- just found an URL from Smithsonian featuring 70-minute presentation with
Bill Liscomb elaborating on Big Blue Sky the film- Me thinks the Broadcast - is
copyright free- so may be lifted and placed on the HGAUSA- web site - without a
go here -
--- May 9, 2010, news:
Suggest you make a place for this on the web pages :
I have presented three lectures/(film) at local high school with positive
Next week I will be presenting at Niceville High School, Embry Riddle extension course Aviation / Science Class - With wonderful
reception from youth-- Have located local beach (gulf) training site which is
part of State Park,
Topsail Hill Beach , with massive dunes facing the south prevailing
breezes- Will lock in the use of said beach for making
educational field trip- to allow static display of HG- Instructor
Tim Hester is pushing for building several - repeat several HGs for next
Will keep you informed.
Neil Larson SCHGA #24 , Historian - Lifter -
have contact with Eddie Paul for use of patented Porta Kite build plans. Have
been using your PDF of Cronk #3. And, of course, I
will make a
Hang Loose -
Lift Later, ~~
As a side note about yesterday:
After first half of Big Blue
Sky (the movie) in High School Aviation class today
I simply asked who in here would like to build & fly one of these hang gliders ? Every hand went up –
They liked the part when Tom Peghiny said he had to get a permission slip-
from his mom to fly and win the Nationals.
Great stuff - ~~
News Release approved by AWEIA protem president John Oyebanji
and sent out by temporary coordinator:
Airborne Wind Energy Industry Association (AWEIA)
~~~global service, member of Global Wind Energy Council~~~
Persons, companies, and corporations in four sectors in about 233 countries are
1. AWE Companies
2. AWE Supply-Chain Entities
3. AWE Individual
4. No-dues individuals, companies, corporations
The "here" link at the top of the revised page
is for joining the first tier membership in the global AWE Community
at AWEIA: http://AWEIA.org
Best of energetic lift to you and yours,
Pleasant day with very mild and soft lift at Sylmar Flight Park, May 16, 2010.
About 20 hang gliders. WindSportsJoe Greblo came in from a tandem on a NorthWings T2 with a first-time-tandem-student Mark ____ who is midway on instruction. Gazebo project is
near to installation! Several volunteers are fixing plumbing and
plants and landing turf (lead HG project guy: Rob Burgis, aka BudRob). LZ conversation was up;
gracious greeting once again by Janyce Collins, aka jcflies, pilot. Also,
a young married couple came
in on their own tandem glider; they figured their weight and gear (adds over glider weight) was
about 365 lb. I noted that Greblo has several Art Bean
original drawings on the office wall. Art Bean won the best craftsmanship
from Self-Soar Association in 1971 with a physical trophy finally presented to
Art Bean for large inspiration to hang gliding by Joe Greblo at the 2003
Dockweiler celebration meet to Art Bean.
Otto Meet 1971. ~~jpf
On Wed, May 19, 2010 at 2:47 AM, TONY PRENTICE <email@example.com> wrote:
Looking at the photo of the 1961 model Rogallo type aircraft I think the triangle is more likely to be the wing support pylon rather than the control arm. The single strut in the middle of the triangle looks more like the control arm and cable support. If so, it is more like Palmers control stick
arrangement. There does not seem to be a cross strut holding the wings apart so the "cable" to the wings may be struts?
Are there other photos to check constructional detail against?
That photo is all I have at the time.
Agreed. Thanks. Will discuss.
Not sure what that single middle item is doing.
The entire lower motor-holder is lower mass under parasol flex-wing. The triangle frame part seems
to act as a two-queen-post pylon as gets used in some parasol holdings.
I am this morning not clear about your reference to Palmer's control stick (are you referring to his mid-60's N-numbered powered flex-wing?
On the shown arrangement, It does seem that there are struts long to the two lateral leading edges and no cross-bar at the wing.
