Fits up to 1 1/2" round rail, or oval-shaped wooden rails. Easily installed and removed for storage, wooden board (not included) transfers the downward pressure to the boat gunnel. Fits all Scotty downriggers and can be used with No. 1026 Pedestal Swivel Mount. Dimensions: 6 1/8" x 7 1/8".

Reprints from the 1983 Tide and Current Tables used by the US Coast Guard for Merchant Marine Licensing Examinations and reprinted here for training and examination preparation only. To see all Marine Engineering Publications offered by this author click on authors name above.