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Re: P2SPG and P2SHG Partial Second Surface

Postby Bob Kuczewski » Wed Jun 06, 2012 1:54 pm

JoeF wrote:1. My firm vote is that canopy gliding kites are usually high-aspect ratio wings that do easily wrap and collapse when facing normal windfield helicities; when such occurs within a zone where there is not time and altitude to calmly use a parachute, then injury and disaster occurs far too often. http://www.cometclones.com collects ONLY A SUB-FULL collection of the fatalities since 2002, that is, there is evidence that counts are missed; the incomplete total of lost brothers and sisters is over 900 now since 2002.

I'm sorry to say that your link to http://www.cometclones.com currently reports this:

Forbidden
You don't have permission to access / on this server.


We seem to have lost the collection of information that Rick had been accumulating at that site. I hope this is only temporary, but if not, I might be willing to host that information if Rick can provide it in a suitable format.

JoeF wrote:Any hesitation on the part of the airframed hang glider community that uses mostly the stiffened airframe and a short hang line with pilot grasping the airframe for control of pilot mass position, --to form its own focused org like, say, US Hawks, will delay a rich coming growing of airframed hang gliding as advanced new airframed hang glider designs surface.

Thanks Joe.      :thumbup:

JoeF wrote:Canopy parachutes for humans are safer when they are not high aspect ratio gliders; to build high participation for sport and hobby in the use of high aspect ratio canopies tethered by long lines is asking for the constant flow of injuries and deaths that will occur from the collapses and wraps from meshing with normal windfield helicities within the wide zone above ground roughly studied under the name of PDMC

I think the PDMC work of Rick Masters was certainly controversial to the paraglider crowd, but the recent death at Torrey Pines was likely due to a collapse too low for recovery ... exactly as Rick has been preaching with his PDMC.

JoeF wrote:En mass, all airframers might consider forming new separate organizations around the world; coordinate with third-party insurers if wanted about the big change. Let the extant canopy-focus orgs be honest enough to alter their names to reflect the exodus; to help the exodus, the new HG orgs (though having mixed feelings) might strongly set bylaws to focus on being without unairframed long-multiple-tethered canopy gliding kites while being with and for framed hang gliders where pilot holds the airframe for control and hangs by tethers short enough to allow such airframe control. It is time to see that there is a bifurcation needing firming in policy. The culture of handling the launch environment is starkly different in the two branches; there will be very much more launch area opportunities for the airframers than for the canopy gliding kites.

I do believe that USHPA will become a primarily paragliding organization in the near future. The latest issue of USHPA Magazine (June 2012) shows the ratings issued in February:

    23 Hang Gliding Ratings
    77 Paragliding Ratings


That's more than 3 new PG ratings for each new HG rating. I am not against paragliding (I fly them myself), but all those PG pilots will tend to elect PG Directors and those PG Directors will tend to vote for PG issues. Just recently, USHPA tried to pass a rule that no USHPA Chapters could be hang gliding only clubs. I challenged that rule regarding the Torrey Hawks, and our Chapter status was renewed for 2012. But the handwriting is on the wall at USHPA, and if hang gliding wants to have an organization to defend our sport, we're going to need to find one. With your help and support, I am hoping the US Hawks will take on that role.
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Re: P2SPG and P2SHG Partial Second Surface

Postby JoeF » Mon Jul 16, 2012 4:02 pm

BatLite 1.8 tested at altitude Simple Surface captive-canopy gliding kite.

:arrow: :arrow: http://www.adrenaline.com.es/Adrenaline ... ngles.html
BatLite  http://vimeo.com/45830391 1er vuelo de altura del BATLITE 1.8 de ADRENALINE PARAGLIDERS BatLite 1.8 ( = Adrenaline Paragliders' version of the simple surface BarretinaHyperLite), flying high! July 2012.
:!: :arrow: :arrow: Video... click image:
Image
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Re: P2SPG and P2SHG Partial Second Surface

Postby Rick Masters » Tue Jul 24, 2012 8:03 pm

Bob, I simply ran out of money and closed my Mythology of the Airframe web site.
No paraglider pilots ever contributed to its upkeep.
They don't want to hear the truth.
That's very important to them.

No people who had experienced tragic loss contributed.
It was too late.
I fully understand this.

A few hang glider pilots did help, and I appreciate that.
They understood that it was really, really important.
But when only a handful realize this, it doesn't matter.

