Some
misc. explorations regarding TCF
Triangle Control Frame
-
Timeline for TCF from pre-1800s, through 1800s,
first decade of 1900s, and then following
-
Cayley TCF studies. Hints to his 1904
glider might be gleaned from the tail and rudder in one of the sketches on
http://www.fiddlersgreen.net/models/aircraft/Cayley-FlyingMachine.html
Combine studies with all available drawings and notes.
-
http://www.theaerodrome.com/forum/pioneer-aviation/48102-whats-id-glider.html
-
Notice the Cayley frontal skid anti-whack.
-
Even Cayley's flapping-wing glider has TCF and a
held platform. Recall Leonardo da Vinci on this too. Did
Cayley have access to LdV?
-
http://firstflight.open.ac.uk/cayley/cayley_models01.html Follow
each item.
-
Notice the Cayley 1799 Medallion engravings with
the KP and TCF with pilot in undercarriage beneath wing above.
Age:_______
-
Batot
http://www.kitelife.com/magazine/issue23/diamond/images/Batot-kite.gif
Notice the kite with TCF used for alternative KAP.
-
http://www.tech-domain.com/thread-8082-3-1.html
-
Alexandre
Goupil’s Sesquiplane 1883
-
Ader Avion No. 3 - 1897 Notice the
covered TCF and its held platform.
-
See TCF in Flight weekly in 1910, in article for
"Stability control device" .. verify.
-
http://www.flightglobal.com/pdfarchive/view/1910/1910%20-%200589.html
Notice the editor's comment about the non-novelty. Of course such is true,
as even 1887 Beeson fully taught pendulum control in patent. Others also.
-
http://magazinehistory.blogspot.com/2009/03/aviation-magazines-in-america.html
-
http://www.flightglobal.com/imagearchive/Image.aspx?GalleryName=Photo
Archive/Pre 1914&Image=FA_Events+Bourn+1910+08
-
http://www.flightglobal.com/imagearchive/Image.aspx?GalleryName=Photo%20Archive/Pre%201914&Image=FA_Events+Bourn+1910+07
-
TCF join to keel or other airframe parts
-
Staying TCF by cable (noticed strongly in Breslau
gliding club in 1908); this is the most used method.
-
Staying TCF by rods
-
Staying the TCF by struts
-
Legs, downtubes, uptubes, sides, down tubes, up
tubes,
-
Basebar
-
ADEYTO & World's smallest
"One-Man Helicopter" GEN-H4 Echo of the early TCF of
Bensen gyrocopter. Timeline full helicopter and gyrocopter histories for
control.
-
Notice the TCF with tensional basebar
and rigid downtubes:
PH -
Personal Helicopter
Austria, 2007. Co-axial .. Two counter-rotating propellers on same axial.
CONSIDER: I am wanting the mass of the driving engine or motor to be low
with the pilot, perhaps pilot's seat space; drive the rotors from that distance;
what would be the difference?
-
Sub-basebar structures
-
TCF in demonstration rigs
-
TCF in
practice rigs
-
TCF as
face of tetrahedral practice rig.
-
TCF as
face of tetrahedral practice rig that has motion of TCF guiding wheels of rig,
perhaps as a cart that rolls down hills.
-
TCF hung
from trees.
-
TCF hung from single slanted pole, which pole is
cable stayed to sand anchors. Perhaps put a high hat that will give some
pressures on the TCF. Practice light touch of TCF uprights and basebar; hang for
