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by lightandfrost
Wed Sep 11, 2019 2:15 pm
Forum: Hydrofoil
Topic: Stress failure around a hydofoil kiteboards' Center of Gravity
Replies: 1
Views: 162

Stress failure around a hydofoil kiteboards' Center of Gravity

A hydrofoil kite boards' center of gravity(CofG) is a point normally forward of the mast between the front foot strap or preferred forward foot position and the point of mast installation. Riders pivot around this CofG when riding by changes in fore and aft foot pressure. The CofG position is a func...
by lightandfrost
Sat Jun 01, 2019 6:44 am
Forum: Foil Kites
Topic: Pansh Aurora II 8 Meter Line Plans
Replies: 9
Views: 698

Re: Pansh Aurora II 8 Meter Line Plans

All L&F know about the Pansh line is the price AND when customers told Pansh the kite did not fly correctly the company replaced the kite. No where in our original thread are there any comments on the quality or performance of this product. However there are many others using the Pansh line in our a...
by lightandfrost
Fri May 31, 2019 7:51 am
Forum: Foil Kites
Topic: Pansh Aurora II 8 Meter Line Plans
Replies: 9
Views: 698

Pansh Aurora II 8 Meter Line Plans

Pansh Aurora II 8 Meter Line Plans Light and Frost(L&F) has obtained two(2) Pansh 8 meter Aurora II Kites. Immediately upon receipt of these kites L&F attempted to obtain a detailed line plan for the kite. All that was available was a drawing of the line architecture. Exact lengths of these lines we...
by lightandfrost
Thu Jan 24, 2019 4:05 am
Forum: Foil Kites
Topic: Inherent Stability of the Ozone Hyperlink
Replies: 2
Views: 733

Inherent Stability of the Ozone Hyperlink

My friend was riding a Ozone 12 meter Hyperlink V1 kite near some other kite surfers. One of the other riders looked around saw my friend floating in the water face down unconscious breathing H20, however the Ozone Kite was so stable that it was gently flying uncontrolled overhead the drowning rider...
by lightandfrost
Sat Jan 19, 2019 2:49 am
Forum: Gear Builders
Topic: Flying Wing Commentary
Replies: 6
Views: 1355

Re: Flying Wing Commentary

To Horst Sergio Your work is held in high regard here. Reference stiffness. The smoothest wings L&f ever made had some flex much like standard aviation wings. Unfortunately a stress crack began to form along the major flex point. These wings were intentionally constructed to have this flex and were ...
by lightandfrost
Fri Jan 18, 2019 4:01 am
Forum: Kitesurfing
Topic: Cloud Kites A Caution
Replies: 28
Views: 3104

Re: Cloud Kites A Caution

To clarify some points. 1. The flight performance of the Cloud series is excellent. Buy one and test it yourself. 2. The kites were obtained outside the USA. 3. A request for spare parts was sent to the company. 4. The bladder valves in these kites in our possession delaminated. Also bladders explod...
by lightandfrost
Fri Jan 18, 2019 3:01 am
Forum: Gear Builders
Topic: Flying Wing Commentary
Replies: 6
Views: 1355

Re: Flying Wing Commentary

L&f have completed step one in a flying wing project. A basic flying wing shape has been constructed without the reflex or elevons. This wing with standard stabilizer will be tuned and tested for functionality for a number of hours. If the wing is suitable the reflex(elevons) will be added having 1/...
by lightandfrost
Thu Jan 17, 2019 7:12 am
Forum: Kitesurfing
Topic: Cloud Kites A Caution
Replies: 28
Views: 3104

Cloud Kites A Caution

If you are considering purchasing a Cloud kite we provide the following caution. First there is nothing wrong with the design. These kites fly fine. However this kite requires high pressure to function properly. The designers own videos suggest pumping the kite with a hand pump until you can barely ...
by lightandfrost
Tue Jan 01, 2019 2:52 am
Forum: Gear Builders
Topic: Beaver Tail Alternatives
Replies: 2
Views: 761

Beaver Tail Alternatives

Light and Frost(L&f) has been studying and testing the addition of a beaver tail to the hydrofoil fuselage. It was decided to add the beaver tail as a fuselage extension with a zero(0) angle of attack rather then replace the stabilizer with a beaver tail. These board/mast/hydrofoil mixes without bea...
by lightandfrost
Sat Oct 06, 2018 1:59 pm
Forum: Gear Builders
Topic: Flying Wing Commentary
Replies: 6
Views: 1355

Flying Wing Commentary

Removing a hydrofoils stabilizer and riding the stock wing ie riding stabless increases the control requirements of the rider as the wing is unstable since nothing counters the wings center of pressure as it moves around the center of gravity. Furthermore there will be limits to the wings ability to...

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