|
Home Up
| |
Check-Six Online Museum
Air / Aviation / Aeronautical Wing
| |
First Rockwell X-31 Production Chip
Display |
The
X-31 program differed from most prior NASA programs in its emphasis on
military applications in flight. During flights with US and German service
pilots, the X-31 aircraft was evaluated in a variety of simulated air
combat roles, including air-to-air close combat, ground attack, military
maneuvers and aircraft carrier operations. This airplane was capable of
controlled flight at both angles of attack greater than 70 degrees and
during post-stall conditions beyond the aerodynamic limits of any
conventional aircraft. During dog fights with comparable but
non-thrust-vectored aircraft, the X-31 maneuverability was clearly
superior. Controllability at high alpha gave it almost a helicopter-like
ability to put on the brakes, do an about-face and fire from within the
opponent's turning radius.
 |
|
Close-up of the shaving
|
Two X-31A aircraft were built by Rockwell International,
Downey, California (now part of Boeing) and Daimler-Benz Aerospace (DASA),
Germany, in an international research program funded by the US Advanced
Research Projects Agency (ARPA) and the German Federal Ministry of Defense
(FMOD). This shaving was produced on May 26th, 1988, in a ceremony
with the
directors of the X-31 program, the president of Rockwell, and numerous
managers. This display measures 18 inches in
height, and 14 inches in width, mounted in heavy matting.
Of note, this
chip was shaved from a piece for the first X-31, which crashed during
flight testing on January 19th, 1995. Click
here for more information on this crash.
|
|
Lucite Paperweight Containing
First Chips from the Jetstream 41 |
|
The Jetstream 41 is a turboprop-powered
feederliner and regional airliner, originally designed by British Aerospace
as a "stretched" version of the popular 19-seat Handley Page Jetstream 31.
Intended to compete directly with 30-seat aircraft like the Embraer
Brasilia, Dornier 328 and Saab 340, the new design eventually accommodated
29 passengers in a two by one arrangement like the Jetstream 31's.
The stretch added 16 ft (4.88 m) to the fuselage, consisting of an 8 foot
(2.5 m) plug forward of the wing and a 7 ft 9 in (2.36 m) plug to the rear.
The additional weight demanded a wing with increased span, which also
included reworked ailerons and flaps. The wing was also mounted lower on the
fuselage so that it did not carry through the cabin aisle, which also led to
larger wing root fairings that increased baggage capacity. The latest
version of the Garrett engines, now owned by AlliedSignal, delivered 1,500
hp and were mounted in new nacelles with increased ground clearance. The
flightdeck was improved with a modern EFIS setup, and a new windscreen
arrangement.
Development work on the J41 was announced in mid 1989, and the first J41
flew on 25 September 1991. Three further aircraft were also used in
the flight test program, and the design was certified on 23 November 1992,
with the first delivery to an end-user taking place two days later. BAe
decided to "spin off" the Jetstream division in 1993, and "BAe" was dropped
from the name of the aircraft. In January 1996 the J41 became part of the
Aero International (Regional), a marketing consortium consisting of
Aérospatiale (of France), Alenia (of Italy), and British Aerospace. Sales
were fairly strong, but in May 1997 BAe announced that it was terminating
J41 production, with 100 aircraft delivered.The J41 was initially known as the BAe Jetstream 41, but BAe's
establishment of a separate Jetstream Aircraft division in mid 1993 saw the
name simplified to just Jetstream 41. From January 1996 the J41 became part
of the Aero International (Regional) stable, but in May 1997 BAe announced
that it was terminating J41 production. As of August of 2006, 52 J41s
were reported to still be in service.
This lucite paperweight contains chips from the first piece milled for
the J41. It is 3 inches tall, 4 inches wide, and an inch in thickness.
|
|
Swatch of Interior Fabric from
a (restored) Boeing 307 "Stratoliner" |

|
The Model
307 Stratoliner was the world’s first high-altitude commercial transport
and the first four-engine airliner in scheduled domestic service. With
names like Rainbow, Comet, Flying Cloud and Apache, the Stratoliner set
new standards for speed and comfort. Its
pressurized cabin allowed the airplane to soar above rough weather at an
altitude of 20,000 feet — higher than any other transport of its time.
