4dogs-
No data that I've seen. I can tell you from doing the training (and actual experience) that it would equate to about 5-8 knots of crosswind.
An outboard will be the equivilant of about 15 kts. 15 knots from the "good" side vs. 15 knots from the "bad" side will make about 2500' +/- difference in my liftoff point.