|
p1
p 2 of LIFT for October 2011
p3
p4 |
|
|
|
WPGA has announced incident-collection
project. Send incident reports to
Safety@WorldParaGlidingAssociation.org
See start of the Fatalities sub-project. Workers for various safety sub-projects are invited. |
| The Seedwings Sensor |
|
|
|
|
|
[quote="Avnav8r"] Hey, A lot of people these days think that paragliders are hang gliders because the pilot is hanging beneath all those lines. ... John Stokes[/quote] John, Those people are correct. Paragliders are a proper subset of hang gliders. For the purposes of this forum, that paraglider subset is set aside while the forum concentrates on hang gliders of two sorts: 1. The sort that has one short tether to the payload/pilot and short enough that makes easy for the pilot to grab the airframed wing for control. This is historically a paraglider hang glider, like the Falcon 3; in the sport we abbreviate this to a hang glider. The 1908 single-tether behind cable-stayed triangle control frame in Breslau was in this category; we still use that TCF much today for this category. 2. The sort that has [b] no short tether [/b] at all, but where the pilot hangs bodily to the airframe of the wing. Otto Lilienthal, Chanute, Pilcher, Jensen VJ-11 and 23, Icarus V, Batso, Hang Loose, etc. Forearm set, armpit set, seat set, bar sit, monkey ride, etc. A paraglider is a gliding kite where kite has three essential parts: resistive set, tether set, and wing set. A paraglider need not be with a live payload. For brevity and distinction within sport free-flight gliding, it is a fuzzy custom to just call the paraglider hang gliders as "paragliders"; and to call non-paraglider hang gliders as "hang gliders." But that brevity does not change the centuries-rich understanding of what a hang glider is-- which encloses [b]paragliders and several types of non-paragliders. [/b] The public has strong right and correctness to see paraglider hang gliders and sport-frame-controlled hang gliders as "hang gliders." When we in the sport analyze [b]our needs[/b] of design and safety and operation, we have a task of discerning from news what type of hang glider is being reported as the distinction sets us into some wide differences of control dynamics, construction, and handling dynamics, etc. Each particular device used by a particular pilot has its specific mechanical reality and dynamics. Broadly the dynamics and design has moved hang gliding into two broad branches; paragliding is a proper subset of hang gliding, but in the sport we see that we have paragliding hang gliding being referred to in brevity as just paragliding; and non-paragliding hang gliding as just hang gliding. But the usage is with much fuzzy overlap and for the good reason that paragliding is a proper subset of hang gliding. Whew! Did you get this far? :owned: :) Posted Oct. 8, 2011 in forum. |
EnglishParagliding EtymologyFrom “paraglider”. PronunciationNounparagliding (uncountable)
Hypernyms
|
| http://www.gizmag.com/first-successful-manned-electric-helicopter-flight/19716/ |
|
|
|
FLPHG30384 by REC |
| Peel Glider Boat had large service as a kite towed aloft by water power boat and then released for gliding and then landing on the water. Biplane. Not a hang glider. Upon release from tether: glider. |
|
One who starts his site with the following selection from Otto just might be full of surprises: visit AeroExperiments.org
============== Otto Lilienthal: |
Yippippi
2011 "Pucker factor 10!"