Its circular fuselage provided maximum space for the five crew members and
33 passengers. The nearly 12-foot-wide cabin had space for comfortable
berths for overnight travelers. The
Stratoliner was the first airplane to have a flight engineer as a member
of the crew. The engineer was responsible for maintaining power settings,
pressurization and other subsystems, leaving the pilot free to concentrate
on other aspects of flying the aircraft.
In 1940, the 307s started flying routes to Latin
America and from New York to Los Angeles. Production stopped at the onset
of war, and five were drafted into the Army Transport Command as C-75
military transports. The
Clipper Flying Cloud, one of only ten Boeing 307 Stratoliners built and
the sole remaining one, was delivered to Pan American World Airways in
1940 and designated Pan American 903. It was flown in Caribbean service
for two years, when a one-way ticket aboard the luxuriously outfitted
airplane cost $1,000 in 1940 dollars ($12,000 now). With the onset of
World War II, 903 was put to work for the Army Air Transport Command,
flying South American routes from 1942 until 1946, when it began to fly
the daily round trip between Bermuda and New York. Eventually the plane
had numerous owners, including Le Corps d’Aviation de l’Armée
d’Haiti. Named the President’s Model, it was used as the personal
airplane of “Papa Doc” Duvalier.
The
Smithsonian Institution acquired the aircraft in 1972. The Boeing Company
offered to restore the Clipper Flying Cloud to its original and
flightworthy condition in the early 1990s, a rebuilding effort that
transpired in the same Seattle building where it was first built. After
six years of painstaking work, concluding in June of 2001, dedicated
Boeing technicians and former Pan Am employees completed the restoration
of the world's only remaining Stratoliner.
On
March 28th, 2002, Clipper Flying Cloud was ditched in Elliot Bay near
Seattle. The ditching was largely the result of inattention to the fuel
gauges and poor assumptions by the four crew members. The Stratoliner was
carefully hoisted from the water the following day, and on June 14th,
Boeing announced that they intend to restore the Stratoliner, again, to
flightworthy condition within a year. Boeing rolled out the restored
Stratoliner on 13 June 2003. Pan
American 903 is now a centerpiece exhibit in the Steven F. Udvar-Hazy
Center of the National Air & Space Museum at Washington Dulles
International Airport, outside Washington, D.C.
The interior of the fuselage is covered in fabric
specially woven for the craft, which has maps of the world with Pan Am’s
logo. F. Schumacher & Co. of New York, N.Y., used a vintage loom
to produce the original picturesque Pan Am wall fabric showing the Pan Am
logo, world map and animals native to various continents. The fabric
design was the same as that of the Boeing 314 Clipper and Boeing Archives
fortunately had preserved some of the Clipper fabric. The color of the
cloth was determined from remnants trapped between structures of the
airplane. After the ditching, some of the interior fabric need
replaced. This is a swatch of replaced fabric removed after the 2003
ditching.
|
|
First Lockheed F-22 Production Chip Paperweight
|
The F-22 Raptor is a stealth fighter aircraft. It was
originally envisioned as an air superiority fighter for use against the
air force of the Soviet Union, but is equipped for ground attack,
electronic attack and signals intelligence roles as well. It is the most
advanced fighter currently in service and Its combat performance is
considered unrivalled according to the United Kingdom's Defence
Evaluation and Research Agency fighter study.
Long in development, the aircraft was also known as the prototype YF-22
and as the F/A-22 for three years before formally entering United States
Air Force service in December 2005 as the F-22A. Lockheed Martin's
Aeronautics division is the prime contractor and is responsible for
majority of the airframe, weapon systems and final assembly on the F-22.
Boeing's Integrated Defense Systems division provides the wings, aft
fuselage and avionics integration.
On October 6, 1994, Charles Wilkey, a milling machine
operator with Lockheed Aeronautical Systems Company (LASC) of Marietta,
Georgia, began fabrication of the first part LASC built for the first F-22
'Raptor'. The aluminum part is an engine inlet dust frame segment.
From this milling process, the resulting shavings and chips were collected
for promotional use.
The chip in embedded in a lucite paperweight in the
shape of the state of Georgia.
|
| |
Patch Flown on Sixth Flight of the
McDonnell Douglas "Delta Clipper" Rocket |
The
'Delta Clipper Experimental' was constructed in 1991 and finished in 1993 at
McDonnell Douglas' Huntington Beach facility. It was intended as a
one-third scale model of a proposed SDIO single-stage launch vehicle. It
first flew in August 1993 and had completed three flights when the
Strategic Defense Initiative Organization (SDIO) terminated the Delta
Clipper program. After additional funding was procured, the vehicle flew
five more flights before being returned to Huntington Beach for conversion
into the DC-XA.
