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Mission type | Test flight |
---|---|
Operator | Scaled Composites |
Mission duration | 24 minutes |
Distance travelled | 35 kilometers (22 mi) |
Apogee | 100.124 kilometers (62.214 mi) |
Spacecraft properties | |
Spacecraft | SpaceShipOne |
Manufacturer | Scaled Composites |
Launch mass | 3,600 kilograms (7,900 lb) |
Dry mass | 1,200 kilograms (2,600 lb) |
Crew | |
Crew size | 1 |
Members | Mike Melvill |
Callsign | SpaceShipOne |
Start of mission | |
Launch date | June 21, 2004, 14:50 UTC |
Launch site | White Knight, Mojave |
End of mission | |
Landing date | June 21, 2004, 15:14 UTC |
Landing site | Mojave |
Flight 15P of SpaceShipOne (X0) was the first privately funded human spaceflight. It took place on June 21, 2004. It was the fourth powered test flight of the Tier One program, with the previous three test flights reaching much lower altitudes. The flight carried only its pilot, Mike Melvill, who thus became the first non-governmental astronaut.
This flight was a full-altitude test, but not itself a competitive flight for the Ansari X Prize, the prize for the first non-governmental reusable crewed spacecraft. Problems were encountered during the flight but later corrected, paving the way for SpaceShipOne to make competitive flights later in 2004.
Position | Astronaut | |
---|---|---|
Pilot | Mike Melvill First spaceflight |
All times are in PDT, which is seven hours behind UTC. This was the local civil time at the spaceport on the day of the flight. All measurements are first stated in the U.S. customary units in which they were originally reported, with conversions to SI units also given.
Taxiing for takeoff from Mojave Spaceport was originally planned for 06:30, because the wind conditions in that area are most favorable in the early morning. Taxiing actually started at 06:37, and the flight took off at 06:47. After an ascent to 47,000 feet (14.3 km) coupled with the White Knight airplane, the SpaceShipOne craft separated at 07:50 and immediately ignited its rocket.
Shortly after ignition, at about 60,000 feet (18 km), the craft unexpectedly rolled 90 degrees to the left, due to wind shear. When the pilot attempted to correct it, it rolled 90 degrees to the right. The pilot leveled the craft out and proceeded with the climb. The correction of the roll excursion, using full trim, caused a pitch trim tab to run up against a stop. This caused the trim actuator, as designed, to stop operating for a 3 s timeout. Not realizing what had happened, the pilot and controllers interpreted this as a failure of the trim actuator, and they switched to a backup system. Spacecraft attitude was problematic during the entire climb, and not corrected until the start of re-entry.
During the burn, a new aerodynamic fairing installed around the rocket nozzle overheated, became too soft, and crumpled inwards. This caused a loud bang, which the pilot reported, but did not cause a flight problem.
The rocket burn lasted for 76 seconds. At burn-out the altitude was 180,000 feet (54.9 km), the Mach number was 2.9, and the speed was 2150 mph (3460 km/h; 961 m/s).
The planned apogee altitude was 360,000 feet (110 km), but due to the attitude problem encountered during the climb, the craft actually attained only 328,491 feet (100,124 m). In doing so, it passed the boundary to space at 100 km, making the flight, as planned, officially a spaceflight. It can be calculated that the altitude exceeded 100 km for approximately 10.23 s.
Around apogee the craft experienced about 31⁄2 minutes of weightlessness. Pilot Mike Melvill opened a bag of M&M's and watched them float around the capsule in free fall.
The craft re-entered the atmosphere 22 miles (35 km) south of its planned 5 by 5-mile (8 by 8 km) re-entry zone. The pilot finally corrected the spacecraft's altitude at this point, using a backup trim system. The craft reached Mach 2.9 and experienced deceleration of 5.0 ' g (49 m/s²) during descent. The craft switched to gliding configuration at an altitude of 57,000 feet (17.4 km), then returned to the spaceport and landed safely at 08:14.
Scaled Composites, the makers of SpaceShipOne, announced the planned spaceflight on June 2, 2004, and invited the public to watch. An estimated 11,000 people went to Mojave Spaceport to watch the flight, and millions more watched on television. Distinguished attendees included former astronaut Buzz Aldrin and the Commanding officer of Edwards Air Force Base.
Because SpaceShipOne launches to the east of Mojave Spaceport early in the morning, the crowd at the spaceport found themselves looking into the sun when watching the aircraft. Nevertheless, the crowd was exuberant, cheering every milestone in the flight, including the double sonic boom following the thrust phase. After SpaceShipOne landed, White Knight and the chase planes made celebratory passes over the runway. Mike Melvill displayed great excitement, waving to the crowd while standing on top of SpaceShipOne. He also held up a sign reading "SpaceShipOne, GovernmentZero," given to him by a spectator - an apparent reference to the then-ongoing suspension of Space Shuttle flight operations following the loss of the Space Shuttle Columbia during STS-107. Melvill was greeted by Buzz Aldrin, the second person to have walked on the Moon.
