With the help of
my friend Carles Torres from STRIP-AIR,
we conducted some initial experiments in full scale. Carles cut and modified in his workshop, a conventional wing to make it a single surface. To everyone's surprise..., this wing
flies perfectly! And only used 4 anchors per rib. The first glides were made in the school ramp
in Organyà
(Catalan Pyrenees).
Other small runs and glides in my training area in
Teià. The brake pressure is low. The ease of inflation is amazing, super easy!,
even without wind. The inflation with wind is "explosive", and must be undertaken with caution.
Fig 1. The STRIP-AIR simple surface wing tested in Ocata beach
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Fig 2. Training zone in Teià. Yes, still the paradise!
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Based on previous experience during
the last weeks I worked in modifications on LEparagliding
program to allow design for simple paraglider surface. The most difficult thing has been
get the proper rotations in space of the load triangles, to be
perfectly aligned with
the direction of the lines. Finally achieved, and the plans of a model identical in geometry to
the Barretina
but in simple surface, is included here.
The first
prototype of BarretinaHyperlite, is currently being built by
my friends at Adrenaline
Paragliders headquarters
in
Yecla (south east of Spain).
Is very close to complete. The glider
will be renamed and decorated with the colors of
Adrenaline, but it is a
real BarretinaHyperLite! The job of tuning
the Adrenaline prototype,
will enable us adjust
the better trim speed. It is expected a new set of
only three risers per side. The great work,
the money,
and time, invested in this prototype by Adrenaline
Paragliders, are being helpful to the project BarretinaHyperLite
and the overall development
of the concept of simple surface paragliders. The simple surface glider,
with the plans freely
available in public domain for study, and a
real model soon in flight...
Stability and collapse resistance of the simple skin paragliders
certainly looks pretty small, acording
previous experiences. Then,
the advantages would be the light weight/volume and ease of
construction.
Keep in mind that this is an experimental prototype,
currently under development. The reactions of this wing
can be potentially dangerous,
and is (actually) not certified.
Specs:
Surface: 25,03 m2
Flat span:
10,84
Flat AR: 4,70
Panels: 29
Anchors
per rib: 4
Risers:
4 and 3 (in study)
Extrados:
Skytex 27 gr/m2
Ribs:
Skytex 40 gr/m2 hard fiinish
Lines:
dyneema
2.
BarretinaHyperLite plans in PNG format
3. BarretinaHyperLite Plans DXF
Donwload
the complete plans in DXF:
4. The ADRENALINE prototype
The prototype build by Adrenaline Paragliders
http://www.adrenaline.com.es
Some initial tests at Besos River (Barcelona) 17 february 2012...
