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laboratori d'envol
FREE FLIGHT WINGS DESIGN STUDIO

BHL2-16 evo 2021
BHL2-16 evo updated to 2021. Includes all parts in A4 format to print.

WARNING!: Fixed an unintentionally bug added in all previous LEparagliding "Z" versions: All VH-ribs between ribs "0" and "1" had incorrect geometry (!) Due to not putting the negative sign at the angles "beta" and " rot_z " on the rib number " 0 " (the symmetrical rib on the "1"). Affects exclusively the VH-straps located inside the central cell. Fixed already in new version 3.16+ I found yet another error in defining type 1 horizontal straps. Their width is TWICE multiplied by the overall scale factor of the wing. In this version, this is not modified, to be able to more easily update the wings calculated with 3.16.

BHL5-33
BHL5-33 "Bi" new size 33 m2, span 13.66 m


GG Hang glider
2021-11-02 GG Hang Glider almost complete!

leparagliding-3.16 compiled for MAC OSX! Python graphical interface updated to 3.16!

Project gnuA6 now in sizes 22, 24, 26, 33 m2

gnuC 2021
gnuC (2021 version). 60 cells, aspect ratio 6.25

gnuLAB2.5
October 2021, prototype gnuLAB2.5 by Juan David Ramírez Sepúlveda (Medellín, Colombia)

BHL5-TA
2021-10-08 The prototype BHL5-TA is now with me in Teià, at the Laboratory :),
to study the details and do some experiments. Photos: Pere with the BHL5-TA 16 m2 at Premià de Mar beach.

BHL5 Chengdu
BHL5-24 成都 "Chengdu" in flight, by Zhu Guoqiang, Chengdu (Sichuan, China).
Other projects by the same constructor BHL2-19 and gnuA5-31.

BHL2-19 Chengdu
BHL2-19
成都 "Chengdu", by Zhu Guoqiang.

Stork
Stork, high performance single skin paraglider AR=8.0

BHL5
BHL5 "Basque Country". Test at the beach with laminar wind, August 24 2021

m
Airfoils 3D rotations in LEparagliding. Study of geometric transformations to rotate airfoils in three axes.
This improvement runs now in lep >= 3.16

update
GG Hang Glider Update 2021-08-08: "Last Monday I moved the project to the farm of the aforementioned friend and on Thursday afternoon I was able to advance a little, (see attached power point) slide the sail over the leading edges and also make the keel pocket. It begins to encourage me to continue to be able to see the shape of the Rogallo.
In two more weeks - if I can- I return to the farm to continue to cut and assemble all the 3/32" SS tensioning cables."

Envol
The art and science of hang gliding design


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Updated
November 28, 2021
using xubuntu-18.04 GNU/Linux