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Reach performance while wearing the Space Shuttle launch and entry suit during exposure to launch accelerations

机译：在暴露于发射加速期间穿着航天飞机发射和进入服时达到性能

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Crewmen aboard the Space Shuttle are subjected to accelerations during ascent (the powered flight phase of launch) which range up to +3 G(sub x). Despite having 33 missions and nine years experience, not to mention all the time spent in development prior to the first flight, no truly quantitative reach study wearing actual crew equipment, using actual Shuttle seats and restraints has ever been done. What little information exists on reach performance while under acceleration has been derived primarily from subjective comments gathered retrospectively from Shuttle flight crews during their post mission debrief. This lack of reach performance data has resulted in uncertainty regarding emergency procedures that can realistically be performed during and actual Shuttle ascent versus what is practiced in the ground-fixed and motion-based Shuttle Simulators. With the introduction on STS-26 of the current Shuttle escape system, the question of reach performance under launch accelerations was once again raised. The escape system's requirement that each crewman wear a Launch/Entry Suit (LES), parachute harness, and parachute were all anticipated to contribute to a further degradation of reach performance during Shuttle ascent accelerations. In order to answer the reach performance question in a quantitative way, a photogrammetric method was chosen so that the actual reach values and associated envelopes could be captured. This would allow quantitative assessment of potential task performance impact and identify areas where changes to our Shuttle ascent emergency procedures might be required. Also, such a set of reach values would be valid for any similar acceleration profile using the same crew equipment. Potential Space Station applications of this data include predicting reach performance during Assured Crew Return Vehicle (ACRV) operations.
机译：航天飞机上的乘员在上升过程中（发射的动力飞行阶段）承受的加速度高达+3 G（sub x）。尽管有33次任务和9年的经验，更不用说在第一次飞行之前的所有开发时间，但还没有进行过真正的定量研究，即没有穿上实际的乘员装备，没有使用实际的航天飞机座椅和约束装置。在加速状态下，关于到达性能的信息很少，主要来自航天飞机机组人员在任务后汇报时回顾性收集的主观意见。缺少到达性能数据会导致不确定的紧急程序，这些程序可以在实际的航天飞机上升过程中实际执行，而在地面固定和基于运动的航天飞机模拟器中则难以实现。随着当前的航天飞机逃生系统在STS-26上的引入，再次提出了在发射加速条件下到达性能的问题。逃生系统要求每名机组人员都必须穿着发射/进入服（LES），降落伞安全带和降落伞的要求都将在航天飞机上升加速期间进一步降低伸手性能。为了定量地回答到达性能问题，选择了摄影测量方法，以便可以捕获实际的到达值和关联的包络。这将允许对潜在的任务绩效影响进行定量评估，并确定可能需要更改我们的航天飞机上升应急程序的领域。同样，这样的一组到达值对于使用相同乘员设备的任何类似的加速度曲线都是有效的。该数据可能在空间站中的应用包括在确保乘员返回飞行器（ACRV）操作期间预测到达性能。

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