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SOARING BIRDS - Barn doors vs high aspect ratio
Does anyone have any thoughts about the different wings used by soaring birds? Eagles and other birds with low aspect ratio wings generally have multiple spread-out feathers at the tip. How do these feathers work? An albatross has a high aspect ratio wing with tapered tip and often flies in...- solidsail
- Thread
- Replies: 3
- Forum: Aeronautic & Space engineering general discussion
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Thick sail
Hello DoubleGeek, Thanks for the reply. I've designed a reversible version of this aerofoil, so it works both ways. It's a bit of a complicated mechanism at the moment, but I'm working on a simpler version. I'm intending to mount the sail on the existing mast, which was designed for a much...- solidsail
- Post #3
- Forum: Aeronautic & Space engineering general discussion
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Thick sail
I am designing a rigid sail system for a sailing boat. The boat is a 30ft. long trimaran with an estimated maximum speed of of 18-20 knots, but normally operating in the 8-10 knot range. The sail will be approximately 30ft span and 5ft chord with a rectangular planform. The aerofoil section I am...- solidsail
- Thread
- Replies: 13
- Forum: Aeronautic & Space engineering general discussion
