Originally Posted by Machka
Speaking of wind ... have any of you gone "sailing" on your bicycle?
I did that once on a day that had about 80km/h (50 mph) winds. I was riding my heavy mountain bike with the knobby tires, but any time I made any effort at all to pedal, my speed was up over 50 km/h. Just coasting though, I discovered that I could maintain about 20-25 km/h. Just for fun, I unzipped my jacket and held it out ...... and discovered that my coasting speed increased! For about 40 kms the friend I was riding with and I "sailed"!
And then we had to turn around and go back.

It took all my strength to maintain about 6 km/h.
A word of advice .... if you're ever going to try sailing, ride into the wind first, and sail back!
I did it for about a mile. The wind was not directly behind us so I trimed the sail. I angled my jacket a little to catch more wind and went a little faster. It was great.