P
Phil Allison
Guest
upsid...@downunder.com wrote:
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** All this "tilting at windmills" stuff if getting nowhere.
The stupid things are boring as batshit.
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However, there is another use for big propellers which this short vid explains in an entertaining way:
https://www.youtube.com/watch?v=4RSfrOsubuk
Shows the development of the Bell 47 helicopter, the first of its kind.
...... Phil
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These are far too small, the blades spend most if not all in the
turbulent zone, thus the wind speed varies during blade travel and the
wind could even flow in opposite directions at different highs. This
will also create uneven torque on the blades during the blade travel.
The hub highs should be at about 600 m, with about current size
blades. Thus, the blades would remain all times above turbulent air
flow in constant wind speed range.
** All this "tilting at windmills" stuff if getting nowhere.
The stupid things are boring as batshit.
---------------------------------------
However, there is another use for big propellers which this short vid explains in an entertaining way:
https://www.youtube.com/watch?v=4RSfrOsubuk
Shows the development of the Bell 47 helicopter, the first of its kind.
...... Phil