Re: [Phys-l] global temperatures -- a modest proposal

[Bernard Cleyet <bernardcleyet@redshift.com>]

Yes, I've heard of the destruction of oil platforms.

bc

On 2009, Apr 08, , at 09:11, Hugh Haskell wrote:

> At 00:02 -0700 04/08/2009, Bernard Cleyet wrote:
> > Calculating the "wind resistance" of current ones, I think is an easy
> > engineering exercise.  The blades are made to be completely feathered
> > already?
> It isn't the steady winds that I worry about. A feathered blade can
> handle a substantial wind speed. I've flown around in airplanes with
> a propeller or two feathered at speeds up to 250 knots with not
> problems. What I don't know is how well a turbine blade that may be
> as much as 30 meters long would handle gust loading that could easily
> be non-constant over that dimension, if the hub structure could be
> damaged by violent slewing as the wind gusts changed direction
> quickly.