Category Book of Flight

The Sound Barrier

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OWARD the end ol World War II, aircraft entered a new age ol speed. In 1944 and 1945, German pilots flew the first jet-powered lighter in combat, the Alesserschmitt Ale 262. Allied pilots were astonished to spot it zooming over 100 miles an hour laster than any Allied lighter, and with no propellers!

Alter the war, many pilots tried to fly taster th an the speed of sound. On October 14, 1947, American test pilot Chuck Yeager flew an orange bullet-shaped plane with a rocket engine. It was the Bell X-l, designed to break the sound barrier. Carried up by a B-29 mother plane to save fuel, the X-l was dropped in the air. Yeager lired the rocket engine anil pushed the plane to over 700 miles an hour, past Alach 1 —the speed ot sound. The plane bulleted, then blasted through the sound barrier. Once past Alach 1. it was so smooth, said Yeager, “Grandma could be sitting up there sipping lemonade.”

‘Suddenly the Alach needle began to fluctuate…then lipped right off the ocale, I thought / wao oeeuig thi ago! We were flying ouperoonic:

—Chuck Yeager describing flying
through the sound barrier

Bell X-i

Test pilot Chuck Yeager stands beside his rocket-powered Bell X-1, named the Glamorous Glennis for his wife. The plane now hangs in the National Air and Space Museum. Streamlined for speed, it is shaped like a.50 caliber bullet.

Charles “Chuck" Yeager (1923- )

A World War II fighter pilot. Chuck Yeager became an Air Force test pilot after the war. He made history as the first person to break the sound barrier in 1947. At the time, many believed a plane flying through the sound barrier would be ripped apart by the shock wave. Yeager later rose to the rank of brigadier general.

Famous Flight

On October 14,1947, the Bell X-1 accelerates and races toward the sound barrier. Flying at 43,000 feet, pilot Chuck Yeager became the first person to travel faster than sound, at Mach 1.06.

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< MaCHMETER

Mach numbers measure the speed of an aircraft in relation to the speed of sound. Mach 1 is the speed of sound, which increases with temperature because sound travels faster in warmer air. At

40,0 feet, Mach I is 657 miles an hour.

► The Sound Barrier

Moving through the air, a plane makes pres­sure waves. When the plane catc hes up with its own pressure waves, they bunch together, building into a shock wave. Passing the speed of sound, the plane flies ahead of its pressure waves, forming a cone-like shock wave.

Подпись:
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Frank Whittle (1907-1996)

Frank Whittle was a young British pilot who patented the first turbojet engine in 1931. It used a jet of hot gases instead of propellers. Soon after, German engineer Hans von Ohain invented a similar engine Germany first produced a jet fighter in 1943, the Messerschmitt Me 262. A year later, the British began flying a jet fighter, the Gloster Meteor. Its engines were based on a Whittle design.

f Messerschmitt Me 262

The first jet-propelled fighter used in combat, the German Messerschmitt Me 262 Schwalbe (swallow) was flown during World War II. Four 30 mm cannons made it a fearsome opponent. This

Gliding Home

ETURNING to Earth, the shuttle orbiter is trans­formed from a spacecraft into a giant glider.

First, its maneuvering engine rockets fire a last time to slow it down to drop from orbit.

Reentering Earth’s atmosphere, it passes through scorch mg heat and tremendous friction. The thermal heat shield does its job well and protects the ship during the fiery journey. Next, computers guide the orbiter through a series of S turns to slow it down more. I he orbiter’s speed drops f rom over 17,000 miles an hour to about 350 miles an hour.

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The craft glides in silently. At about 20 miles from the runway, the mission commander takes control and brings it in lor a landing. The shuttle can also land automatically, if necessary. As the wheels touch down, the craft lands at between 200 and 226 miles an hour and slows to a stop. Then the astronauts exit the orbiter on ordinaiy

image247I Coming in to Land

Like a giant bird, the shuttle Columbia ghees unpowered to land at Kennedy Space Center. The commander aims carefully landing the craft. If it misses the runway, he cannot turn around to core Pack and try again.

і What a Drag

Once the shuttle’s wheels hit the runway, a parachute opens to slow the orbiter.

As the craft lands at over 200 miles an hour, the drag chute helps it gradually b^ake to a stop.

