[crystalk]

Couldn't be MUCH slower. LOL. The question might not be so much the speed of any alleged current, but whether there is enough water to float the boat.

[Free Trapper]

When the Aztec ran Cortez' boys out of Tenochtitlan the Spaniards were nearly overcome on the causeways by the Aztec Navy(hundreds of canoes).The Spanish built 13 brigantines,dug a canal to float them to the lake,and placed them under sail to gain naval superiority.When the Spanish ran short on cannon powder,they built a catapult that didn't work out quite as well.After threatening the Aztec with destruction by use of the catapult for several days,their first shot went up and landed back on the catapult.Cortez was not pleased and had the catapult torn apart.