Voskhod rocket

Infobox rocket
name =Voskhod (R-7 11A57)

---

imsize = 150
caption =Voskhod rocket
function =Man-rated LEO carrier rocket
manufacturer =OKB-1
country-origin = Soviet Union
height =30.84 m
alt-height =101.18 ft
diameter =2.99 m
alt-diameter =9.8 ft
mass = 298,400 kg
alt-mass =657,800 lb
stages = 2
LEO-payload = 5,900 kg
alt-LEO = 13,000 lb
status = Retired
sites = LC-1 & LC-31, Baikonur
LC-41, Plesetsk
first=16 November 1963
last=29 June 1976
launches =300
success =287
fail =13
boosters =4
boosterengines =1 RD-107-8D74K
boosterthrust =995.3 kN
alt-boosterthrust =223,752 lb_f
boosterSI =257 sec
boostertime =119 seconds
boosterfuel =RP-1/LOX
stage1engines =1 RD-0108
stage1thrust =294 kN
alt-stage1thrust =66,093 lb_f
stage1SI =330 sec
stage1time =240 seconds
stage1fuel = RP-1/LOX
stage2engines =1 RD-107-8D75K
stage2thrust =941 kN
alt-stage2thrust =221,500 lb_f
stage2SI =248 sec
stage2time =301 seconds
stage2fuel = RP-1/LOX

The Voskhod rocket (Russian: Восход, translated as "Sunrise") was a derivative of the Soviet R-7 ICBM designed for the human spaceflight programme but later used for launching Zenit reconnaissance satellites. It combined the R-7 with an upper stage that had been originally designed to launch interplanetary probes.

There was only one main variant of the Voskhod, designated 11A57. Between 1963 and 1976 it was used for some 300 launches.

Voskhod 11A57

*Stage Number: 0 - Strap-on boosters; 4 x Voskhod 11A57-0
**Gross Mass: 43,400 kg
**Empty Mass: 3,800 kg.
**Thrust (vac): 4 x 995.4 kN = 3,981.5 kN
**Isp: 314 s (3.08 kN·s/kg)
**Burn time: 119 s
**Isp(sl): 257 s (2.52 kN·s/kg)
**Diameter: 2.68 m
**Span: 8 m
**Length: 19.00 m
**Propellants: Lox/Kerosene
**Engines: 4 x RD-107-8D74K

*Stage Number: 1 - Core stage; 1 x Voskhod 11A57-1
**Gross Mass: 100,500 kg
**Empty Mass: 6,800 kg
**Thrust (vac): 941.4 kN
**Isp: 315 s (3.09 kN·s/kg)
**Burn time: 301 s
**Isp(sl): 248 s (2.43 kN·s/kg)
**Diameter: 2.99 m
**Span: 2.60 m
**Length: 28.00 m
**Propellants: Lox/Kerosene
**Engine: 1 x RD-108-8D75K

*Stage Number: 2 - Final Stage; 1 x Voskhod 11A57-2
**Gross Mass: 24,300 kg
**Empty Mass: 2,000 kg
**Thrust (vac): 294.2 kN
**Isp: 330 s (3.24 kN·s/kg)
**Burn time: 240 s
**Diameter: 2.56 m
**Length: 2.84 m
**Propellants: Lox/Kerosene
**Engine: 1 x RD-0108

See also

* Voskhod programme