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Forum: Tech Log

15th Apr 2018, 03:55

Replies: 330

The Windward Turn Theory

Views: 50,667

Posted By Gauges and Dials

Similar, but with an important distinction: in...

Similar, but with an important distinction: in either case you need an inertial frame of reference that is decoupled from the moving air. A sailboat achieves this by sticking a big fin (keel or...

Forum: Tech Log

15th Apr 2018, 03:47

Replies: 330

The Windward Turn Theory

Views: 50,667

Posted By Gauges and Dials

In the days before gyroscopes, I've heard that...

In the days before gyroscopes, I've heard that our grandparents were taught, "If you find yourself in the clouds, enter a spin. You'll lose altitude (not to mention your lunch) predictably without...

Forum: Tech Log

14th Apr 2018, 16:41

Replies: 330

The Windward Turn Theory

Views: 50,667

Posted By Gauges and Dials

Albatrosses

Albatrosses stay fairly close to the ocean surface. Speaking as a sailor, I can assure you that what the wind is doing at the top of a 20m (60 ft) mast is often very different from what it is doing...

Forum: Tech Log

14th Apr 2018, 03:00

Replies: 330

The Windward Turn Theory

Views: 50,667

Posted By Gauges and Dials

Neither here nor there, but I love birds: ...

Neither here nor there, but I love birds:

Aren't albatrosses effectively doing wave soaring: positioning themselves in the updraft part of the standing waves that are created when a constant wind...

Forum: Tech Log

14th Apr 2018, 02:52

Replies: 330

The Windward Turn Theory

Views: 50,667

Posted By Gauges and Dials

Take out a pencil and re-label the current...

Take out a pencil and re-label the current position of the aileron trim indicator, "Neutral," wink at the other pilot, and say, "Thanks for catching that."

Forum: Tech Log

14th Apr 2018, 02:48

Replies: 330

The Windward Turn Theory

Views: 50,667

Posted By Gauges and Dials

Ask him this:

Someone should ask him:

"Is there any conceivable air data instrument that you could stick onto an aircraft (or a bird) that would tell you what said aircraft or bird was doing relative to the...

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