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Falcon-IX |
Space Exploration Technologies Corporation
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Cape Canaveral, June 04, 2010 -- The first SpaceX Falcon 9 two-stage rocket
launched from Space Launch Complex 40. The rocket carried a Dragon spacecraft
simulator toward a planned 250 km x 34.4 deg low earth orbit.
Cape Canaveral, December 08, 2010 -- The second SpaceX Falcon 9 two-stage
rocket launched successful from Space Launch Complex 40. The rocket carried
the first active Dragon spacecraft for testing. From a mission control center
in southern California, SpaceX teams tested guidance, propulsion and communications
systems. The capsule completed nearly two trips around the earth. Then, four thrusters
began a six-minute firing to begin the Dragon's drop from space. SpaceX confirmed
that parachutes had deployed and a successful splashdown, which was targeted for
500 miles west of the U.S-Mexican border.
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Falcon-IX
Falcon -IX is a two stage, liquid oxygen
and rocket grade kerosene (RP-1) powered launch vehicle. It uses the same engines,
structural architecture (with a wider diameter), avionics and launch system.
First Stage. The Falcon -IX tank walls and domes are made from aluminum 2219,
the same alloy used by the Saturn V. However, SpaceX make use of an all friction
stir welded tank, the highest strength and most reliable welding technique available.
Like Falcon -I, the interstage, which connects the upper and lower stage for Falcon
IX, is a carbon fiber honeycomb structure. The separation system is a larger version
of what was used on Falcon -I – pneumatic pushers with pyrotechnic release bolts.
Nine SpaceX Merlin-1C engines power the Falcon -IX first stage with 125 lbs-f sea
level thrust per engine for a total vacuum thrust of 1.245,600 pounds. After engine
start, Falcon is held down until all vehicle systems are verified to be functioning
normally before release for liftoff. Although in-flight failures are very rarely
explosive, a Kevlar shield protects each engine from debris in the event of its
neighbour failing.
Second Stage. The second stage tank of Falcon-IX is simply a shorter version
of the first stage tank and uses most of the same tooling, material and manufacturing
techniques. This results in significant cost savings in vehicle production.
A single Merlin-1V engine with longer nozzle powers the Falcon -IX upper stage with
an expansion ratio of 177 and burn time of 354 seconds. For added reliability of
restart, the engine has dual redundant hypergolic igniters (TEA-TEB) with four injection
ports.
The initial flights of the Falcon-IX, currently planned in 2010, use the Falcon-IX Block 1. Beginning in 2011, SpaceX will begin launching the Falcon-IX Block 2. Block 2 features increased engine thrust, decreased launch vehicle dry mass, and increased propellant load-combined with lessons from the flights of the Falcon-IX Block 1.
| Falcon-IX Block 2 | |
| Length | 54.86 m (180 ft) |
| Width | 3.66 m (12 ft) |
| Thrust lift-off (s.l.) | 5.004 kN (1.125,000 lb) |
| Thrust lift-off (vac) | 5.541 kN (1.245,650 lb) |
| Engines | Merlin-1C+ (9) / Merlin-1V (long nozzle) |
The Falcon-IX is offered both with a 3.6 m fairing or a 5.2 m fairing.
Planned launch site is Cape Canaveral launch pad (SLC-40) for low inclination launches.
The Falcon-IX will also lift the Dragon space capsule for ISS cargo flights, which might be developed
into a manned spacecraft.
The Falcon-IX Heavy will be SpaceX’s entry into the heavy lift launch vehicle category. Capable of lifting over 28,000 kg to LEO, and over 12,000 kg to GTO, the Falcon-IX Heavy will compete with the largest commercial launchers now available. It consists of a standard Falcon-IX with two additional Falcon-IX first stages acting as liquid strap-on boosters. With the Falcon-IX first stage already designed to support the additional loads of this configuration and with common tanking and engines across both vehicles, development and operation of the Falcon-IX Heavy will be highly cost-effective. Initial architectural work has already begun.