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Vostok-2 (rocket)

Soviet rocket

Field	Value
name	Vostok-2 (8A92)
image	Vostok 8A92.svg
caption	Vostok-2 rocket
upright	0.4
function	Small-lift launch vehicle
manufacturer	OKB-1
country-origin	Soviet Union
height	NNNN m
diameter	NNNN m
mass	NNNN kg
stages	3
capacities	{{Infobox rocket/payload
location	LEO
kilos	4730 kg
family	R-7
derivatives	Vostok-2M
status	Retired
sites	{{Indented plainlist
launches	45
success	38
fail	5
partial	2
first	1 June 1962
last	12 May 1967
payloads	Zenit
stagedata	{{Infobox Rocket/Stage
type	booster
diff	First stage
name	Block B, V, G & D
number	4
engines	1×RD-107-8D74K
thrust	995.3 kN
total	{{#expr:995.3*4}} kN
SI
burntime	118 seconds
fuel	LOX/RP-1
stageno	Second
type	stage
diff	core
name	Block A
engines	1×RD-108-8D75K
thrust	940 kN
SI
burntime	301 seconds
fuel	LOX/RP-1
stageno	Third
type	stage
engines	1×RD-0109
thrust	54.5 kN
SI	326 isp
burntime	365 seconds
fuel	LOX/RP-1

|country-origin = Soviet Union

Baikonur, Sites 1/5 & 31/6
Plesetsk, Site 41/1

Vostok-2 (, GRAU index: 8A92) was an expendable carrier rocket used by the Soviet Union between 1962 and 1967. Forty five were launched, of which five failed. It was derived from the earlier Vostok-K, with uprated engines. It was a member of the Vostok family of rockets.

The Vostok-2 switched to the newer 8K74 core and featured the 8D74K first stage engines from the Molniya 8K78 booster which gave it improved performance over the older Vostok 8K72K.

The Vostok-2 made its maiden flight on 1 June 1962, from Site 1/5 at the Baikonur Cosmodrome. One of the booster engines shut down 1.8 seconds after launch, and the rocket came down 300 m away from the pad. The resulting explosion damaged the launch complex, and necessitated delays to several other launches that had been scheduled from that complex, including Vostok 3 and Vostok 4. Thirteen months later, on 10 July 1963, an almost identical failure occurred. The other three failures were caused by a second stage malfunction, a second stage guidance problem, and a problem with the first stage.

The Vostok-2 was used exclusively to launch Zenit-2 reconnaissance satellites. Launches occurred from sites 1/5 and 31/6 at Baikonur, and Site 41/1 at Plesetsk. In 1967, it was retired in favour of the Voskhod due to the growing mass and complexity of the Zenit satellites.

Launches

Vostok-2 was launched forty five times.