However, during the fifth flight of the program on June 27, 1994, an
external detonation of fuel cloud vapors caused by the ground support
equipment damaged the DC-X. Despite a 4 by 15 - foot vertical tear in the vehicle's
aeroshell during takeoff, the 42-foot-high DC-X successfully executed a
controlled emergency landing on the desert floor. Nearly a year
later, the DC-X reached an altitude of 4,350 feet flying at a constant
angle. During the ascent, the DC-X traveled 1,150 feet from the flight
stand. The vehicle traveled laterally until it was positioned over its
landing pad located 350 feet from the initial flight stand. The DC-X
touched down approximately 123.6 seconds after liftoff.
Produced by the United States Air Force / Phillips Laboratories, and
McDonnell Douglas Aerospace, this letter of appreciation carries the facsimile
signatures of both the program flight manager, former astronaut Charles
"Pete" Conrad, as deputy director for flight test, Air Force
Captain Dale Shell. The patch celebrates the DC-X's return to flight
after it's near loss.
|

|
|
Close-up of flown patch |
However, it's ultimate fate was only averted
slightly. After the DC-X program was completed, the prototype was
converted into the DC-XA. It was destroyed during its fourth
flight as the DC-XA on July 31, 1997. Landing strut #2 failed to extend, causing
the unbalanced vehicle to tip over on its landing pad. The LOX tank
exploded and there were indications of secondary explosions in the LH2
tank as well. The ensuing fire damaged large sections of the DC-XA. An
investigation board was convened to determine the cause of the accident,
which was later determined to be an unconnected helium pressure line that
supplied hydraulic pressure to extend the landing strut. |
|
Patch Flown on the Second and
Third Flight of the
McDonnell-Douglas DC-XA "Clipper Graham"
|
The Delta Clipper Experimental Advanced (DC-XA) is a modified version
of the DC-X. The DC-XA is operated by NASA and the Department of Defense
under the Reusable Launch Vehicle program. It had a
lightweight graphite-epoxy liquid hydrogen tank and an advanced
graphite/aluminum honeycomb inter-tank built by McDonnell Douglas; an
aluminum-lithium liquid oxygen tank built by Energia; and an improved
reaction control system, made from composite fuel lines, joints, and
valves, from Aerojet. These improvements reduced dry vehicle mass by 620
kilograms.
|
|
|
Place your pointer
over the photo to see the reverse of the patch
|
The flight vehicle was tested at White Sands during the
summer of 1996. On it's second flight, the "Clipper Graham"
climbed vertically at 170 feet per second to an altitude of approximately
590 meters, then flew laterally for 180 meters up range before throttling
back its engines and descending tail first onto the desert floor. Duration
of the flight was 63.6 seconds. The flight also tested the
differential global positioning system (DGPS) that provided positional
data to the Clipper Graham's navigational system. Signals from satellites
of the Global Positioning System and a ground station were used to
precisely determine the position of the reusable rocket. The second
DC-XA test flight which was dedicated to the memory of Lt. General Daniel
O. Graham. At the conclusion of the flight, NASA Administrator Daniel S.
Goldin announced that the DC-XA vehicle has officially been renamed
"Clipper Graham" on honor of the late General who passed away in
December 31st, 1995 of cancer. Graham had supported the development
of single-stage to orbit (SSTO) spacecraft while serving in the Air Force.
"Clipper" comes from the original name of the vehicle, the
"Delta Clipper." The third flight lasted 142 seconds, and climbed to an altitude
of 3,140 meters, setting a new altitude and duration record for the
program. It also demonstrated a 26-hour turnaround between its
second and third flights, a first for any rocket.
The "Clipper Graham" was destroyed during its fourth
flight as the DC-XA on July 31, 1997. Landing strut # 2 failed to extend, causing
the unbalanced vehicle to tip over on its landing pad. The LOX tank
exploded and there were indications of secondary explosions in the LH2
tank as well. The ensuing fire damaged large sections of the DC-XA. An
investigation board was convened to determine the cause of the accident,
which was later determined to be an unconnected helium pressure line that
supplied hydraulic pressure to extend the landing strut.
Click here to see the video of the crash!
|
On
to the next corridor of the "Air Wing" of the "Check-Six Online
Museum"...
|