Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Aerodynamic Streamlining Template: Part-C

Tesla · 01-21-2013, 04:40 AM

I went down this track and plotted the equation for the 0040 airfoil below:

I tried to get it to scale as best I could on screen with a ruler, 300mm long and 60mm high at apex.
It fits the 2.5:1 ratio, has Apex to tail ratio of 1.7729.....

Could someone try to overlay it on the template, I haven't done that yet, too busy playing with the numbers.
The plot was done with 110 data (extra 10 on nose to get nice curve) points, but I could easily go more.

The equation does not go to 0 at tail, but there is some additional stuff to add to the equation to fix this, just thought I'd post this up now.

01-21-2013, 04:40 AM	#390 (permalink)
Tesla Master EcoModder Join Date: Feb 2012 Location: Australia Posts: 355 The Truck - '02 Nissan GU Patrol ST Thanks: 5 Thanked 76 Times in 50 Posts	NACA Airfoil 0040 - Is this the template? I went down this track and plotted the equation for the 0040 airfoil below: I tried to get it to scale as best I could on screen with a ruler, 300mm long and 60mm high at apex. It fits the 2.5:1 ratio, has Apex to tail ratio of 1.7729..... Could someone try to overlay it on the template, I haven't done that yet, too busy playing with the numbers. The plot was done with 110 data (extra 10 on nose to get nice curve) points, but I could easily go more. The equation does not go to 0 at tail, but there is some additional stuff to add to the equation to fix this, just thought I'd post this up now.