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Bicycle Bob · 07-02-2009, 01:10 AM

Well, that was tedious, digging out a 1927 study, but it says at NACA UK Mirror report description page
that the lowest drag was on the 4.62 fineness ratio. This was at a very low Reynold's number, which may account for all the Zeppelins being much finer.

I see that figure 13, presumably the source of this discussion, does not seem to agree with figures 7 and 9

07-02-2009, 01:10 AM	#35 (permalink)
Bicycle Bob EcoModding Apprentice Join Date: May 2008 Location: N. Saskatchewan, CA Posts: 1,805 Appliance White - '93 Geo Metro 4-Dr. Auto Last 3: 42.35 mpg (US) Stealth RV - '91 Chevy Sprint Base Thanks: 91 Thanked 460 Times in 328 Posts	Well, that was tedious, digging out a 1927 study, but it says at NACA UK Mirror report description page that the lowest drag was on the 4.62 fineness ratio. This was at a very low Reynold's number, which may account for all the Zeppelins being much finer. I see that figure 13, presumably the source of this discussion, does not seem to agree with figures 7 and 9 Last edited by Bicycle Bob; 07-02-2009 at 01:17 AM.. Reason: Addendum