Flight 14P of
SpaceShipOne
SpaceShipOne is an experimental air-launched rocket-powered aircraft with sub-orbital spaceflight capability at speeds of up to 3,000 ft/s (900 m/s, 3240 km/h), using a hybrid rocket motor. The design features a unique "feathering" a ...
was its third powered flight, which occurred on May 13, 2004. The
pilot
An aircraft pilot or aviator is a person who controls the flight of an aircraft by operating its directional flight controls. Some other aircrew members, such as navigators or flight engineers, are also considered aviators, because they a ...
was
Mike Melvill
Michael Winston Melvill (born November 30, 1940 in Johannesburg, South Africa) is a world-record-breaking pilot and one of the test pilots for SpaceShipOne, the experimental spaceplane developed by Scaled Composites. Melvill piloted SpaceShipO ...
.
Details
SpaceShipOne was released from
White Knight
A white knight is a mythological figure and literary stock character. They are portrayed alongside a black knight as diametric opposites. A white knight usually represents a heroic warrior fighting against evil, with the role in medieval literatu ...
at an altitude of and a speed of 120
knot
A knot is an intentional complication in cordage which may be practical or decorative, or both. Practical knots are classified by function, including hitches, bends, loop knots, and splices: a ''hitch'' fastens a rope to another object; a ' ...
s (62
m/s). After ten seconds the rocket was lit, for a 55
second
The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds ...
burn.
At burn-out the altitude was and the
Mach number
Mach number (M or Ma) (; ) is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a boundary to the local speed of sound.
It is named after the Moravian physicist and philosopher Ernst Mach.
: \mathrm = \frac ...
was 2.5. The craft then coasted to an
apogee
An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. For example, the apsides of the Earth are called the aphelion and perihelion.
General description
There are two apsides in any ellip ...
altitude of .
At one point during the flight, the
avionics
Avionics (a blend word, blend of ''aviation'' and ''electronics'') are the Electronics, electronic systems used on aircraft. Avionic systems include communications, Air navigation, navigation, the display and management of multiple systems, ...
computer froze up and had to be rebooted. Melvill flew the aircraft manually until the computer became operable again.
During reentry, the craft attained Mach 1.9 and deceleration of 3.5
''g'' (34 m/s²). The craft switched to glider configuration at 55,000 feet (17.4 km). The craft returned to the
spaceport
A spaceport or cosmodrome is a site for launching or receiving spacecraft, by analogy to a seaport for ships or an airport for aircraft. The word ''spaceport'', and even more so ''cosmodrome'', has traditionally been used for sites capable ...
and landed safely.
External links
SpaceShipOne video footage(RealVideo)
{{Scaled Composites
SpaceShipOne
Scaled Composites Tier One program
2004 in spaceflight