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 "Soyuz-U Ikar" Space booster.
(Western designation SL-4).
"Soyuz-U-Ikar" is the version of "Soyuz-U" booster with new upper stage "Ikar". This upper stage was design for Russian-French Join Stock Company "Starsem" especially for launching "Globalstar" satellites.
First launch was conducted February 9th, 1999. Until November 22nd, 1999 year there were 6 launches and no accidents.
Specification.
Launch weight....................................................304,000 kg
Thrust................................................................411,100 kg
Length........................................................................45 m
Diameter of cluster....................................................10,3 m
Payload weight
Low Earth Orbit..................................................... 7,050 kg
Propellant
Three stages...................................................kerosene+O2
upper stage........................................................UDMH+NO
Stage 1........................................................ engine RD-117
Stage 2........................................................ engine RD-118
Stage 3........................................................ engine RD-110
Upper stage................................................... engine 17D61
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