Date	Serial No.	Site	Payload
1 June 1962	E15000-01	Baikonur LC-1/5	Kosmos (6) (Zenit-2 #3)
28 July 1962	T15000-07	Baikonur LC-1/5	Kosmos 7 (Sputnik 17) (Zenit-2 #4)
27 September 1962	T15000-06	Baikonur LC-1/5	Kosmos 9 (Zenit-2 #5)
17 October 1962	T15000-03	Baikonur LC-1/5	Kosmos 10 (Zenit-2 #6)
22 December 1962	T15000-10	Baikonur LC-1/5	Kosmos 12 (Zenit-2 #7)
21 March 1963	T15000-01	Baikonur LC-1/5	Kosmos 13 (Zenit-2 #8)
22 April 1963	T15000-08	Baikonur LC-1/5	Kosmos 15 (Zenit-2 #9)
28 April 1963	E15000-02	Baikonur LC-1/5	Kosmos 16 (Zenit-2 #10)
24 May 1963	E15000-12	Baikonur LC-1/5	Kosmos 18 (Zenit-2 #11)
10 July 1963	E15000-04	Baikonur LC-1/5	Kosmos (19b) (Zenit-2 #12)
18 October 1963	G15001-01	Baikonur LC-1/5	Kosmos 20 (Zenit-2 #13)
28 November 1963	G15001-02	Baikonur LC-1/5	Kosmos (23) (Zenit-2 #14)
19 December 1963	G15001-03	Baikonur LC-1/5	Kosmos 24 (Zenit-2 #15)
4 April 1964	G15001-04	Baikonur LC-31/6	Kosmos 28 (Zenit-2 #16)
25 April 1964	R15001-01	Baikonur LC-31/6	Kosmos 29 (Zenit-2 #17)
10 June 1964	R15001-02	Baikonur LC-31/6	Kosmos 32 (Zenit-2 #18)
23 June 1964	G15001-05	Baikonur LC-31/6	Kosmos 33 (Zenit-2 #19)
15 July 1964	R15001-03	Baikonur LC-31/6	Kosmos 35 (Zenit-2 #20)
14 August 1964	R15001-04	Baikonur LC-31/6	Kosmos 37 (Zenit-2 #21)
24 September 1964	R15001-05	Baikonur LC-31/6	Kosmos 46 (Zenit-2 #22)
14 October 1964	R15002-01	Baikonur LC-31/6	Kosmos 48 (Zenit-2 #23)
28 October 1964	R15002-02	Baikonur LC-31/6	Kosmos 50 (Zenit-2 #24)
11 January 1965	R15002-03	Baikonur LC-31/6	Kosmos 52 (Zenit-2 #25)
25 March 1965	G15001-06	Baikonur LC-31/6	Kosmos 64 (Zenit-2 #26)
7 May 1965	R15002-04	Baikonur LC-31/6	Kosmos 66 (Zenit-2 #27)
15 June 1965	U15001-01	Baikonur LC-31/6	Kosmos 68 (Zenit-2 #28)
13 July 1965	R15002-05	Baikonur LC-31/6	Kosmos (71) (Zenit-2 #29)
14 August 1965	U15001-02	Baikonur LC-31/6	Kosmos 78 (Zenit-2 #30)
27 November 1965	U15001-05	Baikonur LC-31/6	Kosmos 98 (Zenit-2 #31)
10 December 1965	U15001-04	Baikonur LC-31/6	Kosmos 99 (Zenit-2 #32)
7 January 1966	U15001-08	Baikonur LC-31/6	Kosmos 104 (Zenit-2 #33)
22 January 1966	U15001-10	Baikonur LC-31/6	Kosmos 105 (Zenit-2 #34)
10 February 1966	U15001-06	Baikonur LC-31/6	Kosmos 107 (Zenit-2 #35)
17 March 1966	U15001-09	Plesetsk LC-41/1	Kosmos 112 (Zenit-2 #36)
20 April 1966	U15001-07	Baikonur LC-31/6	Kosmos 115 (Zenit-2 #37)
6 May 1966	N15001-01	Baikonur LC-31/6	Kosmos 117 (Zenit-2 #38)
16 September 1966	N15001-02	Baikonur LC-31/6	Kosmos (129) (Zenit-2 #41)
14 October 1966	U15001-05	Plesetsk LC-41/1	Kosmos 129 (Zenit-2 #42)
19 November 1966	N15001-08	Baikonur LC-31/6	Kosmos 132 (Zenit-2 #43)
19 December 1966	N15001-09	Plesetsk LC-41/1	Kosmos 136 (Zenit-2 #44)
19 January 1967	N15001-05	Plesetsk LC-41/1	Kosmos 138 (Zenit-2 #45)
27 February 1967	U15001-03	Baikonur LC-1/5	Kosmos 143 (Zenit-2 #46)
13 March 1967	N15001-06	Plesetsk LC-41/1	Kosmos 147 (Zenit-2 #47)
4 April 1967	Ya15001-06	Plesetsk LC-41/1	Kosmos 153 (Zenit-2 #48)
12 May 1967	Ya15001-02	Baikonur LC-1/5	Kosmos 157 (Zenit-2 #49)

Notes

References

"Vostok-2 (8A92)".
Wade, Mark. "Soyuz". Encyclopedia Astronautica.
"Vostok".

Info: Wikipedia Source

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