Maptech 22104 Full Size Chart Kit, Chesapeake & Delaware Bays. A lot of navigation information for a fraction of the price of individual NOAA charts. These kits provide you with full color reproductions of government charts and aerial photos of choice anchorages. Includes Loran-C and GPS waypoint coordinates, best courses and mileage between areas. Region chart kits are 17 x 22. Includes companion CD.