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The Martin-Baker Crash Attenuating Troop Seat Sysytem (CATSS) is a proven, long stroking crashworthy seat employed in military helicopters. Today there are two types of Martin-Baker off-the-shelf helicopter troop seats available – direct wall and pole mounting. Recent laboratory tests have demonstrated that these seats have the ability to meet land vehicle mine blast attenuation requirements. |
Martin-Baker recently qualified latest technology energy attenuating troop seats for helicopters.
Army Research Laboratory (ARL) tested one of these designs to determine the ability to attenuate the effects of mine blast energy.
ARL test results (see back) demonstrated our off-the-shelf helicopter troop seat had the ability to meet land vehicle mine blast attentuation requirements.
Two types of troop seats available – direct wall and pole mounting.
Wall mount pictured on reverse side.
Stryker installation pictured here demonstrates ease of installation in existing vehicles
Wall to ceiling
Wall to wall
Floor to ceiling
Floor to wall
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The CATSS design permits a vertical seat stroke of nearly 12". Although only 10-20% of that stroke’s capacity stroke was seen in tests, the seat did demonstrate significant mitigation of shock - producing DRI numbers below the 17.7 limit. This indicates that the degree of shock mitigation is proportional to the amount of displacement opposite the impulse direction. Contrary results were expected regarding the vertical excursion of the seat, since the more severe 8 m/s test was expected to exceed the seat’s stroke limit. However, the high rate loading characteristics of mine engagements indicate that the strain rate in a metal-deforming energy absorber must be dependent on the duration of the input. |