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South African gull wing concept
Posted: Wed Jul 29, 2009 5:28 pm
by kloot piloot
See invite below. Joachim has been playing with concept for more than 20 years already. Is it getting there now ?
Re: South African gull wing concept
Posted: Wed Jul 29, 2009 5:55 pm
by Rudix
kloot piloot wrote:See invite below. Joachim has been playing with concept for more than 20 years already. Is it getting there now ?
Interesting!
Joachim Huyssen?
Small world
I remember when he first started with this project....
Re: South African gull wing concept
Posted: Wed Jul 29, 2009 6:45 pm
by RV4ker (RIP)
Eish - That nose wheel....
looks interesting. Can't make it. Wonder if there will be website? Any idea if it flown?
Re: South African gull wing concept
Posted: Wed Jul 29, 2009 8:19 pm
by kloot piloot
Yes, Joachim Huyssens. The development started off with the Exulans wing (scientific name for Gull). It comes down to the unique concept where you create a "swept back" wing platform of the outer leading edge. I remember the test flight of the concept in early 1990's. Unfortunately not succesfull due to VNE and overstressing after balloon drop.
The concept is very sensible. On a trike, or delta wing, your outer leading edges and that part of the wing does relatively little to create lift. The tips play more a role on take-off and landing. By being able to sweep the tips back in flight, they become more productive with less drag.
I will attend. Definitely !
Re: South African gull wing concept
Posted: Wed Jul 29, 2009 8:23 pm
by kloot piloot
RV4ker, no, it is in proto-type stage.
Google "exulans". Info very scarse (secretive). Tells me they are onto something. Lots of patent rights taken and pending I believe. Mind you, this development started 20 years ago at the University Pta as part of a masters for Joachim.
Re: South African gull wing concept
Posted: Wed Jul 29, 2009 8:27 pm
by Sukkelaar
Where will this be held?
Regards
Sukkelaar
Re: South African gull wing concept
Posted: Wed Jul 29, 2009 8:29 pm
by Rudix
kloot piloot wrote:Yes, Joachim Huyssens. The development started off with the Exulans wing (scientific name for Gull). It comes down to the unique concept where you create a "swept back" wing platform of the outer leading edge. I remember the test flight of the concept in early 1990's. Unfortunately not succesfull due to VNE and overstressing after balloon drop.
The concept is very sensible. On a trike, or delta wing, your outer leading edges and that part of the wing does relatively little to create lift. The tips play more a role on take-off and landing. By being able to sweep the tips back in flight, they become more productive with less drag.
I will attend. Definitely !
I also remember the balloon drop and the subsequent parachute landing
Have some photos somewhere. I also have a video of the flight and some other material.
Will make a plan to attend....
Re: South African gull wing concept
Posted: Wed Jul 29, 2009 9:02 pm
by kloot piloot
Sukkelaar,
It is at the TUKS Campus as far as I know.
RSVP or enquire at
aero@up.ac.za
Re: South African gull wing concept
Posted: Thu Jul 30, 2009 7:23 am
by Sukkelaar
Kloot
Thanks, will do
regards
Sukkelaar