Pointing-so whats that all about?

   That sounds pretty short and wide with an aspect ratio of 2.7:1. A high aspect board could have an aspect ratio of 5:1 or greater. High aspect ratio foils stall at a higher speed but generate more lift for less drag when moving fast enough. What that means is that a LA board will work better in a slow boat at sub planing speeds than a HA board. Once the flow over the foil is sufficient a HA foil will be more efficient (think gliders with long narrow, super high aspect wings)

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Sam.Spoons Send Private Message Find Member's Posts Really should get out more Joined: 07 Mar 12 Location: Manchester UK Online Status: Offline Posts: 3401	Post Options Post Reply Quote Sam.Spoons Report Post Quote Reply Topic: Pointing-so whats that all about? Posted: 23 Dec 17 at 1:03pm
	That sounds pretty short and wide with an aspect ratio of 2.7:1. A high aspect board could have an aspect ratio of 5:1 or greater. High aspect ratio foils stall at a higher speed but generate more lift for less drag when moving fast enough. What that means is that a LA board will work better in a slow boat at sub planing speeds than a HA board. Once the flow over the foil is sufficient a HA foil will be more efficient (think gliders with long narrow, super high aspect wings)
	Spice 346 "Flat Broke" Blaze 671 "supersonic soap dish"

jeffers Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 29 Mar 04 Location: United Kingdom Online Status: Offline Posts: 3048	Post Options Post Reply Quote jeffers Report Post Quote Reply Posted: 27 Dec 17 at 12:50pm
	Pointing is useful sometimes. Off the start line for one or if you have slightly misjudged a mark. Speed is also good and in some classes you get a better VMG by being a little bit off the wind. I see this in club racing, my clubmate (who also sails a D-Zero) can always point much higher then me but I always go for speed if I have the room as I feel pointing is slow. Much better to get the foils to work than get that last degree of pointing. It shows in the results (he is usually behind me).
	Paul ---------------------- D-Zero GBR 74