NASA administrator Sean O'Keefe issued a statement about the flight, saying:
We applaud the remarkable achievement of Burt Rutan, Paul Allen and test pilot Mike Melvill following the first successful suborbital flight of SpaceShipOne.
Not unlike the first U.S. and Soviet space travelers in 1961, and China's first successful spaceflight last October, these private citizens are pioneers in their own right. They are doing much to open the door to a new marketplace offering the experience of weightlessness and suborbital space flight to the public.
We congratulate the SpaceShipOne team and wish all those who may follow safe flights. [1]
The X Prize Foundation issued a press release about the flight:
We congratulate the entire Scaled Composites' team, in particular Burt Rutan and Mike Melvill for achieving this tremendous milestone. We also thank Paul Allen for his willingness to help open this critical, but risky frontier. The entire X PRIZE organization looks forward to receiving Scaled Composites' 60-day notice indicating they are ready to make their attempt to win the $10 million purse. Once such notice is received, we will make the information publicly available.
The Federal Aviation Administration presented Melvill with astronaut wings in a ceremony at 10:22, two hours after landing.
As intended, the flight exceeded the 100 km threshold required for the X PRIZE. However, the flight was not intended as an X PRIZE competitive flight and was not registered as such.
The flight did not carry any passengers, or equivalent ballast, as required for an X PRIZE flight, and so could not qualify as a competitive flight. Furthermore, the X PRIZE rules require a repeat flight within two weeks, which the Scaled Composites team had no intention of making.
Flight 15P was intended to be the final test flight before making the two X PRIZE flights later in 2004. Due to the problems encountered on this flight, an additional test flight might be needed. However, by July 7, 2004, Burt Rutan reported that the faults had been resolved and the next flights would be competitive.
Scaled Composites is an American aerospace company founded by Burt Rutan and currently owned by Northrop Grumman. It is located at the Mojave Air and Space Port in Mojave, California, United States. Founded to develop experimental aircraft, the company now focuses on designing and developing concept craft and prototype fabrication processes for aircraft and other vehicles. It is known for unconventional designs, for its use of non-metal, composite materials, and for winning the Ansari X Prize with its experimental spacecraft SpaceShipOne.
The Ansari X Prize was a space competition in which the X Prize Foundation offered a US$10,000,000 prize for the first non-government organization to launch a reusable crewed spacecraft into space twice within two weeks. It was modeled after early 20th-century aviation prizes, and aimed to spur development of low-cost spaceflight.
SpaceShipOne is an experimental air-launched rocket-powered aircraft with sub-orbital spaceflight capability at speeds of up to 3,000 ft/s (2,000 mph) / 910 m/s (3,300 km/h) using a hybrid rocket motor. The design features a unique "feathering" atmospheric reentry system where the rear half of the wing and the twin tail booms folds 70 degrees upward along a hinge running the length of the wing; this increases drag while retaining stability. SpaceShipOne completed the first crewed private spaceflight in 2004. That same year, it won the US$10 million Ansari X Prize and was immediately retired from active service. Its mother ship was named "White Knight". Both craft were developed and flown by Mojave Aerospace Ventures, which was a joint venture between Paul Allen and Scaled Composites, Burt Rutan's aviation company. Allen provided the funding of approximately US$25 million.
Elbert Leander "Burt" Rutan is a retired American aerospace engineer and entrepreneur noted for his originality in designing light, strong, unusual-looking, and energy-efficient air and space craft. He designed the record-breaking Voyager, which in 1986 was the first plane to fly around the world without stopping or refueling. He also designed the Virgin Atlantic GlobalFlyer, which in 2006 set the world record for the fastest and longest nonstop non-refueled circumnavigation flight in history. In 2004, Rutan's sub-orbital spaceplane design SpaceShipOne became the first privately funded spacecraft to enter the realm of space, winning the Ansari X-Prize that year for achieving the feat twice within a two-week period.
The Scaled Composites Model 318 White Knight is a jet-powered carrier aircraft that was used to launch its companion SpaceShipOne, an experimental spaceplane. The White Knight and SpaceShipOne were designed by Burt Rutan and manufactured by Scaled Composites, a private company founded by Rutan in 1982. On three separate flights in 2004, White Knight conducted SpaceShipOne into flight, and SpaceShipOne then performed a sub-orbital spaceflight, becoming the first private craft to reach space.
