Has anyone heard about that 1935 plane, known for taking off on extremely short distances ?
Thre are a few ideas here for us , like those leading edge slats
Look for Fieseler 156
The idea is to warp the profile when taking off to minimize needed power to take off
http://acversailles.free.fr/documentation/08~Documentation_Generale_M_Suire/Aerodynamique/Dispositifs_aerodynamiques/Karmann/Wing_leading_edge_slats.pdf
This is how the RC world does it 
https://www.darbrorc.co.uk/4-x-rc-robart-15-scale-40-degree-fowler-flaps---rb345-19390-p.asp
Interesting but difficult to implement. IMHO, implementing a flap (wing trailing edge) seems easier and less prone to jamming (weeds/algae for example) that would in turn create unwanted drag. The difficulty here is to avoid creating dirt traps.
Yep. But that is only for a few seconds. If I am not mistaking this plane can take off at 29 km/h…
