双桅帆船一种有纵帆装置的双桅航船，类似于双桅纵帆船，但在船尾的船舵放置有一种较小的补助帆桅。
A two-masted fore - and-aft-rigged sailing vessel similar to the ketch but having a smaller jigger mast stepped abaft the rudder.
旋转的、线型的和直接的驱动补助马达间接变速装置都可从110， 230和480 VAC中得到。
Rotary, linear, and direct drive servomotors are available in 110, 230, and 480 VAC options.
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