A system used in some trailerable sailboats without a weighted fixed keel.
应用于某些可用拖车运输的，没有重固定龙骨的帆船上的一个系统。
2
Shallow draft centerboard vs. deep fixed keel - trailerable vs. launched by boatyard.
浅吃水的活动船板帆船 vs 深吃水的固定龙骨船？ 可用拖车载运的船 vs 要拴在船坞上的船？
3
A popular trailerable centerboard sailboat is the MacGregor 26, which with its water ballast has the advantages of centerboard boats but not all the disadvantages.