|
|
There are at least four movements in history that brought forward the
sport of paragliding. Readers will be shorted if an oversimplification
results in profound holes. The article is not to be a hype brochure set to
move sales or some narrow POV. Not at the moment to be limited by the
remark, but just to get started working with other editors on the matter,
I bring on the table: :::: 1. Woglom coined "parakite" in his "Kite like aeroplane" patent. He also wrote and had published a classic book that received wide reading by aviation founders of the time. Parakites. A treatise on the making and flying of tailless kites for scientific purposes and for recreation. By Gilbert Totten Woglom. Published 1896 by G. P. Putnam's sons in New York [etc.]. Written in English. Full reading is easily available online. http://openlibrary.org/books/OL6980132M/Parakites Woglom taught that his device was not limited to just the specifics he taught. He was contemporary with a society that had already for a century been aware that gliders were successfully obtained by letting a kite's anchor freely fall through the air, even placing the mooring as weights hung from the wing part. Leonardo da Vinci who is so honored by 2011 paragliding sport participants in their "Leonardo" tracking program had parachute and also saw gliding. The parachute had long history and the gliding of such devices was tried with some success before Woglom; see Cayley medallion of late 1700s and then follow from there. This realm brought advances in parachute, parakite, aeroplane. Contemporary with Woglom is a strong William Beeson to be included in any seeing of the roots of governable gliding wings arriving from letting the wing be falling free with the tug of gravity on the masses involved in devices. The two brothers Lilienthal worked with kites to get their gliders; they knew of parachutes; Otto Lilienthal settle to put the mass of himself coupled well but still as pendulum mostly from the kite's wing; hang glider. ~~~~ :::: 2. Francis M. Rogallo's work in the 1940s, his patents, his products ..through 1950s , his demonstrations in late 1950s of a man-doll hanging from suspension lines in gliding parachute using his Rogallo wing canopy for a host of leaders and engineers to see formed a furthering flow of evolution for paragliding. The NASA body of engineers that affected the world at that time easily had the Leonardo and Woglom and Rogallo flows of parachute, parakite, aeroplane, glider, gliding parachute at the late 1950s as Sputnik impetus sparked world around notice of paraglider and the gliding of paraglider. In that mix looking over Rogallo shoulders in some same rooms was David Barish. Paraglider was focus of several NASA related programs. The programs have direct evolutionary flows into paragliding activity. A European note is Tony Prentice who in 1960 had paraglider with ropes to his stiffened NASA parawing. A USA note is Barry Hill Palmer who took the wing of the paraglider and just grabbed it in seven versions of his paraglider hang glider; he noted that he was fully aware of hanging his mass as NASA hung by tether masses, but Barry rushed to just foot launch by grabbing the paraglider's wing and dispensing with the tethers; so he did the Otto Lilienthal thing. An Australian note is Mike Burns who kept the hanging principle as he hung the kite-glider's pilots and passengers from a single point from the NASA-like paraglider's wing form. ~~~~ ::::3. Jalbert branch: Kiteman, kytoon man, Barrage-balloon man, governable parachute man, helped to protect coasts of enemy aircraft with his kytoons, Domina Jalbert invented the ram-air airfoil wing affecting parachute gliding devices. He early had gliding-kiting wings on large kytoons as seen in his patents. His flow to paragliding is significant and highly noteworthy. Evolutes of his parafoil wing supply to the current most-used choice for paraglider in today's paragliding; his wing in paragliding has more users than the Rogallo parawing in sport paragliding of today. But Jalbert does not own paragliding. Rogallo does not own paragliding. Barish (see below) does not own paragliding. Woglom does not own paragliding. Beeson does not own paragliding. Etc. ~~~~ :::: 4.. David Barish worked on parachute and similar drag devices. He came up with the non-Jalbert and the non-Rogallo single-surface partially second surface wing that he patented. His termed his invention a "Glide wing" for the patent. Barish knew Rogallo personally. Barish knew the single-surface with partial second surface "arcuate leading edge" could be used with fixed or moving resist on the tethers to the glide wing. Mid 1960s. Before him were sport paragliders in use. Yet his hill-off gliding of his new type of parachute wing brought high focus on gliding of parachutes, a topic that was firmly already in the Jalbert flow, in Rogallo flow, in military gliding parawing flow. Barish added to extant gliding parachute flows; he added his patented wing and bold hill-off gliding. He had higher public presence than did Barry Hill Palmer. But in Australia Mike Burns had in 1962-3 firm presence in the public water recreation world there. The interest in the Barish wing waned in recreation as the NASA paraglider with Rogallo parawing and the Jalbert parafoil filled the answer of recreational hang gliding play together with Chanute-like and monoplane and Dunne hang gliders. The paraglider and the Rogallo wing parawing glider remained being used much more than the Barish single-surface partial second surface glide wing as the 1970s explosion of free-flight