>>>A fatter profile, all other things
>>being equal, will generate more lift at a given angle of attack, but may
>>also stall earlier and will create more drag-partly due to increased wetted
>>area, frontal profile, and the induced drag that comes with lift.<<<


whoa whoa whoa.

I THOUGHT the fatter sections would:
- generate more lift thru a wider range of angles of attack - GOOD
- create more drag- BAD
- STALL LATER- GOOD

whereas, thinner sections would:
- generate less lift thru the same range of angles of attack - BAD
- create less drag - GOOD
- stall earlier - BAD

as defined above, you are saying fatter sections:
- generate more lift - GOOD
- create more drag - BAD
- stall earlier - BAD

and thinner sections:
- generate less lift - BAD
- create less drag - GOOD
- stall later - GOOD

so it seems like, the way you have delineated the trade-offs, there is
much less incentive to go with a thicker foil.

Please understand, I'm not trying to argue here, I'm just trying to grasp
the concepts!

I also understand that if the boat is planing downhill at 15 kn the
thicker section is
going to be more forgiving!

So I guess my question is, once again, dont thicker sections stall LATER?

thanks,
tf






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