Flying wing as cheap and simple option for basic fun flying.

[erkki67]

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

 

[Victor Bravo]

That's really interesting, and makes perfect sense when part of the wing's job is to have a reliable high pressure location as you do with a PG.

 

[erkki67]

Koen, what do you think about a paraglider style air intake for one or two impeller propulsion exhausts ?

 

[nestofdragons]

Koen, what do you think about a paraglider style air intake for one or two impeller propulsion exhausts ?

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.
https://www.amazon.nl/Ducted-Fan-Design-Propulsion-Long-Chord/dp/1517645700

 

[Sockmonkey]

For some sort of in-wing propulsion I think you would need to use fanwing type longitudinal blowers.

 

[erkki67]

UL-39 ALBI Carbon-composite two-seat

UL-39 ALBI Carbon-composite two-seat

www.skyleader.aero

 

[erkki67]

It’s just for their propulsion system

 

[henryk]

It’s just for their propulsion system

https://www.matec-conferences.org/articles/matecconf/pdf/2019/53/matecconf_easn2019_01027.pdf

=modyfied version=ALBI II... (160 kW !)

 

[Aerowerx]

For some sort of in-wing propulsion I think you would need to use fanwing type longitudinal blowers.

Doesn't that completely negate the "cheap and simple option" which the OP was looking for?

 

[Sockmonkey]

Doesn't that completely negate the "cheap and simple option" which the OP was looking for?

Indeed, but that ship sailed with the mention of in-wing propulsion.
Simple would be going with a half dozen little electric props and motors sticking out of the leading edge.
Using six means you can use the larger-scale RC props and motors.

 

[erkki67]

The idea was to keep Koen‘s contribution to a flying wing as clean as possible without any engines sticking out of it.

 

[nestofdragons]

Or ... you can go totally the other way. Here is a design by Panamarenko.

 

[Bill-Higdon]

Or ... you can go totally the other way. Here is a design by Panamarenko. View attachment 104717

 

[blane.c]

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

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.

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

 

[erkki67]

Or ... you can go totally the other way. Here is a design by Panamarenko. View attachment 104717

 

[Riggerrob]

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.

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

Holy thread drift Batman!
The Sportsman STOL conversion is especially popular with skydiving operations because it increases wing area by extending the leading edge 4 inches forward, The flap gap cover also improves climb performance. Finally, a single-engined Cessna with a Sportsman STOL kit still fits into a regular T-hangar.
OTOH you need to add the Wing X extensions to legally fly a Cessna 180 or 812 with 4 jumpers because the Wing X kit allows an increase in gross weight.

 

[nestofdragons]

You need to know that Panamarenko is a artist who makes just strange (technical) items. None of his creations ever flew.

But it was very weird to me to see that when NASA was experimenting with multi props on wings that this artist thought about it when he was young. He recently died of old age. The design must have been 40-50 years old.

 

[erkki67]

Koen, think about your wing with a sharknose at the intake, and youll have a clean wing with an elegant propulsion system

 

[erkki67]

The other solution is the wing layout of Sockmonkey, a bit less thick and with a single tractor engine.

 

[erkki67]

or the one of MikeW, which is flying!