And a green power paraglider pilot who had never experienced freeflight contributed an impressively large amount when he realized that what he was getting into was a whole hell of a lot more dangerous than he had been told.
Like many others, he thanked me for saving his life.
I feel sad that this limited amount of funding couldn't keep the site going.

A lot of other people thanked me for saving their lives.
But they didn't help with the expenses.
Life is cheap.
Paragliding makes this clear.

I wish I had some skin in the game but I stopped flying in 1987.
I've given all I can.
It wasn't enough.
Paragliding will destroy hang gliding.
You guys f***ed YOURSELVES.
And now you have been f***ed by the people you turned your sport over to.
It was the greatest sport that had ever been created by man.
I firmly believe that.
It's too bad that most of you don't get it.
Many of you helped engineer the entire debacle.
And my opinion of most of you freeflight pilots these days is pretty low.
The pilots I flew with in the 80's would never have allowed this to pass.
When you hang glider pilots gave away negative loading to welcome in the paraglider, you sacrificed every gain we've fought for since the 1970s.
HOW COULD YOU DO THAT????
That was stupid and unforgivable.
You threw away your sport.
You need to fight to live.
It's Darwinian.
Don't ou understand?
It's not like you don't deserve what's coming.
You have my condolences.
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Re: P2SPG and P2SHG Partial Second Surface

Postby JoeF » Tue Jul 24, 2012 10:02 pm

Proceedings of the International conference on aerial navigation, held in Chicago, August 1, 2, 3 and 4, 1893
All rigid framed devices mentioned in that conference.

Then we see the following in 1965:
On the Discovery and Research of the Para-Foil

Abstract:
At the International Conference on Aerial Navigation in 1893 Professor Zahm of the University of Notre Dame presented the impressive results of his experimental and analytical work on the campus "with a variety of models, for the most part, launched freely in space without propellers". We have recently, quite by accident, returned to studying gliding craft and kites. The wings which Professor Zahm studied in those early days were rigid, as have been all of the airfoils of aviation even down to this present day. The airfoils and wings which we have been studying, however, are, as incredible as it may seem, completely non-rigid.
PUBLICATION DATE: Nov 1965
AUTHORS: NICOLAIDES, JOHN D.
LOCATION/DAN: GACIA/PA31306 (For Internal Use)
SPONSORING AGENCY NAME: ROME AIR CENTER, GRIFFIS AIR FORCE BASE, NY
PERFORMING/PUBLISHING AGENCY NAME: UNIVERSITY OF NOTRE DAME, DEPARTMENT OF AERO-SPACE ENGINEERING, NOTRE DAME, IN
DOCUMENT NO.: RAC-65-1946
[from Weapon Systems Technology Information Analysis Center]
Full proceedings and neat papers within for the 1893 conference: HERE :!:

Nicolaides went deeply in the study of the canopy wing, much of such with powered parafoiling in focus. The US government in one way or another spent huge amount of funds over the canopy gliding wing, but not with sport canopy paragliding in mind with high-aspect ratio wings flying near ground with bodies dangling waiting for the inevitable turbulent wraps and impacts. Path to some of the Nicolaides papers: HERE

Airframed hang gliding with wings having shape keepers and good negative load performance will continue to form recreational and sport satisfactions; will such sector concentrate on itself to bring about the wings that are waiting to be sculpted for a panorama of niche flight-play realms?

(From page at Notre Dame) In 1893, 10 years before the Wright brothers’ first flight, Notre Dame engineering professor Albert Zahm organized the first International Aeronautic Congress in Chicago. Based upon experiments on campus, he presented a paper that proposed the first modern method for launching airplanes and manually controlling them in flight by using rotating wing parts to balance the aircraft laterally and a double tail to control pitching and side-to-side movement. Quote source: http://nd.edu/about/indicators-of-excel ... ilestones/


:arrow: http://en.wikipedia.org/wiki/Albert_Francis_Zahm
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Re: P2SPG and P2SHG Partial Second Surface

Postby Bob Kuczewski » Wed Jul 25, 2012 9:08 am

RickMasters wrote:Bob, I simply ran out of money and closed my Mythology of the Airframe web site.

Do you still have the files? I think your record of fatalities is worth preserving. I might be willing to help with the hosting.

RickMasters wrote:No paraglider pilots ever contributed to its upkeep.
They don't want to hear the truth.
That's very important to them.

