Question re Venarive module
On page 57 the module says: "The load capacity of a river-boat is roughly equal to the square of its length (in feet) multiplied by 50lbs. Thus a common river-boat of about 30ft in length can
carry around 45,000lbs (22.5 tons†)."
The Pilot's Almanac in Shipwrigtht 8 gives the following claculatiion for a 30 foot Talbar: 30*.36*.30/100 for 11.69 tons.
Which method is correct?