long sessions to get practice at the relaxation and of the balling knees up
without overcontrolling the TCF parts.
-
TCF as near-universal aircraft control (partial
or full control; e.g. control position of landing and launching wheels, position
of added motor. ) rig since 1800s.
-
TCF
-
Wheels
-
Handling TCF at launch
-
Handling TCF at landing
-
Handling TCF during flight
-
Products related to TCF
-
Surfacing of the TCF parts
-
Using the interior of the TCF parts
-
VG lines and TCF
-
Aerodynamic controls and TCF
-
Sizes
-
Fuel contained in TCF legs
-
Variable geometry control lines in the TCF parts
-
-
Materials
-
Monkey flying
-
Extra lines considered
-
Instrument base (on, in, on surface)
-
Fuel-holding in TCF
-
Battery-holding in TCF interior
-
TCF poetic space
-
Memory post
-
No-more-whacking and the TCF
-
Patents involving the TCF
-
TCF in trikes
-
http://curedcomposites.netfirms.com/hangbuggy.html
-
http://groups.yahoo.com/group/hangbuggy/
-
http://curedcomposites.netfirms.com/images/025.JPG
-
http://www.compositecreations.com/Nano-lightTrike.htm
-
TCF in microlights
-
TCF in Bensen
-
TCF in Spratt
-
TCF in powered aircraft
-
TCF in itself
-
TCF in X-winging
-
TCF in Tet-winging
-
TCF in Paramontante
-
TCF embedded in multiplanes
-
Undercarriage
TCF
Scratching, rough:
Canard WingSled™ for Hang Gliders ;
LandingSled™
CWS™ Send notes to :
Notes@HangGliderMagazine.com
and or post in the wiki at HangGliding.org
- A wiki is started for others to use to advance some notes about some of
these matters that have been inspired by the downwind downslope challenge of
NMErider. wiki:
http://www.hanggliding.org/wiki/SoGHG and
http://www.hanggliding.org/wiki/Low_canard_sled_wing
- July 15, 2010: OZ Report post in "High hats" Increasingly
some "low hats" added to hang gliders
will cause the ordinary hat hang glider wing to become
relatively a "high hat." Watch for a family of low canard
wings to enter the scene as "low hats" making most
wings "high hats." In part, the low hats will be playing
several functions in order for the regular-hats-become-high-hat
to protect neck, heads, shoulders, faces, eyes, backs,
and serving with-wind landings and downwind downslope
landings.
Following primary safety functions could be
secondary functions: monitor surface, plan surface,
checklist surface. Monitor views will include in some cases
realtime reports from above and behind the glider.
The interior space of the low hat could hold various
developments: energy storage, instrument brains, first-aid,
second rescue chute, self-kiting gear, etc., depending on
the particular system. The high hats (former main regular
wing) will be slightly modified to accommodate a frontal
low canard low-hat wing.
All are invited to advance the canard low
hat that
will bring the ordinary HG wing to "high hat" status.
A wiki and a working page besides this thread are open for the growth:
http://www.energykitesystems.net/TCF/index.html
and
http://www.hanggliding.org/wiki/Low_canard_sled_wing
"
- Compare the usefulness of WingSled against the skids of primary gliders.
- ETRICH 1907
-

