erkki67
Well-Known Member

Sharknose airfoil … Aerodynamic breakthrough?
The sharknose airfoil and its particular leading edge… What is the Sharknose? What are its effects? Watch out ! The sharknose is a specific foil shape …
If you know a bit about ducted fans, you will understand why this is a bad idea. The intake of a ducted fan needs to be large in area than the area of the prop. This book by Marc De Piolenc is a must read if interested in ducted fans. It helps to prevent the common mistakes in design.Koen, what do you think about a paraglider style air intake for one or two impeller propulsion exhausts ?
It’s just for their propulsion system
Doesn't that completely negate the "cheap and simple option" which the OP was looking for?For some sort of in-wing propulsion I think you would need to use fanwing type longitudinal blowers.
Indeed, but that ship sailed with the mention of in-wing propulsion.Doesn't that completely negate the "cheap and simple option" which the OP was looking for?
Or ... you can go totally the other way. Here is a design by Panamarenko. View attachment 104717
Isn't sharknose just a new name for leading edge cuff or STOL cuff? Perhaps sharknose is easier to advertise and promote than leading edge cuff or STOL cuff? This profile has had all manner of application over the past century several were designed for the Cessna wing for example. A friend had a Robertson stall kit on his 180 but used a Sportsman cuff instead of the Robertson, not strictly kosher but it worked well.![]()
Sharknose airfoil … Aerodynamic breakthrough?
The sharknose airfoil and its particular leading edge… What is the Sharknose? What are its effects? Watch out ! The sharknose is a specific foil shape …www.google.fr
Or ... you can go totally the other way. Here is a design by Panamarenko. View attachment 104717
Holy thread drift Batman!Isn't sharknose just a new name for leading edge cuff or STOL cuff? Perhaps sharknose is easier to advertise and promote than leading edge cuff or STOL cuff? This profile has had all manner of application over the past century several were designed for the Cessna wing for example. A friend had a Robertson stall kit on his 180 but used a Sportsman cuff instead of the Robertson, not strictly kosher but it worked well.
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Sportsman STOL
The Sportsman STOL wing cuff is a state of the art modification originally designed by Lockheed Skunkworks to increase light plane utility and safety by increasing the wings efficiency and resistance to stalls and spins. The Sportsman STOL is not just a lip on the bottom, but is a re-engineered...www.steneaviation.com
You need to know that Panamarenko is a artist who makes just strange (technical) items. None of his creations ever flew.