► Getting д Lift

The shuttle Atlantis is lifted in a machine to mount it on the back of з Boeing 747. With no power to fly through the atmosphere after it lands, the shuttle orbiter must be ferried by a 7<r back to its launch site.

► Piggyback Ride

Aboard a 747 ferry, the shuttle Atlantis returns to Florida after being repaired in California. Shuttles are used over and over, always launching from Kennedy Space Center n Florida.

today’s four space shuttles have all flown many times. Since the first mission in 1981, there have been over 100 shuttle flights.

HE largest object ever built in space, the Intern­ational Space Station (ISS) Floats in Earth orbit in an artist’s concept. Begun in 1998, it will sprawl twice the size ol a football held when complete. The ISS is being built jointly bv 16 nations, including the United States, Russia, Canada, countries of the European Space Agency, and Japan. It will cost about $60 billion.

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Already’ home to an American-Russian crew, the station has a roomy kitchen, bathroom, and sleeping and exercise areas. Omni solar panels convert energy From the Sun lor electric power. The station will provide an international center For many kinds ol scientific research. In its laboratories, scientists will study lile in space and test new medicines and materials lor use on Earth. One day, the ISS may also be the departure terminal For missions to other planets.

^ Outpost in Space

leveling 770 miles high over Fdrth, the International Space Station is shown as it will look when complete, around 2006.

A crew of 7 will live m a space as big as two 747 jet cabins. The size of two football fields, the station will weigh a million pounds.

Fun Fact: Big Job

More than 40 trips by space shuttle and other craft will be required to deliver the parts, supplies, and equipment needed to build the ISS.

Fun Fact: Speeded Up

 

Traveling more than 17,000 miles an hour, the ISS whips around the Earth 16 times a day. The crew on board see

 

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Подпись: gilding the ISSimage251Подпись:SOME 220 miles over Earth, the world’s highest

construction site bustles with activity and work is in lull swing. Workers move cranes hoisting huge building blocks. The giant structure going up is the International Space Station. The workers building it are astronauts.

The construction work will continue lor five years. The astronauts will spend many hours of spacewalks assembling the station. They will get help from a large robotic arm made in Camida and possibly a flying robotic “eye” that can circle around to inspect the huge station.

In the finished station, scientists believe the absence of gravity will allow them to do experiments not possible on Earth. They hope to develop new drugs, new ways to treat and prevent diseases, more powerful computer chips, stronger metals, and better weather forecasting systems. Life on the ISS will also provide knowledge for future space travel beyond Earth’s orbit.

Early Space Station

In May 2000, the first parts of the new ISS orbit Earth. The station at this stage has two sections, or modules. The first U. S. module, Unity (top), is joined to the Russian power and propulsion module, Zarya ("Sunrise").

Подпись:image252* All Systems Go

In this artist’s concept, a space shuttle has docked at the finished ISS. When complete, the station will be a busy center of scientific research, new discoveries, and exciting plans for future missions to explore space.

Korea and Vietnam

HE Korean War, from 1950 to 1953, was the first con­flict where jet fighters battled. The United States fought Communist forces in Korea. In the short time since World War II, jets had made propeller lighters obsolete. Faster speeds required pilots to react more quickly. The opposing planes could now close in over 10 miles in 30 seconds. The U. S. F-86 Sabre Jet and the Russian-built MiG-15 were the primary adversaries in Korea. Reaching speeds of nearly 670 miles an hour, the jets clashed in a famous zone known as "MiG Alley.”

From 1961 to 1973, the United States again fought Communist forces, this time in the Vietnam War. U. S. bombers dropped more tons of bombs in ill is war than both sides dropped in World. War II. I lehcopters played a critical role in Vietnam. Powerful helicopter gunships attacked the enemy and transported troops and supplies to the steamy jungle battle grounds. Helicopters also zoomed in to rescue wounded soldiers and downed pilots from behind enemy lines.

Checking It Out

Mechanics in Okinawa check a captured MiG-15 repainted with U. S. Air Force markings in 1953.Test pilots who flew this MiG said that overall, the F-86 was a better plane.

►Eject!

With jets’faster speed, pilots no longer bailed out. This Navy pilot springs from his plane in an ejection seat.

