Exactly! Here's some data on that from Hoerner: [ATTACH]
Sorry - I had never heard the expression "Aspect_ratio_coefficient" and was assuming you meant simply "Aspect ratio." The equations you show are...
My point is that the equation is wrong. Even between zero & one. (You forgot the denominator)
You might want to check that "best approximation ever". As written, it says that wings with aspect ratio greater than 1 have larger lift-curve...
The rule was grossly unfair to the challengers! They had to be seaworthy (aka slow) while the defender could be designed for the conditions...
This is the article that prompted me to cancel my subscription.
I don't see any mention of publishing or peer review. What about it makes you recommend it?
You're kidding, right? You think those foilers are capable of ocean crossings? I think that stipulation was ditched with the post WWII revival of...
More like centipedes than bipeds.
You're right that the optimum planforms could be curved like that, even without considering wind shear, but the shapes are more complicated than...
The benefits of endplating a boom (if any) are very small - probably slightly less than the amounts shown below (by Hoerner) for single end plates...
Paying attention to the bottom of the sail is what deck sweepers are all about! The best thing you can do at the bottom of a sail to reduce its...
No, it won't! Even for a given amount of lift, the induced drag goes down as the speed increases. Combine that with a decrease in lift and a...
Getting the tufts to flow means there is no flow separation, which usually means that the foil is not operating at CLmax. Since CLmax is the...
Also keep in mind that you need a way to control the lift that you add. The foils underwater are always controlled, either manually, with sensors,...
A good starting point would be to raise the amas up (without rotating) until they are just barely clear of the fully-loaded waterline at 0° heel...
It seems to me that the owner should consider that he might be doing something wrong before concluding that he's using the wrong airfoil section...
Can you elaborate?
Also note that whenever the apparent wind angle is larger than 90°, aerodynamic drag gives a positive contribution to the sail's thrust (the force...
Static pressure? I think you mean stagnation pressure (aka total pressure).