Peter Siebold is a member of the Scaled Composites astronaut team. He is their Director of Flight Operations, and was one of the test pilots for SpaceShipOne and SpaceShipTwo, the experimental spaceplanes developed by the company. On April 8, 2004, Siebold piloted the second powered test flight of SpaceShipOne, flight 13P, which reached a top speed of Mach 1.6 and an altitude of 32.0 kilometres (105,000 ft). On October 31, 2014, Siebold and Michael Alsbury were piloting the SpaceShipTwo VSS Enterprise on flight PF04, when the craft came apart in mid-air and then crashed, killing Alsbury and injuring Siebold.
Michael Winston Melvill is a world-record-breaking pilot and one of the test pilots for SpaceShipOne, the experimental spaceplane developed by Scaled Composites. Melvill piloted SpaceShipOne on its first flight past the edge of space, flight 15P on June 21, 2004, thus becoming the first commercial astronaut, and the 435th person to go into space. He was also the pilot on SpaceShipOne's flight 16P, the first competitive flight in the Ansari X Prize competition.
The Mojave Air and Space Port at Rutan Field is in Mojave, California, United States, at an elevation of 2,801 feet (854 m). It is the first facility to be licensed in the United States for horizontal launches of reusable spacecraft, being certified as a spaceport by the Federal Aviation Administration on June 17, 2004. The facility covers 2,998 acres and has three runways.
Tier One was a Scaled Composites' 1990s–2004 program of suborbital human spaceflight using the reusable spacecraft SpaceShipOne and its launcher White Knight. The craft was designed by Burt Rutan, and the project was funded 20 million US Dollars by Paul Allen. In 2004 it made the first privately funded human spaceflight and won the 10 million US Dollars Ansari X Prize for the first non-governmental reusable crewed spacecraft.
Flight 11P of SpaceShipOne was its eighth independent flight, its first powered flight, and the first privately funded crewed flight to reach supersonic speeds. It occurred on December 17, 2003.
Flight 16P of SpaceShipOne was a spaceflight in the Tier One program that took place on September 29, 2004. It was the first competitive flight in the Ansari X PRIZE competition to demonstrate a non-governmental reusable crewed spacecraft, and is hence also referred to as the X1 flight. A serious roll excursion occurred during boost, so the flight did not achieve the expected altitude. However, it exceeded 100 km altitude, making it a successful X PRIZE flight.
Flight 17P of SpaceShipOne was a spaceflight in the Tier One program that took place on October 4, 2004. It was the second competitive flight in the Ansari X Prize competition to demonstrate a non-governmental reusable crewed spacecraft, and is hence also referred to as the X2 flight. It was a successful flight, winning the X PRIZE.
Virgin Galactic Holdings, Inc. is a British-American spaceflight company founded by Richard Branson and the Virgin Group conglomerate which retains an 11.9% stake through Virgin Investments Limited. It is headquartered in California, and operates from New Mexico. The company develops commercial spacecraft and provides suborbital spaceflights to space tourists. Virgin Galactic's suborbital spacecraft are air launched from beneath a carrier airplane known as White Knight Two. Virgin Galactic's maiden spaceflight occurred in 2018 with its VSS Unity spaceship. Branson had originally hoped to see a maiden spaceflight by 2010, but the date was delayed for several years, after some time then was delayed again, primarily due to the October 2014 crash of VSS Enterprise.
The Scaled Composites Model 281 Proteus is a tandem-wing high-altitude long-endurance aircraft designed by Burt Rutan to investigate the use of aircraft as high-altitude telecommunications relays. The Proteus is a multi-mission vehicle able to carry various payloads on a ventral pylon. The Proteus has an extremely efficient design and can orbit a point at over 19,800 m for more than 18 hours. It is currently owned by Northrop Grumman.
VSS Enterprise was the first SpaceShipTwo (SS2) spaceplane, built by Scaled Composites for Virgin Galactic. As of 2004, it was planned to be the first of five commercial suborbital SS2 spacecraft planned by Virgin Galactic. It was also the first ship of the Scaled Composites Model 339 SpaceShipTwo class, based on upscaling the design of record-breaking SpaceShipOne.
The Scaled Composites Model 339 SpaceShipTwo (SS2) is an air-launched suborbital spaceplane type designed for space tourism. It is manufactured by The Spaceship Company, a California-based company owned by Virgin Galactic.
Stuart O. Witt is the Founder and Owner of S.O. Witt & Associates, LLC. Witt is the former CEO of Mojave Air and Space Port and a member of the National Space Council Users Advisory Group.
VP-03 was a sub-orbital spaceflight of the SpaceShipTwo-class VSS Unity which took place on 13 December 2018, piloted by Mark P. Stucky and co-piloted by Frederick W. "CJ" Sturckow.
Mark P. "Forger" Stucky is an American test pilot and commercial astronaut. In these roles, he was an employee of Virgin Galactic, a private spaceflight company which is developing sub-orbital space tourism flights.