A parachute will open to land him safely on the ground.

image148► ► То the Rescue

The interior of the Sikorsky HH-3E helicopter (right) was a welcome sight to many U. S. fighter pilots in Vietnam.

Armed with heavy guns, the chopper flew in to rescue pilots downed in battle. It flew wounded men to base hospitals.

* Green Giant

Painted in olive green camouflage, the Sikorsky НИ ЗЕ was a large, powerful helicopter affectionately called the "Jolly Green Giant." A beacon of hope for stranded soldiers as well as pilots, it saved many lives in the war.

McDonnell F-t, Phantom II

Flying night reconnaissance, an F-4 Phantom II fighter crosses Vietnam in this painting. Able to race twice the speed of sound, the F-4 was a versatile plane. The first jet to find and destroy targets by radar without ground support, it excelled in dogfights with MiG-21 jets and also served as a bomber.

► Republic F-105D Thunderchief

Laden with bombs, two F-105D Thunderchief fighter-bombers head toward targets. The F-105D could carry over 12,000 pounds ofbombs. lt flew a large number of air strikes in Vietnam. As a fighter, it could deliver an amazing six thousand rounds of cannon fire per minute.

image149WARS over the last decades have greatly changed

and advanced military aircraft. The development of more sophisticated technology in radar, navigation, and weapons systems has produced faster, stronger, and more complex jet fighters and bombers.

Aircraft carriers have also changed. Jets are heavier than propeller aircraft. They require the boost of a catapult, like a giant slingshot, to launch them from the carrier deck. Carriers now have a catapult officer in charge of launching, called a “shooter.”

In a launch, a catapult hurls the plane from a standstill to a speed of 200 miles an hour in the air. Strong arresting cables on deck help the jets land safely. The jets have a tailhook to snag the cables as they kind.

Подпись:Modern carriers, up to 1,100 leet long, are like floating air bases. They may carry’ nearly’ 100 planes. These carrier-based aircraft have been active in conflicts and peacekeeping from Vietnam to the present.

* Aik BASt AT StA

Jet fighters fly m formation over the carrier USS John C. Stenrm, The big ship bristles with aircraft, including F-14 Tomcat and F-18 Hornet fighters,

S 3B Vikings, EA-6B Prowlers, and E -2C Hawkeye AWACS surveillance planes.

▼ Military Jets

An AV-88 Harrier"jump jet" (top) lifts straight up iri a vertical takeoff. Its jet nozzles can be directed to take of*, nover, or land like a helicopter or fly straight ahead. F-18 Hornet fighters (center) line an aircraft carrier deck. Bottom, a Hornet launches from the deck.

Подпись: я В

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Modern Fighters

TODAYS jet Fighters are among the fastest planes ever built. The F-16 Fighting Falcon, for example, can fly at more than twice the speed of sound. Alodern fighters use “fly by wire” flight. This means physical cables no longer pull on control surfaces su ch as the rudder. Instead, computers send signals along electric wires to motors that move control surfaces.

To increase speed, supersonic fighters today have streamlined bodies with pointed noses and swept-back or arrow-shaped wings. Some have ultra-thin wing edges to reduce drag and cut through air easily at high speeds. To withstand the scorching heat of supersonic speeds, the planes have "skins” of heat-resistant metals such as titanium.

Most fighters intercept and attack other aircraft. They may also attack ground targets. Pilots today locate targets electronically and fire deadly radar-guided or heat-seeking missiles. Modern fighters can cost up to $50 million each! MucJj of the cost is for electronic radar, flight, and navigation systems.

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► F-18 Hornet Research Fighter

image152image153image154This F-18 has been modified to test a new feature. Strakes, hinged structures on its nose, open to stabilize the jet as it dives at a steep angle of attack. They give the pilot better handling in an otherwise dangerous maneuver.

Fun Fact: Teamwork

 

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Подпись:A Lockheed F-117A Nighthawk

The first "stealth" plane in combat, the F-117A (above and left) flew in the Persian Gulf War in 1991. Its shape and special paint scatter radar beams to help it fly undetected. Hunting at night, the Nighthawk fires laser-guided missiles.

►Thunderbirds on Display

F-16 Thunderb! rds, the U. S.Air Force demonstration team, roar into a Diamond formation. A pilot’s view (below) shows how close the jets fly. Such maneuvers showcase both the pilots’precision and skill and the capabilities of the F-16.

