35.7 in | 907 mm |
| Standing Height Esitmated | 66.8 in | 1697 mm |