- ETRICH 1907
-
-
- Look at the Wright Flyer. Not quite what is sought.
- WWW Wheels when wanted.
- WingSled™When
Wanted WS
- What if the the CWS top surface was a screen that showed what was
beneath and above the HG and behind. Monitors showing realtime views.
-
http://www.sailwx.info/wxobs/windspeed.phtml
other topic here. Wind speed map.
Wind direction:
http://www.sailwx.info/wxobs/winddirection.phtml
- How do pilots get themselves into downwind landings?
- How to avoid getting into downwind landings?
- Once equipped with CanardWingSled™, then practice flatland
long gliding slams and gliding slams; practice the sledding over sand, rocks,
plants in mild tailwind landings. Have all the gut and leg protection in
place; have the CWS in place and tested. Have face guard in case of
splatter from the CWS.
- The construction of the CWS should have interior fiber
complex that will prevent explosive splattering. Have the make of it very
tough. The bottom surface of CWS will be hard and tough and Teflonized.
- Perhaps clear Lexan plate sandwich with a net of wide-mesh
Dyneema cords to keep visibility while have a splatter-proofing from the
embedded cords.
-

- Skid
WingSled™ (from Omega Hang Gliders) . Put a surface that will not
catch; carbon fiber plate.
- Frontal canard that actually has a trailing edge just aft of the basebar,
so skiing the bottom surface of the canard wing over rocks and plants will
protect the pilot. The canard wing will be made of composite carbon fiber CCF
and be held by a sturdy carbon beam from the leading edge of the main wing.
- Downwind downslope .... pilot with skis on his feet. How could one
off the skis at the last moment if one wanted street shoes for the landing.
If one is committed to stay in the pod, then how might skis come into sturdy
place when standing vertically. The canard
might be best.
- If there is 15 mph plus tailwind at landing in an 18 mph wing, then the
ground will be moving at 33 mph when the canard will be hitting rocks and
plant as a broad ski; this will slow the system, but still there will be the
15 mph tailwind that could catch the trailing edge and flip the wing
- Extended keel to skid
- If canard WingSled™
(from Omega Hang Gliders) is being used, then a
see-through aft-section of the sled could give visual ; the aft part should go
as far as under the TCF basebar, so that the plants and rocks will not pop up
and catch the basebar.
- If I am coming in with tailwind and the rocks and plants are streaming by
at 30 mph, then skiing of the legs without catch will be important. Firm knee
protection! Clear all snags. Lower section of the harness should sled also.
- Will the canard have two settings? For for flight and one for landing?
- No beaking
Fold down a portion of TCF forward to become skid
- When the sledding is occurring over the rocks and plants, the bracing will
be on the control bar and pulling the front flying wires; so beefy frontal
flying cables will be important.
- In a tailwind landing, a final keeping nose up could keep the wind from
flip trail-edge over top.
- Last minute restraining pilot to the aft cable; have lines left and right
to harness that go to aft flying lines; a mid cable hookin will be available;
this will keep pilot from flying too far forward if a sudden whack or stop is
experienced.
- Downwind downslope landing of hang glider ....what to do? If the
slope is steep, then fly downwind with extra airspeed and then use that energy
to fly out and make a turn to do a quick upslope landing into the wind.
- GS will be wind speed plus flying airspeed
in a tailwind landing.
Do keep flying; keep up airspeed no matter that the ground is going by fast.
Things will be OK if the texture of the ground is OK and some preparations are
made for this kind of landing. What could those preparations be?
- The trip from TCF feet is the
challenge. Even if there were wheels at the feet, they are in a place
that does not solve, if the wheels are low tread and the texture of the
landing is with sand, rock, or plants that would catch the basebar and
bring rotation of nose to a beaking. Small wheels do not keep the
basebar up away from stones and plants. Plants and rocks can hit the basebar
and trip the glider into beaking. Ball, turn, and ?
- Idea fuzzy: quick shortening of the hang lines.
- Idea fuzzy. Hang line that stretches without rebound, but takes up energy
when stretched.
- What is wanted in one tactic for
downwind downslope or
even just downwind level is to ski over the irregularities of the ground while
flying. Tailwind downslope.
- Prove the solutions with FLG flatland long gliding ...
- Practice with solutions, so that the fast groundspeed thing is familiar.
- Desert plants are a challenge. The Joshua tree is high and most
troublesome. Could I map out clear-enough areas in
non-road areas? Wheels for hiking out will be wanted. Could wheels
be stowed in the harness backplate? Or could wheels be wrapped from battens?
Or drag on ski?
-
- Frontal low skid. Look at primary gliders and
powered aircraft. HGs should not be different.
-
- WWW Wheels When Wanted
- BRWW Big roller when wanted. But if the canard sled is
used, then rollers and wheels will not be needed.
- Frontal low skid that could ski over plants.
- Split TCF so that the frontal split rotates forward
- Catch net pulled up from TCF basebar hold to fill the triangle of the
frontal wires.
- Harness body to rear of keel to prevent full swing through.
- Quick harness shoulders to the two feet of the TCF to prevent full
swing-through. The holds could be energy-takers that let some swing-through
with non-rebound stretch; that is, no springback, just stretch with a taking
up of energy. This might be pneumatic compression with release of air from
leak as a piston in the special cord compresses air but releases at a certain
rate. Or a one-way bungee that ratchets to prevent rebound.
- Tet with lower face ....too sharp....such could dig
in......rather, the broad canard wing would be much better. Broad canard would
press down plants and skip over rocks. A sharp delta canard could cut into
plants and get caught or dig into ground and plow or enter between rocks and
wedge. Differently, I want to ski over plants and ski over rocks.

- July 9, 2010, sent a note in Facebook to Dave Kilbourne about my working
on small low canard to do several functions: Lift, front downwind
downslope skid, anti-whack, and other secondary uses.
- Posted note in July Lift 2010.



- aquaTCF.jpg Date sought. Pilot sought.