The article in Pop Mech Nov. 1961 shows a military-like guy with a different model with two cross-bars but with no under-wing airframing, but just the wing.
The article in Pop Mech shows
a near-Prentice-1960 tethered parachute pilot in drawing under flex-wing in simple sketch art.
The Palmer glider I am referring to I have only seen a rough sketch of and Ken
has it in his museum collection.
The pilot sits on a swing seat with a single drop control arm (may be with a "T"
at the bottom). He also used the inverted "T" on his powered trike.
I would be interested to see the sketch you refer to in your last sentence.
[ HERE IMAGES ]
<= Click for full instruction.
Of course work had been done before the filing date of
November 14, 1962. William L. Effinger, Jr., of
Hamden, Conn., and Henry Struck of Hamburg, Conn.
The teaching handles the kite mode (short or long tether),
free-flight gliding mode with suspended masses, powered mode, powered-assisted
gliding mode. Understood in the instruction are both the crossbar and the
crossbarless arrangements. Even auxiliary aerodynamic controls were
instructed. Understood was billow shift. Understood was the possibility of
divergent dives. The instructors did not choose to spend time on the
five-decades-earlier 1908 cable-stayed triangle control frame (TCF) with pilot
tethered behind the TCF, as we much use today in many hang gliders and
microlights. The instructors kept claiming for the three modes:
long-tether kiting, short-couple hung mass gliding, and the powered mode. Of
course, towing the long-line-mode system could be done by any well-known
methods: people, cars, airplanes, boats, etc. After their progress,
they finally filed instructions in November 14, 1962. It is challenging to
see mechanical novelty over what had been done in similar directions in all that
NASA and Ryan did from 1958-1962, and even earlier by others.
May 20, 2010
Something in me invites keeping the window open
for something more compact than a flex-wing bag-pack.
One flash comes to mind: My very layered clothes become spars
and sail of a hang glider.
Note: Instead of "adding" batteries, aim for making the
bones of the e-assisted HG play a double purpose as ultracapacitors. Charge the
bones; use the charge just to get up a bit to catch a thermal for continuing
flight. After that is achieved, aim to have the ultracaps recharged during
flight by use of
1. Pilot power inputs.
3. PV sail
4. Motion of the kite's tether from which the pilot
Dr. Bell began building kites in
1899. He was led to experiment with them because of his interest in the
flying machine problem and his belief that a successful kite will also make a
successful flying machine. A kite that will support a man and an
engine in a te-mile breeze will probably also support the man and engine when
driven by a motor at the rate of ten miles an hour. This proposition has
not been actually proved, but there can be little doubht thata it makees no
diffrence whether the kite is supported by the motion of the air against it or
by its own motion against the air.
In a calm a kite rises when it is
pulled by a man or horse, because of its motion through the air; there is no
reason to believe that it would not also rise when urged through the air by
propellers. A kite then can be changed to a flying machine by hanging a
motor and propellers to it and dropping the string which attaches the kite to
Contemporary commentary is invited:
Dr. Bell had not much reason to contemplate a slight twist to the
arrangement that would keep the kite string shortened and tied to a hang
glider pilot where the potential energy of the mass of the kite pilot would
work in glide to propel the free-moving kite system through the air in fine
flight, often soaring. Risk to detach the string from unmoving earth or moving
horse while connecting the pilot mass to a shorter string for a risky gliding
falling was just missed. But a few years later we would see several types of
hung pilots behind a triangle airframe part, one of which had the pilot fully
hung and behind the triangle control frame (cable-stayed as so familiar today)
[Breslau gliding club, 1908]; others in the first decade would have the pilot
in a tensional sling seat behind a wheeled triangle airframe part with wheels
assisting in takeoff and landing under power or power-off; see Santos-Dumont
and Louis Blériot, for a couple of examples. Thus, the tethered-piloted hang
glider is a kite system with the mooring moving (note the horse was moving for
Dr. Bell) in a falling manner.