I'm not against paragliding ... when practiced in "relatively safe" conditions. But I agree with you that there are elements in the paragliding community who want to suppress the truth. Don't let them win, Rick!!

RickMasters wrote:Like many others, he thanked me for saving his life.
...
A lot of other people thanked me for saving their lives.

That's a pretty big deal, Rick. That's worth continuing the effort.

RickMasters wrote:Paragliding will destroy hang gliding.

That's only true if hang gliding allows itself to be outvoted by the growing number of PG pilots. That will happen in a combined organization (like USHPA), but it can not happen in an organization dedicated to hang gliding alone. That's why it's so important to get behind a national hang gliding association ... while we still have time and members.

RickMasters wrote:It was the greatest sport that had ever been created by man.
I firmly believe that.

I do as well. When I'm having a great flight, I will often thank the people who helped me learn to fly and those who built the sport. I may not know all their names, but my thanks goes out to them just the same.

RickMasters wrote:You threw away your sport.
You need to fight to live.
It's Darwinian.
Don't you understand?
It's not like you don't deserve what's coming.
You have my condolences.

It's not fair (or even correct) to lump all hang gliding pilots into one group. There are those who are passive and "threw away" the sport, and there are those who are fighting to save the sport. Which group would you like to help?

JoeF wrote:The US government in one way or another spent huge amount of funds over the canopy gliding wing, but not with sport canopy paragliding in mind with high-aspect ratio wings flying near ground with bodies dangling waiting for the inevitable turbulent wraps and impacts

You make an excellent point Joe. Safety is always relative ... since nothing (not even sitting in your living room) is 100% safe. But the relative safety of flying a high aspect paraglider near any ground turbulence is far lower than flying a hang glider in the same conditions. I think Rick's database of fatalities confirms this.
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Re: P2SPG and P2SHG Partial Second Surface

Postby ARP » Fri Jul 27, 2012 5:52 am

Bob,

The stabilty of the PG is achieved with the pilot a long way below the canopy. Spanwise pneumatic tubes have been tried but in turbulence once the pilot load goes negative the canopy overflys the pilot and tucks. The idea is that in turbulence the canopy is allowed to collapse and then recover keeping the pilot below the wing. The problem is that much of the flying done in ridge lift does not provider sufficient height for the canopy to recover before the pilot hits the ground.

I am working on a HG design that gives the portability and set up time of a PG with comparable performance but without the problem of collapse.

Tony
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Re: P2SPG and P2SHG Partial Second Surface

Postby Bob Kuczewski » Fri Jul 27, 2012 9:02 am

ARP wrote:I am working on a HG design that gives the portability and set up time of a PG with comparable performance but without the problem of collapse.

I can't wait to see it!!!     :clap: :clap: :clap: :clap: :clap: :clap:

One of the biggest barriers to hang gliding is the storage and transportation problem. Young people (who are the best candidates to enter the sport) often live in apartments with no storage options or they drive tiny fuel efficient cars which make poor HG vehicles. So they turn to paragliding since it fits their lifestyle. If you can overcome the portability problem, that would be a huge boost to the sport of hang gliding!!
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Re: P2SPG and P2SHG Partial Second Surface

Postby JoeF » Thu Nov 01, 2012 10:19 am

Saga continues:

BHL JAP building

Published on Oct 30, 2012 by cloudbase81
"Making-of" Video, of BHL JAP Singleskin Prototype.Detailed information about this project
on Laboratori D´envol. http://www.laboratoridenvol.com/
This video is not an instruction, it just shows some steps of a possible building process.
Enjoy and feel free to leave a feedback.


BarretinaHyperLite
Barretina HyperLite
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Re: P2SPG and P2SHG Partial Second Surface

Postby JoeF » Thu Nov 01, 2012 2:13 pm

Join a National Hang Gliding Organization: US Hawks at ushawks.org

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Re: P2SPG and P2SHG Partial Second Surface

Postby JoeF » Wed Jan 23, 2013 8:12 pm

Comparatif Adrenaline Batlite / Ozone XXLite par Certika
from maeva giacometti PLUS 1 day ago

https://vimeo.com/57959855

The dream of David Barish again: single-skin sail paragliders!

XXLite (red glider) vs
Batlite (white glider) (Chamonix and Le Gran Bornand, France January 2013)


~Pere Casellas :clap: :clap: :clap:
http://www.laboratoridenvol.com/project ... sk-nr.html
http://www.laboratoridenvol.com/
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