recreation and sport occurred. All then were forms of hang gliding and gliding parachutes; gliding the paraglider became paragliding, a branch of hang gliding. The branch paragliding grew, but the full body trunk continued to grow; a tree of branches. The tree: gliding oneself to be brother and sister with birds. Barish wing is seeing a tiny comeback in the prototypes of 2011's XXLite by OZONE, and the Barretina Hyper Lite by Pere Casellas. Mostly Barish's bold hill-offing physical exploration coupled with his professional status in parachute and drag device industry gave him a remembrance and flow to today's paragliding. But he is one of several flows. ~~~~ :::: 5. The whole of toy and sport kiting and modelers flow is noteworthy source of impact on paragliding. Following the paraglider toys that influenced the world and influenced full-on human-body involvement has noteworthy record. ~~~~ How will the editors of the article paragliding represent the roots of paragliding without doing injury to paragliding or to the other branches of hang gliding free-flight? The version up today of "natural progression" is a narrow POV that might enclose hype in connotation and rebuff of actual noteworthy roots. Care is proposed to stumble. As paragliding is a branch or sector of hang gliding, such branch only has its merits and demerits whereas comparisons will be difficult and contentious. For encyclopedic purpose, comparison and hidden POV hype is not necessary. It is proposed that it will be enough to give good source for the steps taken in the historical flows to bring on historical paragliding in each of the eras of paragliding including, of course the contemporary era which continues to have changes. WP is not a crystalball and so speculation does not have much play in WP, I surmise; so it is not for the article to get into speculative futurism and prediction. Jalbert came from kites and parachutes. Rogallo came from kites and paragliders. Barish came from wings, parachutes, drag devices. Sportsmen Prentice in Europe spawned his paraglider from the NASA flow, as did Australian Mike Burns, and USA Barry Hill Palmer. Parakite Woglom came from kites with awareness of aeroplane. Paragliding for sport came from the gliding kites-gliding parachutes of Jalbert, Rogallo, Barish, and all carried the awareness of the hang gliding of the paramount achievement in gliding of Otto Lilienthal. Hang gliding's branch or sector paragliding continues to have changes in its sport's expression, even up to the very present moment as top-end experimenters are exploring stiffening of various sorts in the paraglider's wings, in the tether structure, in escape-rescue matters, in launching matters, in flight-termination matters; the sport has a character of growth in many of its aspects. That is, the article would do well to place paragliding in the aviation world with clear statements. Paragliding in sport is NOT a "natural progression" of hang gliding, but is directly a form of hang gliding among several forms of hang gliding; same statement has noteworthy validity for parachuting and kiting: paragliding is a branch of parachuting, a branch that has high focus on the gliding of the parachute, even the soaring fo the parachute ...with designer choices that bring on the gliding part to the front, this fully illustrated in the big flows of Rogallo, Jalbert, and Barish. Same for kiting: paragliding uses the machine kite with focus on the gliding of the machine kite; the aviation literature is full of the recognition of the play of kite; the 2011 sport paraglider person is the mooring of the kite while he or she moves about on the ground...yes moving, moving around back and forth, hopping, leaping, running, minor free-kiting and then continues that movement of mooring to use up potential energy to effect continued kiting with net glide through the air. This kiting was in the awareness of Cayley, Lilienthal, Beeson, Woglom, Wight Brothers, Jalbert, Rogallo, Barish, Prentice, Palmer, Burns, Miller in his book Without Visible Means of Support, etc. One must not let a narrow point of view of a 2011 own the rich root and history of paragliding by neglect of the roots and noteworthy facts. The patents support that the paraglider of sport paragliding is a gliding parachute, a kite system with falling anchor, a glider, an aircraft type, etc. No secrets and rich noteworthy history. How will the editors of article Paragliding bring in the full colors of the roots of the sport? Shorting the matter to something that is untenable will short the readers. It is worth working for a consensus that brings out the worthy foundations of sport paragliding. And give solid references for each significant step, so readers may follow their interests. Hide nothing that is noteworthy and verifiable of significance. The tree of personal free-flight holds a branch paragliding; that tree feeds the branch; keep the branch with its nutrient source. There is no need for commercial narrow point of view that cuts the branch off the tree. ~~~~ |
|
|
|
Paragliding is the activity of gliding a kite; then such
kite is a paraglider. There is still the kite, it is just that the resistive set or anchor is moving by force of gravity freely through a fluid; such attraction on the payload/anchor/resistive set couples with the wing set via a tether set. A gliding kite is still a kite. Some kites not set in glide are not paragliders. |
| The parachute manual: a technical treatise on aerodynamic decelerators By Dan Poynter |
| Do not over tighten. http://www.cmcrescue.com/product.php?dept_id=1061 |
|
|
