The Frog is a small dinghy with an approximate length of 7'10" and an approximate beam of 4'. Its sprit and foresail rig has 40 square feet (4 m²) of sail area. The spritsail is a form of three or four-sided fore-aft Sail and its Rig. A foresail is one of a few different types of Sail set on the foremost mast ( foremast) of a Sailing vessel: A
Wilcox, Butch (1987). Dinghies and Daysailers. Phoenix, Arizona: Barca De Vela Publishing, 349 pages. ISBN 0944236391.