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Joined: 12 January 2019
Location: Spain
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Posted: 04 June 2019 at 1:07am | IP Logged Copy link to clipboard   Quote Nacho


I much appreciate if you could help me clarify Ed Lenz wing dimmensions.
According to his published information -see attached picture-

- Wing Width (¿Diameter or Radii?) = Turbine Diameter x 0,1875
- Wing Chord = Turbine Diameter x 0,4

Ed Lenz shows ¿R (Radii)? = 3.38 for a 3 ft Turbine Diameter as an example in the same document. See second image.

If Wing Width = 0,1875 x Turbine Diameter, then
3 ft x 12 inches/ft x 0,1875 = 6,75 inches (3,38 x 2)
which seems diameter nor radii...

- Are that formulae adimensional? In inches?
- Any formulae in metrics?
- Is the Wing Width the wing diameter or the wing radii?


Edited by Nacho on 04 June 2019 at 1:55am

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Joined: 08 November 2016
Location: Australia
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Posted: 04 June 2019 at 12:00pm | IP Logged Copy link to clipboard   Quote Boppa

His measurements are in inches

Lenz2 turbine

This picture (from that site) might help you visualise it better

HERES a inch to metric converter just select 'decimal inches' from the tabs up the top, to mm and plug in his inches numbers

eg 0.50 inches (the size of the three slots) is 12.7mm

Edited by Boppa on 04 June 2019 at 12:51pm
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