A light hang glider that folds at 1.7 m to carry
inside the car, train, plane, or the cable car ...
(Click on the thumbnails and download the hight resolution PDF
1. Index and general data
2. Airfoil geometrical analysis
4. Frame details. Nose and aft keel
4.2 Frame details. Crossbar - leading
edge. Telescopical tubes union.
4.3 Frame details. Heart. A-frame.
5. Parts details
6. Parts list
7. Sail geometry
8.1 Sail details (1)
8.2 Sail details (2)
9. Sail colors design
10. Transportation bags
11. 3D model
12. Luff lines
13. Notes and advices
Note 2020-09-22 How to add the luff lines
ATTENTION. This model has not yet been built or put into flight. These
drawings are intended only as a compilation of the
technology of the "Standard" hang gliders wings, which still
remains very simple, requiring a broad knowledge. I think that these
drawings will be of great interest to researchers and curious of the
history of free flight.
To make this HG fligth require four basic previous operations:
1) Static equilibrium centering:
Move experimentally back and forth the position of the crossbar to find
the center of gravity. This operation can also be done by theoretical
calculation. Maybe make it later.
2) Aerodynamic centering:
Locate the hang point on the keel for a suitable speed flight and
maximum performance. Must
realized experimentally. In addition, the A-frame should be rotated
forward or backwards to ensure that the control bar is a comfortable
distance for a supine pilot. In this project has turned 4º the
3) Structural calculation of the entire set and determination of the
safety coefficient. Maybe make it later.
4) Experimental load tests.
Luff lines: The luff lines prevent deflations on the sail. If any
deflation occurs, the trailing edge remains high, creating a reflex
profile. They also facilitate the departure of the dives. Do not fly
without luff lines installed.
APOLOGIES: It's possible that there are small errors not detected in
this first version, or incorrect linguistic details that hinder
understanding (English is not my usual language, but I try to do my
projects in this language to broaden the spectrum of readers). If you
find errors (technical or language) can send corrections to my e-mail
and will be modified in the next version.
It must be really comfortable the HG transported in the trunk of the
car or in the back seat ... Or boarding the train or the plane carrying
a simulated sky package... And you will see the face that bring our
paragliders colleagues when you begin to mount tubes with the
telescopic "click" system...
Theory of the Standard HG:
IMPORTANT: If your
objective is only to build a hang glider and then flying..., forget
this page, go
to a certified free flight school, learn with experienced
instructors, and purchase certified new or used equipment, much more
cheap and safe.
CAUTION: The theory and practice of Hang Gliding only be learned at a
flight school with qualified instructors.
Do not try to fly without such prior knowledge.
not directly based on
SPS2008, but taking some infos, a
group of university students from Estonia, have built a standard HG
with aluminum frame and LDPE
The wing is 95 degrees nose angle,
hang point ahead, and the trailing edge
shape different from the SPS. A new polyester sail is under