-

[[Pilot is sitting tensionally held on item 12 while pilot
operates degenerate TCF item 18, which 18 is rigidly connected to wings and
operates as a lever to move the hung pilot mass to a different spatial
position relative to the wing. this was before Igor Bensen use of a similar
tactic in later 1954c . ]]
- Gustave H. Brekke, of
Seattle, Washington. Filed May 16, 1908

Patent number: 955049

Filing date: May 16, 1908



G. C. Beidler, filed June 24, 1909






Now that the sport of aviation, and therefore the industry
of aeroplane manufacture also, is rapidly reaching
a comparatively settled stage, and now that a very
active season is evidently before us, it is fitting
once more to consider the best directions in which
to encourage the energy of pioneer pilots for the
development of the machines that are destined at
an only slightly later stage to bring the sport within
the sphere of the
bona fide amateur owner. During
the past year there have been a considerable number of
competitions of one kind and another, and although any
type of event, or even, for that matter, every individual
flight, is instructive and to that extent useful, it has become
evident that in order to cultivate both progress and interest
at one and the same time, and to the very best advantage,
there is room for the display of some amount of discretion
in the selection of the kind of competition that is most
calculated to serve these ends. Above all, we think it
must be recognised that, at the moment, the aeroplane of
to-day is somewhat of a forced growth, in spite of the
veritable marvels that can be performed with it. It is
useless to deny that, even if the actual art of flying is no
longer an altogether uncertain matter, yet the construction
of the machines still leaves a good deal to be desired as
regards the reduction of the risk that is run by those
riding upon them.
Jan. 8, 1910, Flight, aero weekly, page 18.
New Zealand Richard Pearse - inventor and aviator.
See his control cage. See the triangle base. Pearse monoplane.
http://www.nzhistory.net.nz/Gallery/Pearse/Pearse.html
Etrich flying wing of 1908
http://www.456fis.org/HISTORY%20OF%20FLIGHT/1906%20Vuias.jpg
Explore all 1900-1920 monoplanes.
Training device:

Mr. A. Sim


First Paris Aeronautical Salon. Are there photos
of all craft that were displayed?
Santos Dumont's La Demoiselle
The Automotor journal.
Publisher: London : F. King and Co., Ltd.,
Description: v. : ill. ; 28-31 cm.
Began in 1896.
B.I.Cheranovskiy's Flying Wings [[BICH pic
file]]

http://www.compositecreations.com/Nano-lightTrike.htm
JpF sent further: July 21, 2010: Spring out sled from beneath
control bar held by hinged legs that stow to front of TCF legs; at trigger, the
sled pops out forward and attains a sledding angle of attack; the sled is as
wide as the basebar of TCF and is stayed off by two or more set-offs from the
bottom of the TCF legs and basebar. Ratchet lock prevents return when rocks or
brush are hit. Much broader tread than wheels by far; and the basebar does not
get caught by rocks or brush or sand or gravel or holes; rather, the wide sled
skips or sleds over the top of the obstructions. Primary sketches
are in spiral notebook used while waiting at the hospital on July 20, 2010, at
Cedars-Sinai Hospital near Beverly Center.
LandingSled™
sledges
Spelling used in 1851
version of A treatise on the æropleustic art, or navigation in
the air by means of kites, or buoyant sails: with a description of the
Charvolant, or Kite Carriage
A sled, sledge, or sleigh is a vehicle that moves by sliding. Usually
runners or a smooth underside enable a sled to slide. Sleds are used for
transport on surfaces with low friction, usually snow or ice. In some cases
however, mud, grass, or even smooth stones make a good surface for sleds.
en.wikipedia.org/wiki/Sledges
2010 July

