The Ariane 4 is a family of six medium to heavy
lift launch vehicles. The Ariane 4 family builds upon a three stage liquid core
vehicle, the Ariane 40. The Ariane 42P adds two solid strap-on motors while the
Ariane 42L adds two liquid strap-on boosters. The Ariane 44P and Ariane 44L use four
solid and liquid boosters respectively. The Ariane 44LP uses two solid and two
liquid strap on boosters. The most powerful Ariane 4 variant, the Ariane 44L, can
place more than 10,000 lb into a GTO orbit.
Since its inaugural flight in
June 1988, the Ariane 4 has captured nearly 50% of the commercial GTO market.
Currently, the Ariane 4 is being phased out in favor of the Ariane 5 launcher.
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