https://en.m.wikipedia.org/wiki/Drafting_(aerodynamics)
Yes, I have image copies of the buses example from Hucho from a post on this forum. It’s not in the most current edition.
More or less the drafting effect. Works for 200mph NASCAR as well as 25mph cycling racing. I’ve done the cycling thing with fast 3-8+ person lines and the effect is enormous. Being in the wake of the rider(s) in front of you at speed takes WAY less energy. When we went for long rides, guys would jockey to be the one following me because I’m a tall guy with big shoulders. And being tall meant that I was sitting higher on the bike to get the correct leg length to pedal ratio. So that made me even higher off the ground. They said even the difference between being behind me and being in front of me made a noticeable difference in their drag even when we were in the middle of a 8 guy line doing 25mph.
I was really pleased with the numbers I got with the open trailer at 2700lbs.
Now I’m curious what I end up with when pulling the 7x14 cargo trailer for some data.
George