4 A-10 Thunderbolt II

Sweeping down from the sky, an A-10 Thunderbolt II dives to attack. Designed to support ground troops, it can fly low and slow to destroy targets such as tanks with guns and missiles. The A-10 served in rescue missions during the GulfWar.

One recent design idea for a reusable spacecraft was the X-33, or VentureStar

Based on the "lifting body," it would lift off in an upright position, orbit, then return to Earth and land belly-down on a runway.

Another design was the X-37. It would be launched into orbit from the space shuttle. It would work in orbit, then return to Earth by its own power.

The X–43 was a plane designed to launch spacecraft into orbit. Known as the “Hyper X, th is plane would fly at "hypersonic" speeds, many times the speed of sound. A “scram-jet engine would allow it to use oxygen from the air to burn fuel, instead of using costly rocket fuel. The Hyper-X could launch craft into space at a tenth the cost of the rocket-propelled space shuttle. In coming years, scientists will continue research to develop new experimental concepts.

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4 Hyper-X

In this artist’s concept, the X-*3,or Hyper-X research plane, roars up towa’d the fringes of space. Such planes, resigned to fly many times tne speed of sound, may one day oe usee to launch vehicles into space orbit.

►x-33

The X-33, or VentureStar, flies in Earth orbit in this artist’s concept. It is one of many ideas for reusable vehicles to lower the cost of space travel. It would take off like a rocket, orbit, and land horizontally, like an arpiare.

Fun Fact: Split-Second Timing

The fastest "air-breathing," wingec aircra’t today, the SR-71 Blackbird, travels in soeeds measured in tens of miles-per-minute. Hypersonic p’a^es like the Hyper-X may travel in speeds of miles-per-second!

Подпись: IZI image256image257► Mother Ship

This art shows how the Hyper-X would be launched, riding on a rocket uncer the wing of a B-52. Dropped at 43,000 feet, the rocket would boost the Hyper-X to

100,0 feet, then fall off. The plane would fly on by its own power.

Testing, Testing

Scientist Vince Rausch holds a model Hyper-X mounted on a rocket in a wind tunnel. Wind-tunnel tests show such a plane could fly to Mach 10 to reach space. In an artist’s concept (right), a Pegasus rocket lifts a Hyper-X on its nose.

* X-37

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Подпись: l .. .

In this imaginary scene, the X-37 is ready for launch from the payload bay of a space shuttle, Aoout half the length of the shuttle, this craft would orbit up to 21 days, performing experiments. lt would then return to Earth on its own.

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Spy in the Sky

FOR years a top secret, the existence of military spy planes made world headlines in 1960 when one was captured. Francis Gary Powers, American pilot of a U-2 reconnaissance jet, was caught spying1 over the Soviet Union and shot down.

The U-2 was designed in the 1950s, during the Cold War between the United States and Soviet Union. It was a long-winged, glider-like plane with a panoramic camera. Flying at high altitudes, it took photographs to search for Soviet ballistic missiles.

In the 1960s, another spy plane, the Lockheed SR-~1 Blackbird, was introduced. It could fly even higher and laster than the U-2 and photograph 100,000 square miles. The first stealth plane, it had a flattened shape and dark coating that helped it elude radar.

Today, both planes still fly missions to monitor world hot spots. By giving warning of dangerous conflicts, they help world leaders plan strategies.

Plying High

The Lotkheed U-2 is a hfgh – a titude reconnaissance jet. Its 80-foot wingspan^ives it lift to fly o. e’ 73,00C”eet.’t first flew over the Soviet _"’or n :re 19501s to pHotograph missi e activity.

U-2 Camera

image157"7vs U-2 Нусог В came’ayow г the Museum, took retailed ground pictures of Cuba, ike the one at top center in the ‘960s/ney revealed Soviet missiles, which iec to the Cuban Missile Cr sis.

Подпись: * PILOT'S SEAT A maze of dials and controls surrounds the pilot in the SR-71 cockpit. When the craft rips through the sky at full speed, the windscreen gets so hot pilots cannot touch it long, even with heavy gloves. IL Some pilots use the screen to heat food!
Lockheed SR-71

This high-altitude spy plane flies faster than any other aircraft. It set a speed record of 2,193 miles an hour. Like the U-2, it takes reconnaissance photographs. The plane’s shape and dark color earned it the name "Blackbird."

