Quote:
Originally Posted by sgtlethargic
Will someone please explain the two front dashed lines? And the rear dashed lines? As I understand it, they're the top view. I don't get why they're longer than the profile view. Another way to say it is why doesn't the 2.5d measurement equal L? Why is there no measurement for the second from the front dashed line? A 3-d model of the template would really help.
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The template is half of a symetrical airfoil, top half represents a vehicle on the ground, because of ground effect the air acts as if the same image is mirrored below ground.
The point of max camber (height) is the 0 point of the template and each line going back represents 10% of distance to tail tip.
2.5 d does = L, remember d is the diameter, that is the top image max camber to the mirrored image max camber below.
and from the 0 point to tip of tail is 1.78d.
So if your vehicle is 48" high then d is 96"