luv2run wrote:
Wise One wrote:You obviously didn't read your own link about drafting and swimming:
https://www.researchgate.net/publication/10678070_Drafting_Distance_in_SwimmingIt's not a 3-5% drag reduction in swimming like you claimed, it is 20% drag reduction which is huge.
And you are not going to get a 40-60% drag reduction in cycling unless you are riding into a headwind in a mass pack.
My point about how hypocritical and stupid triathlons are has been further supported. QED.
You are correct that drag reduction was 20% that led to a 3-5% performance improvement. I intended to write "performance improvement" not drag.
Yes, the 40-60% reduction in drag is in still air conditions. Did you not read that? I have seen it in track cycling with team pursuit where they are riding indoors.
And I also want to point out that 20% drag reduction for the swimmer in that study was with only one lead swimmer in front. With a pack of swimmers, you will expect to get a higher drag saving like you do in cycling packs. So the drag reductions drafting in the swim are pretty much exactly like the drag reductions you get on the bike. Except tryathletes are not sanctimonious about drafting in the swim.
I don't know why you think a 40-60% drag reduction for the 3rd/4th rider in a team pursuit in cycling is reasonable. The most commonly used values are between 30-35% drag savings for the 3rd/4th rider:
This was measured in the General Motors Wind Tunnel in 1996, and on the track using the SRM crank dynamometers. The lead rider in a 4-man pace line uses about 2 to 3 percent less energy than they would if riding solo.The next in line needs about 71 percent of the lead rider’s power, and the third and fourth riders about 65 percent. See “Racing cyclist power requirements in the 4000-m individual and team pursuitsâ€, Medicine and Science in Sports and Exercise, v31, no.11, pp 1677-1685, 1999. J.P. Broker, C.R. Kyle and E.R. Burke.
Heck, if you think you can save 60% of the drag with just 4 riders, even I could win an Olympic medal in the team pursuit.