B-2 Stealth Bomber

One of the most technically advanced of all aircraft, the B-2 Stealth Bomber has a flying wing design and sophisticated computer technology. Its shape and dark coating help it penetrate enemy defenses without detection. First test flown in 1989, it served in the conflict in the Balkans.

image158Global Hawk

This experimental unmanned aircraft was developed by the Air Force. Its mission is to give military commanders a high-altitude, long-endurance system to photograph large geographic areas.

Fun Fact: Speedy Spy Plane

The SR-71 can fly at altitudes of 90,000 feet and as fast as Mach 3.3. It has set several speed records, including a flight between Los Angeles, California and Washington, D. C. in just 64 minutes!

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JET power, first used in World War II, transformed the world of flight. With superior thrust, jet engines allowed planes to fly longer distances at higher speeds. In 1952, the First commercial jetliner, the British De I lavilland Comet, began service.

The Comet Hew 490 miles an hour, faster than any other passenger plane. Its 44 passen­gers traveled eight miles up in a comfortable pressurized cabin. Quiet jet engines made the ride smooth and relaxing. Yet in 1954, two Comets exploded in midair. The cause w as high-altitude stress on the plane’s metal body.

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Подпись: < AIR TRAFFIC CONTROL In the control tower at an airport, air traffic controllers track aircraft on radar screens. Each symbol on the screen indicates a plane's position in its flight path. Controllers communicate with pilots by radio to safely guide each plane. Подпись: ► INSIDE A JUMBO JET Flight attendants serve a meal to passengers on a Pan Am 747 in the 1970s. The new wide body of this jet allowed seating of 10 passengers in a row, up to 373 passengers in total.Today's 747 measures 231 feet long.lt holds 416 passengers and 57,000 gallons of fuel!

The next jet airliners were built with strong, pressure-resistant fuselages. I he American Boeing 707, introduced in 1957, was sale, fast, and comlortcible, with 145 seats. In 1969, Boeing built the lirst jumbo jet—the 747. I Ins became the world’s most successful jetliner. With a wide – body f uselage that can seat over 400, it lowered the cost of tur travel. Today, millions of people around the world have flown in the 747.

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< Boeing 707

Sleek and streamlined, the Boeing /07 was the first II. S.jet transport airliner. It measured 144 feet long, with a wingspan of 130 feet. Flying nearly 600 miles an hour, it cut previous travel time nearly in half.

▼ The President’s Plane

Air force One, a Boeing 747, soars majestically ovei Mount Rushrnore, South Dakota. This plane carries the President of the United States on business around the world. It has a special interior for the President.

Concorde

The Concorde, developed by the British and French, is the world’s only supersonic jetliner. It first flew in 1969. Able to fly over twice the speed of sound, it could whisk passengers across the Atlantic in three and a half hours. The crash of an Air France Concorde in 2000 resulted in the grounding of all Concordes for safety testing

Подпись: Helicopters
Подпись:image163NLIKE fixed-wing airplanes, helicopters have

whirling rotary wings, called rotors. Helicopters can fly forwards, backwards, sideways, straight up or down, and hover in one spot. The idea of the helicopter is very old. The ancient Chinese had a toy helicopter, called a “flying top.” Early designers, including Sir George Cayley, inventor of the glider, envisioned helicopters. Yet it was not until much later that real helicopters appeared. In 1907, Frenchman Paul Cornu built anti flew a helicopter m the lirst free flight. The double-rotor craft rose five feet olf the ground for 20 seconds.

Spy in the Sky
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The f li st practical single-rotor helicopters were invented by Igor Sikorsky in the 1950s. Since then, helicopters have performed many tasks other planes cannot. Because they can take off and land in small spaces and hover, helicopters serve as rescue craft, flying ambulances, lifting vehicles, and traffic observers. Modern helicopters range from small, light craft to heavy military gunships and transports.

Подпись: Vimage166image167"image168Подпись: I

Autogiro

Invented in 1925, the autogiro (top) was a combination of an airplane and a helicopter. It used a propeller to move forward, but a wind-blown rotor for lift. The craft could not hover, but could use its rotor to fly very slowly.

