Should this be in the Penis Size section?

6-1/2 inches

I don't know the minimal size. It probably depends on your needs and how long you expect to take at maximum time to complete, to know how many supplies to bring. For sailing, here's training: http://www.offshore-sailing.com/ Here's some advice: http://outside.away.com/outside/features/200601/life-list-8.html Tom McNally attempted it in a 3 foot 10 inch boat, The Big C! Pointers: http://www.answerbag.com/articles/How-to-Cross-the-Atlantic-by-Boat/d562ad2a-20d4-4250-7fb4-710641bbdf00

the boat i had in mind: http://www.west-bay.com/pdf/15_110%20On%20Line%20Marketing%20package_Feb%2006%202008.pdf

If you are going go 1st class all the way: USS NEW JERSEY Class and type: Iowa-class battleship Displacement: 45,000 tons Length: 887 ft 7 in (270 m) Beam: 108.2 ft (33 m) Draft: 28.9 ft (8.8 m) Speed: 33 knots (61 km/h) Complement: 1,921 officers and men Sensors and processing systems: AN/SPS-49 Air Search Radar AN/SPS-67 Surface Search Radar AN/SPQ-9 Surface Search / Gun Fire Control Radar Electronic warfare and decoys: AN/SLQ-32 AN/SLQ-25 Nixie Decoy System 8 × Mark 36 SRBOC Super Rapid Bloom Rocket Launchers Armament: 1943: 9 x 16 in (406 mm) 50 cal. Mark 7 guns 20 × 5 in (127 mm) 38 cal. Mark 12 guns 80 x 40 mm 56 cal. anti-aircraft guns 49 x 20 mm 70 cal. anti-aircraft guns 1968: 9 x 16 in (406 mm) 50 cal Mark 7 guns 20 x 5 in (127 mm) 38 cal Mark 12 guns 1982: 9 x 16 in (406 mm) 50 cal. Mark 7 guns 12 × 5 in (127 mm) 38 cal. Mark 12 guns 32 x BGM-109 Tomahawk cruise missiles 16 x RGM-84 Harpoon Anti-Ship missiles 4 x 20 mm/76 cal. Phalanx CIWS Armor: Belt: 12.1 in (307 mm) Bulkheads: 11.3 in (287 mm) Barbettes: 11.6 to 17.3 in (295 to 439 mm) Turrets: 19.7 in (500 mm) Decks: 7.5 in (190 mm) Aircraft carried: 1943: 2 catapults 3 Vought OS2U Kingfisher Floatplanes 1982: Deck for up to 4 Helicopters

It should depend on how stupid or how brave you happen to be.