"Air Disaster vol. 1, Macarthur Job", ISBN 1 875671 11 0. (It's a book!) Chapter 8: "I may have to ditch this aircraft". DC-9, May 2, 1970. "At the time of the ditching the cloudbase was low, it was raining heavily, and visibility was only a little over half a kilometre. ... Levelling off Capt. DeWitt positioned the aircraft directly over the crest of a swell, laying off a small amount of crosswind drift to fly along the crest as he progressively reduced speed and height. ... he raised the nose about 6 degrees and flew the DC-9 onto the swell at about 90 knots." It can also be done in bad weather and rough water. Highly recommended - all 4 volumes.