Helicopter Commuter

New York Airways, the "first Helicopter Airline," offered early commuter service in this 15-passenger Vertol 44B helicopter. lt flew day and night between Manhattan La Guardia and Newark Airports. It carried passengers, freight, and mail. The helicopter also flew sightseeing flights.

► Firefighter

A large helicopter calleo an aircrane loads

2,0 gallons of water by a hose from a lake. It will fly to a raging forest fire in California. Crew aboard will use the water to help battle the fire.

Helicopter Rescue Team

A U. S. Coast Guard helicopter hoists rescue swimmer Jason Shepard back aboard after a day of training. Helicopters with trained crew fly in to save people trapped on sinking ships or stranded at sea.

Mission to Mars

MARS, the red planet, has tascinated people lor centuries.

Since the 1960s, many have dreamed of exploring: and perhaps colonizing Mars. Earth’s neighbor in the solar system, Mars lies about 40 million miles away. About hall the size of Earth, it has many features similar to Earth’s. These include mountains, canyons, and polar ice caps. Yet Mars’ air is 100 times thinner than Earth’s and the planet is a freezing desert.

In 1976, two ’iking landers touched down on Mars and in 1997, Pathfinder landed. I hese craft sent back images that showed Mars to be rocky and arid. Yet scientists believe. Mars once had water that may have held microscopic life. In 2001, .Mars Odyssey was launched to orbit Mars. It v ill analyze. Mars’ surface and look for water underground. Such probes may pave the way for human explorers. A human mission to Mars would take about two years. The travelers would explore Mars for months, extracting Oxygen from Mars’ carbon dioxide atmosphere. They might find fossils, actual proof of other life in the universe.

No one knows what lies in the future. Yet, as the story of flight has shown, tomorrow will be exciting as dreams become reality.

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Parachute Landing

In this artist’s concept, a Mars landing module glides down from a spacecraft by parachute. After land ng, the astronauts would explore the planet by a rover vehicle and study its potential for supporting human life.

< Tales Told by Rocks

A mission specialist in geology examines a rock she has picked up on Mars. Scientists exploring the planet will look for clues to possible early life in rocks. If any life forms have existed, the best evidence would be found in fossils.

▼ Taking a Look

Iwo explorers stop their vehicle to get out and look at robot lander craft sent to Mars years before. No plans now exist for a human mission to Mars. Yet experts hope such a mission will take place perhaps in the next 20 years.

Fun Fact: Pure Fiction

In 1898, British author H. G Wells wrote the Worofthe Worlds, з novel about creatures from Mars invading Earth. ln 1938,the story was broadcast on radio. lt was so convincing, many believed the invasion was real1

Fun Fact: Sightseeing on Mars

Visitors to Mars will see remarkable things. Mars has a volcano three times taller than Mount Everest and a huge canyon. It is four times deeper and ten times longer than the Grand Canyon.

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RULE

[1] Bendix Trophy

One of the top racing prizes, the Bendix Trophy was first awarded in 1931.lt was given to the winner of the Bendix Transcontinental Race between Los Angeles and Cleveland.

[2] It’s a Car, It’s a Plane

Called the "Flying Car," a 1947 Convair Model 118 ConAirCar consisted of a two – seater car and an aircraft frame with a 180 horsepower engine. Designed for convenient personal use, it was meant to fly and drive. Unfortunately, it ran out of gas in flight and crashed.

[3] R-7 Rocket

The 100-foot-high Soviet R-7 rocket which launched Sputnik was the biggest rocket in existence at the time. At liftoff, its five powerful rocket engines generated about 900,000 pounds of thrust, 16 times as much as the V-2.

[4] Apollo 11 Launch

Seconds after ignition, Apollo 11 rises as a tower of flames pours from Saturn V’s engines. In 27. minutes, the first stage boosted the craft 35 miles above Earth, traveling 6,000 miles an hour. Then the second stage fired.

Orking Planes

О DAY, specialized aircraft perform a variety of

important jobs. Planes transport military troops, carry relief cargoes of food and medicine to people in disaster-hit areas, dust crops with chemicals to fight insect pests, fight fires, patrol large areas, and monitor weather conditions. In remote or wilderness regions, rugged bush planes are the only way doctors and other people can reach isolated outposts. In war zones, large transport aircraft move and drop thousands of military troops.

