Yawl sternpost, and could usually be raised to allow the boat to be beached. Yawl A yawl is a two-masted sailing craft whose mainmast is taller than the mizzen mast (or aft-mast). Compared to a similar sized ketch, a yawl's mizzen mast is set further aft and its mizzen sail is smaller. Historically, the yawl was a commercial working vessel, but today, the yawl is a fore-and-aft rigged pleasure yacht. In Europe yawls are much less common than the more popular ketch. The yawl was originally developed as a rowboat with two small masts to assist the oarsmen. (When adding a
Radio masts and towers for research to find ways to minimize the hazard that communications towers can pose to birds. There have also been instances of rare birds nesting in cell towers and thereby preventing repair work due to legislation intended to protect them. Since June 2010, Telecom operators in the USA can erect new telecom masts or towers as the government has lifted the moratorium, which was earlier placed on the issuance of permits for the construction of telecommunication towers. Radio masts and towers Radio masts and towers are, typically, tall structures designed to support antennas (also known as aerials) for telecommunications and