麦克格雷迪曾把一个飞行器进行改进，把它和废弃的光电电池伞状配电板装备在一起；那些电池能提供高达400[font=宋体]瓦的电源。
Mr MacCready fitted one of his aircraft with anumbrella-panel of leftover photovoltaic cells; they provided 400 watts of extrapower.
应急发电机和应急配电板能在主电源失灵的情况下维持电力供应。
The emergency generator and switchboard can keep power supply in case of failure of main power supply.
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