Some planes are small craft designed for fun, sport, and leisure flying. Each

Подпись: A PIPER CUB A flying classic, the Piper Cub J-3 was introduced in 1936.This two-seat light plane is now in the Museum. Cubs were used as trainers for military and private pilots and flown for recreation.The Cub's cruising speed was 80 miles an hour. Подпись: WEATHER AIRCRAFT A Weather Service DC-6 (top) has a long gust prooe and other instruments to gather weather data aloft.This helps forecasters predict weather systems. Above, visitors inspect an Orion P-З hurricane hunter plane, (t flies into the huge whirling storms to pinpoint their position and strength for hurricane forecasters in Miami. Symbo s on the plane's side indicate hurricanes the plane has tracked.

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▼ Bush Plane

A hunter poses with his game and a Noorduyn Norseman float plane he flew on a hunting trip in Canada. Bush planes carry hunters, wilderness explorers, and medical teams to remote spots no other transportation can reach. [2]

Water Bomber

Whoosh! A C-130 Hercules drops a load of water mixed with fire retardant chemicals over a forest fire in California. The versatile C-130 is also widely used as a military transport and cargo plane.

V Parachute Drop

Military paratroopers jump from a C-141B Starlifter during a training mission. The Starlifter transports combat troops over long distances. It delivers both soldiers and supplies and also carries wounded soldiers to hospitals.

л Airlift

Members of the 82nd Airborne Division wait to be airlifted by transport planes at Fort Bragg, North Carolina. Military planes can move many thousands of forces quickly to training stations or combat zones.

Odern Record Breakers

N the last few decades, aviators have continued to set new records. In 1977, American cyclist Bryan Allen used leg muscle to pedal the First human-powered aircraft, the Giwamer Connor A pedaling mechanism drove a propeller, powering the craft to 11 miles an hour. Alade of cardboard, aluminum, and plastic, the ultra­light plane weighed 207 pounds, including the pilot! In 1980, Allen pedaled (hwamcrАІЬаІгом over the English Channel.

In 1986, pilots Dick Rutan and Jeana Yeager set a milestone aviation record, Hying nonstop around the world without refueling. They made the trip in nine days in the Voyanir. Extra fuel tanks were built in the plane’s long, thin wings.

Finally in 1999, the Brcilliny Orbilcr J, a shiny silver-colored balloon, made the first round-the-world balloon trip. Swiss pilot Bertrand Piccard and British co-pilot Brian Jones flew’ for 30,000 miles, crossing mountains, deserts, and the Pacific and Atlantic Oceans.

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image174Gossamer Albatross

In 1980, cyclist Bryan Allen test flies the Gossamer Albatross, a human-powered craft operated by pedaling. Flown by Allen, the Gossamer Albatross won the Kremer Prize for human-powered flight when it crossed the English Channel.

* Brutling Orbiter )

Covered with a skin of silver mylar, the Breitling Orbiter 3 was fi1 ed with helium and hot air. The balloon’s gondola (below) held tanks of propane fuel, oxygen to breathe, and tinycrewquarters. lt is today displayed in the Museum.

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BITER

For no it war…eery emotional to feel the luck ice had ^ to fly around tbit f, І beautiful world. ” ^ / ,

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—Bertrand Piccard, co-pilot ; ,1

> Around the World in 20 Days

Breitling Orbiter 3 drifts over the Alps on its 30,000-mile journey around the globe in 1999.The long trip also set a balloon flight duration record of 19 days,

21 hours, and 55 minutes.

image175ROCKETS have been around For centuries. The

Chinese used gunpowder rockets as weapons as early as the 13th century. They filled pointed bamboo tubes with gunpowder, sealed one end and lit the other. The explosion created a thrust, or pushing force, that propelled the rocket the opposite way. Rockets were later fired in the War of 1812. Francis Scott Key described their "red glare in the "Star Spangled Banner.”