aero craft, aeroplane, aerial craft, flying machine,




-

See more. Patent number: 1000273
Filing date: Oct 8, 1909
-

-
http://discaircraft.greyfalcon.us/picturesf/hort7.jpg

-
http://energykitesystems.net/images/TCFhistory/CayleyTCF.jpg
This seems near the TCF
of Leonardo da Vinci. Understood by Cayley: low
placement of CG for stability, landing wheels in basebar, pilot affecting
airframe through press on basebar. Standing as
per Leonardo da Vinci in the TCF ...
-
http://www.scienceandsociety.co.uk/results.asp?image=10321809&wwwflag=2&imagepos=15
Sir George Cayley's Aerial Carriage
- Mechanics' Magazine
- George
Cayley's design for an aerial carriage, April 1843.
http://www.centennialofflight.gov/essay/Prehistory/Cayley/PH2G2.htm
-
http://www.joseflebovicgallery.com/catalogue/cl_134_2009/Large/134_0002.jpg
March of Intellect, art. Paul Pry (pseudonym for William
Hath (1795-1840), March of Intellect, 1828. Etching with hand coloring.
The art shows an early version of free-flight paragliding usingt
single-tether; the pilot pod has some aerodynamic surfaces with drag
enough to allow distance gliding and soaring, especially if the single line
was very long ...which could not easily be shown on the drawing. #t=1
Paraglider with a kite at each end of the tether; the lower end is the
resistive set r, the upper wing is a wing; the integrity is a paraglider in
free-flight kite gliding; year of the drawing c1828. This predates the
Woglom find described in book Parakites, published in 1896. Notice
also the wingsuit gliding mad, balloon platform, tethered water hulls,

- See
http://www.energykitesystems.net/WPGA/images/GlidingKites/1828t1Paraglider.jpg

-

- vanes, fliers, wing waftage,
- Heat air using focused sun ??
-

-

-
-
http://www.flyingmachines.org/hens.html
William Samuel Henson 1812 - 1888
Explore him comprehensively.
-
http://invention.psychology.msstate.edu/i/Chanute/library/Prog_Aero_Jul1892.html
Moy.
- http://invention.psychology.msstate.edu/i/Chanute/library/Prog_Aero_Nov1892.html
STUDY.
- William Samuel Henson and John Stringfellow. ""Mr. Henson's
aeronautical work was influenced by the world renowned Sir George Cayley. ""
- Mr. Henson submitted a patent (British Patent #9478)
[ ] the "Aerial".
http://ezinearticles.com/?Henson-and-Stringfellow&id=2509500
-
http://invention.psychology.msstate.edu/i/Chanute/photos/Prog_Fig62.gif
Is Rogallo partly preempted here with string hold of gliding wing?
"Exposed head on to a wind of 18 to 20 ft. per second, the body being inclined
at an angle of 1 in 10 and the wings at 1 in 6 (about 10°), this apparatus
lifted up clear of the ground the weight of two men besides its own, making a
total of 440 lbs.! The thrust or end resistance did not exceed 17.6 lbs. M.
Goupil tested this several times, and expresses himself as surprised at
the low resistance to penetration against the wind evidenced by this
apparatus, which was mounted upon two small wheels."
-
http://www.aeragon.com/air/pio/index.html
-

- Jakob Degen, a
watchmaker from Vienna
-
http://en.wikipedia.org/wiki/Timeline_of_aviation_%E2%80%93_19th_century
This article needs much further work. Incorporate Walker,
Wenham, etc. fully.
-
1898 1899 1900 1901 1902 1903 1904
These need beefy work. What about 1906, etc.....marching onwards?
- Consider timeline for hang gliders. 1906, 1907, 1908
etc.
-
http://en.wikipedia.org/wiki/Timeline_of_aviation_-_20th_century
THIS NEEDS MUCH WORK.
-
http://en.wikipedia.org/wiki/1908_in_aviation NEEDS MUCH WORK.
-
http://www.earlyaviators.com/edelagra.htm
- Bryan Allen flew man-powered Gossamer Albatross over
English Channel in a human-powered aircraft; flight took 2 hours, 49 minutes
What was his average horsepower output? June 12, 1979
-
http://www.flightglobal.com/pdfarchive/view/1924/1924%20-%200107.html?tracked=1
STUDY FULL on all issues of Flight.
Cycleplane.
- PILCHER:
http://www.flightglobal.com/pdfarchive/view/1910/1910%20-%200012.html?search=glider&tracked=1
Bolsters for arm-pits. Hand grips. See how the TCF is with empty
basebar, but function made good by bracing laterally against queenposts which
in turn are cable stayed from above. Make mode. Build and fly.
Pilot was hanging from own tendons.
side-wings
Pilcher used here pendulum weight-shift control; CG was beneath the CP.
Pilot running would not hit the empty basebar of the TCF. Pitch:
....
* Study all text in detail:
"of
deck" "side-wings"
Build replica of both the Lilienthal wing and of the Pilcher wing ....mods
... with modern materials and fly at Dockweiler.
Mod: go high hat (HH) with the OL and PP for a FOL and FPP
: ) FaustHHOL... and FaustHHPP. And
mod with the Breslau TCF of 1908. And a mod of the Santos-Dumont hung
strap seat.
Notice the tensioner wire.
The wheel
from the downtube could be stayed by one nose wire and then a spring or rubber
cord from the queenpost; the forward position would be kept by the nose wire.
Model this. Test it as landing shock absorber.
- Arm-pit bolters and forward handgrip post:
Pilcher was
higher than Otto Lilienthal. Pilcher as a high hat to Otto
Lilienthal on CG positioning relative to CP.

