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BARRETINA HYPER LITE "JAP"

BHL-JAP

Based on the plans of the original Barretina Hyper Lite, Jeremy Paxon, a German constructor, has made his own prototype "JAP".

This section includes technical data and photographs on the progress of the work.

BarretinaHyperLite proto "JAP"
Constructor: Germany
Surface: 25,03 m2
Flat span: 10,84
Flat AR: 4,70
Panels: 29
Anchors per rib: 4
Risers: 4
Calage: 45%
Extrados: 50 gr/m2
Ribs: 50 gr/m2
Lines: dyneema

This model follows strictly the plans of the original BHL except lines, which are new and improved. It is recommended to any BHL builder, use these new lines, instead of the previous.

Here the new set of lines (.xls) : JAP-Lines

Lines schema (.zip .dxf file) : Lines-schema

3D model (.zip .dxf file) :  3D-model


Photos 1-8: September 24th 2012, Photos 10-20: October 6th 2012, Photos 21-26: October 9th 2012, Photos 27-35: October 10th 2012,
Photos 36-38 12th October 2012, Photos 39-41 19th October 2012, Photo 42 21th October 2012, Photo 43,44,45 21th October 2012


jap1
1. Start of work
jap2
2. Several ribs cut.
jap3
3. Rib completed, with reinforcements
jap4
4. Anchor detail
jap5
5. Ribs, with characteristic sawtooth...
jap6
6. Foot with special guide to sewing lines
jap7
7. Line sewing
jap8
8. Brake lines
10
10: Leading edge reinforcement

11
11: Scale for Lines
12
12: Checking the length with a spring
13
13: Result
14
14: Nylon rods (will be replaced by white ones)
15
15: Break lines
16
16: Break lines finished
17
17: Triangle load test
18
18: Leading edges wing tips
19
19: All panels
20
20: All panels and some ribs
21
21: Extra light beneath the fabric to show the
sewing-lines and check-marks.
22
22: Moved from the kitchen to the living-room...
23
23: Because it grows...
24
24: First time outside
25
25: Gets bigger and bigger...
26
26: Testing the rods
27
27: Now even my living-room gets to small...
28
28: Seriously!
29
29: How to make break loops
30
30: Wing tip overview
31
31: Will need an elephant as a testpilot(i think i built a biplace...)
32
32: Symetrie check 1
33
33: Symetrie check 2
34
34: Still pretty small
35
35: Guess where i got the inspiration for the colors...?!
36
36: Wingtip-Loops
37
37: How to straighten curved plastic rods in an Oven.
80C for 1h fixed in a steel tube. Then cool them in the
tube for one more hour - result: straight!

38
38: Painted the Lab-Logo on the center panel
39
39: Sewed the nylon rods into the leading edge
40
40: Splicing
41
41: All lines finished
42
42. BHL JAP bag
43
43. October 21th 2012, first inflation: "It was just around
sunset,
there was 0 Wind, maybe 1-2 km/h not more..."

44
44. "The wing inflates perfectly, and rises over my head,
where i stoped it with a small break input.."

45
45. "Even in almost no wind the wing stayed over my head,
then i turned around and walked a few steps
and i could feel the lift of the wing,.."

46
46. Beautifull...
47
47. No bottom surface...
48
48. Laboratori logo in central panel ! :-)
49
49. Ready!


BHL JAP building:


Updated November 1th 2012
All photos and videos by Jeremy
 

LAB NOTE: Build a paraglider at home is a very complicated task (even simple skin), and requires many hours of work. Although from these pictures may seem easy, previous experience is required, and very inventive. As always remember that: The free flight implies risks that can only be known and they can be controled with a suitable formation on the part of a recognized school. Not test wings without knowing their functioning. The construction and test of experimental wings without certifying requires deep knowledge of what is being made.

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