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Vman455 · 11-01-2020, 07:00 PM

It's impossible to say without testing, but I'm doubtful that any technique we have of measuring drag changes is sensitive to show whether or not fences like that are helping. Have you tuft-tested with the fences in place?

11-01-2020, 07:00 PM	#2 (permalink)
Vman455 Moderator Join Date: Feb 2012 Location: Urbana, IL Posts: 1,936 Pope Pious the Prius - '13 Toyota Prius Two Team Toyota SUV 90 day: 51.62 mpg (US) Tycho the Truck - '91 Toyota Pickup DLX 4WD 90 day: 22.22 mpg (US) Thanks: 199 Thanked 1,800 Times in 938 Posts	It's impossible to say without testing, but I'm doubtful that any technique we have of measuring drag changes is sensitive to show whether or not fences like that are helping. Have you tuft-tested with the fences in place? __________________ UIUC Aerospace Engineering www.amateuraerodynamics.com