Priority Mail Dimensional Weight Calculation. 1Round off (e.g., 20.5 rounded off to the next whole number is 21, and 20.4 rounded off is 20), 2Round up (e.g., rounding up either 44.2 or 44.8 to the next whole pound is 45).
The Black Swallowtail (Papilio polyxenes) is a species of butterfly. It is also called the American Swallowtail or Parsnip Swallowtail. It is found throughout much of North America.
Learn about swallow tail surfboards from Quiksilver's Michael Baron in this Howcast video about how to pick a surfboard. This is a swallowtail. Its straight rails come out to the tip, just like your square tail, but then it's got a big V from point to point. What that cutout does, it gives you a lot more control compared to the square tail, if it was straight across. Now you've got the V giving you control, and also in these boards, a lot of times they'll run V off the tail of the board to help the board come over rail to rail. Swallowtails go rail to rail.