They were so worried about nosedives, for instance, that all of their early models had an elevator in the front, which would catch the air like a parachute and help provide a safe, level landing.

例如，他们很担心飞机俯冲，所以，他们早期的所有模型前面都有一个升降舵，升降舵可以像降落伞一样捕捉空气，并且实现安全、水平的着陆。