-

-
http://www.flightglobal.com/pdfarchive/view/1909/1909%20-%200403.html?tracked=1
Source in Flight of the above clip.
-
http://www.flightglobal.com/pdfarchive/view/1910/1910%20-%200024.html
Drawing of Pilcher glider.
-
http://www.flightglobal.com/pdfarchive/view/1910/1910%20-%200023.html
-
-

- Mr. T. O'Brien Hubbard, the Assistant Secretary of the Aeronautical
Society of Great Britain
- flying ground
- Juvisy Aerodrome
- flapping wing principle M. Collomb, of Lyons
- "Brothers Wright" police trap
32 mph Mr. Warwick Wright THIS MIGHT NOT BE USA Wrights?

- Notice Bleriot Monoplane engine position and pilot position. Wheels.
Control frame where pilot operates the aeroplane. Pitch also.
- Aero-docks
- collapsible form of envelope is sought
- Wimbledon Common, July 3rd, 1909, President's Challenge Cup. for best kite
of the year, open to members only, amateur or professional. KFAGB
- home-made kites, manufactured kites. Kite will be raised
simultaneously by the competitors, each kite having a cord 100 to 400 yards
long.
- classification will be made in the following manner: --2 marks for angle
of kite, 2 marks for stability, 1 mark for portability, 1 mark for strength
and construction, 1 mark for weight for area.
- "disposition of the aviator"

Bleriot Monoplane showing disposition of the aviator. Note the wheels,
control frame, aviator position.

1909: Wire-suspended chair:
double-biplane type

1909: Is this the root of "hangar" ???
- reefing, reefed aeroplane, reefing in birds, morphing, shape changing,
reduction of sail area while at speed, increasing sail area for slower speed,
- Arthur Cayley wrote a letter to the editor of FLIGHT. Arthur noted about
his great-great grandfather. "Among many things that he made were the
following: A choke-bore gun as used now, a bicycle, and a flying machine of
the heavier-than-air type, which flew by means of an engine of his own
construction. In this machine he inveigled his coachman, who jumped out on its
leaving the ground, and broke his leg and the machine. The engine employed was
driven by a number of explosions of gunpower, each in a cell of its own, and
discharged by a detonator. I hope shortly to see some of his many plans, which
are still in existence." May 8, 1909, Flight, page
270.
- aeronauts and aviators: DISTINGUISH IN SUCH ERA
- Aero Club of France
- Canada: Aerial Experiment Association AEA
http://en.wikipedia.org/wiki/Aerial_Experiment_Association
- For low wind takeoffs: the wide chord downtubes at drive point is helpful
as the shoulder uses that width as a pivot point during hold and driving.
- Wire tighteners ... history
- Streamlined struts . .. history
- Faired cables .. history Faired tether for water
and air .. history.
-
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200035.html
Study.
-
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200054.html
-
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200053.html
-
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200059.html
Curved springy downtubes
-
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200071.html
-
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200099.html
- chassis, undercarriage, rear skid, back skid, tail skid, front skid, nose
skid,
- An earlier Gertrude R. Robins
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200110.html
Glider for practise.
-
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200135.html
-
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200160.html
- Weiss monoplane in flight:
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200197.html
-
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200203.html
-
http://www.flightglobal.com/pdfarchive/view/1911/1911%20-%200212.html
-
-
-