In the 20th century, scientists developed rockets to explore space. Rocket engines arc the only engines that can operate in the vacuum of space. In space there is no air, and so no oxygen. Rockets carry both fuel and their own oxygen supply, called an oxidizer. Large rockets can also produce tremendous power, enough to escape Fai th s gravity. In 1926, American scientist Dr. Robert Goddard launched the first liquid – propellant rocket. He concluded that a rocket could be more efficiently propelled by liquid fuel. In World War II, Germany built powerful rocket weapons. Then in 1957, the Soviet Union stunned the world by using a rocket to launch the first Earth-orbiting satellite, Sputnik.

+ < V-2’Vengeance Weapon"

One of Germany’s most frightening weapons, a V-2 rocket roars into the sky during World War II. The first long-range ballistic missile, it carried 2,000 pounds of explosives. Over 3,000 were fired at Britain and other targets.

H Ready for Launch

Germans prepare a V-2 for launching. Small by modern standards, the V-2 was 46 feet tall. The forerunner of later rockets, it could race 150 miles in five minutes and destroy whole city blocks.

Inside the V-2

The V-2 got its powerful thrust by burning alcohol using liquid oxygen. These were mixed and ignited in a combustion chamber, creating hot gases. As they expanded they burst from the rocket’s nozzle, forcing it upward. The V-2’s explosives were carried in its nose.

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Sputnik

On October 4,1957, a Soviet launched the first satellite. Sputnik ("Traveling Companion").A metal ball 23 inches across, it orbited Earth, sending "beep, beep" radio signals. A re Sputnik hangs in the Museum. [3]

Goddard щ Rocket

In 1941, Dr. Robert Goddard (top picture, left) examines one of his most advanced rockets as his assistants watch. This S^22-foot-high test rocket was fueled with gasoline and liquid oxygen. lt is today displayed in the National Air and Space Museum.

A 1935 A-3 Rocket

Three of Dr. Goddard’s assistants lift his liquid-fueled A-34ocket to fit it into a launch tower in Roswell, New Mexico. In the secluded southwest desert, Goddard tested many of his inventions.

Robert H. Goddard (1882-191,5)

Dr. Robert H. Goddard, inventor of the first flying liquid-propellant rocket, stands beside his creation. On March 16,1926, the Massachusetts physics professor launched the rocket from his aunt’s farm in Auburn, Massachusetts. Fueled with liquid oxygen and gasoline, it shot up 41 feet in 27: seconds oddard envisioned multi-stage rockets and using rockets to reach the Moon.

He is considered the father of American rocketry.

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Подпись:THE space age began with the launch of Sputnik in 1957. In 1959, the United States began testing a new aircraft. Sleek, streamlined, and rocket- powered, the North American X-15 was the fastest, highest-flying airplane ever built. Its purpose was to fly to the end of the atmosphere and up into the edge of space. It gathered information that was later of great use to engineers planning a U. S. space program.

The X-15 was made of a strong heat-resistant metal alloy to endure the heat of hypersonic (many times faster than sound) speeds. It was able to withstand 1,300 degrees Fahrenheit.

The X-15 flew to an incredible 354,200 feet, over 67 miles high, and reached a speed о f 4,520 miles an hour, or Mach 6.7. The pilot used air controls in the atmosphere and fired rocket thrusters to maneuver in space. I low did he know which controls to use? Test pilot Scott Crossfield said, “When one didn’t work, I simply used the other.”

► H2-F3 Lifting Body

image180Another experimental vehicle was a wingless aircraft called a "lifting body." Launched in mid-air from a B-52, the craft could fly about 17 miles high a: nearfy 1,240 miles an hour. This Northrop M2-F3 now hangs in the Museum.

Подпись: ■ *Подпись:Подпись:image181"Подпись: * SKY SIGNATURE Rocketing toward the Sun, the X-15 leaves a long plume of condensed vapor, a contrail, in the sky. Back on the ground (above), the X-15 gets a checkup as its B-52 mother plane flies overhead.The X-15 was the first plane to fly past Mach 6. Подпись: ■image182

* Astronaut Wings

Five pilots who flew the X-15 went so high they were awarded astronaut wings for space travel. Space is considered to begin at an altitude of 50 miles. The X-15 flew to over 67 miles.

►North American X-15

In 1967, this rocket-powered research plane reached the threshold of space. It flew to 354,200 feet, a record for winged craft that still stands. One of the three X-15s built now hangs in the National Air and Space Museum.