Word: autogiro
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Dates: during 1940-1949
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...throw" a rotor blade, with immediately disastrous results. (This may have been what happened at Seattle and Providence.) The small tail rotor can and sometimes does come off, or get damaged. Engine failure by itself is not too serious, since a helicopter with a dead rotor acts like an autogiro and windmills down to earth...
...Roadable planes have been built before. Examples: auto designer Bill Stout's "Skylander"; a roadable autogiro; an "Arrowbile"; a "Roadplane"-all experimental...
They were spraying one acre near Park HQ last summer from the autogiro, having had some difficulties with the DDT never landing when it was dropped in a too-fine spray by ordinary plane (the drops just stayed up and wandered off toward Hudson...
...scene was Toronto's Algonquin Park, heavily infested with budworm moths. City officials first gave the park a thorough DDT spraying by autogiro, then counted the survivors. Results: the deadly chemical killed not only the moths and other insects, but practically all invertebrates, especially crayfish; many minnows; some trout (those that ate poisoned insects); more than half of the snakes and frogs. It also damaged a few broad-leaved trees. But the census takers noted, with pleased surprise, that birds, chipmunks, mice, beaver and deer in the park were apparently unharmed...
...confused with the autogiro, which uses an airplane propeller for forward movement, can neither take off vertically, hover (except with the help of a good wind), nor travel sideways or backward...