The Liberty L-12 is an American water-cooled 45° V-12 aircraft engine displacing 1,649 cubic inches (27 L) and making 400 hp (300 kW) designed for a high power-to-weight ratio and ease of mass production. It saw wide use in aero applications, and, once marinized, in marine use both in racing and runabout boats.
Liberty L-12
Major Henry H. "Hap" Arnold with the first Liberty V12 engine completed
Ford Liberty 12 data plate with firing order
Closeup of a Liberty L-12's valvetrain details, almost matching the later Mercedes D.IIIa design
A runabout is any small motorboat holding between four and eight people, well suited to moving about on the water. Characteristically between 20' and 35' in length, runabouts are used for pleasure activities like boating, fishing, and water skiing, as a ship's tender for larger vessels, or in racing. Some common runabout types are bow rider, center console, cuddy boat and walkaround. The world's largest runabout, Pardon Me, is 48 feet long and owned by the Antique Boat Museum in Clayton, New York.
A 2010 Hacker-Craft triple cockpit runabout
The bows of several Riva Aquaramas and Aristans, an Aquarama in center
2004, 22 ft Spencer Runabout, 380 hp Crusader engine, Spencer Boatworks, Saranac Lake, New York
The 48' Hackercraft Pardon Me built by Hutchinson Boat Works of Alexandria Bay, New York. In the back is a portion of the 106' houseboat LaDuchesse, both are located at the Antique Boat Museum in Clayton, New York.
