Zenit-3F

FunctionCarrier rocket

ManufacturerYuzhmash

Country of originUkraine

Size

Height59.6 m (196 ft)

Diameter3.9 m (13 ft)

Mass471,000 kg (1,038,000 lb)

Stages3

Capacity

Payload to GTO

Mass4,000 kg (8,800 lb)

Associated rockets

FamilyZenit

Launch history

StatusRetired

Launch sitesBaikonur, Site 45/1

First flight20 January 2011 (Elektro-L No.1)

Last flight26 December 2017 (AngoSat 1)

First stage – Zenit-2SB first stage

Height32.9 m (108 ft)

Diameter3.9 m (13 ft)

Empty mass27,564 kg (60,768 lb)

Gross mass354,350 kg (781,210 lb)

Propellant massRG-1: 90,219 kg (198,899 lb) LOX:236,567 kg (521,541 lb)

Powered by1 × RD-171

Maximum thrustSL: 7,257 kN (1,631,000 lbf) vac: 7,908 kN (1,778,000 lbf)

Specific impulseSL: 309.5 s (3.035 km/s) vac: 337.2 s (3.307 km/s)

Burn time140–150 seconds

PropellantLOX/RG-1

Second stage – Zenit-2SB second stage

Height10.4 m (34 ft)

Diameter3.9 m (13 ft)

Empty mass8,307 kg (18,314 lb)

Gross mass90,794 kg (200,167 lb)

Propellant massRG-1: 23,056 kg (50,830 lb) LOX:59,431 kg (131,023 lb)

Powered by1 × RD-120 1 × RD-8

Maximum thrustRD-120: 912 kN (205,000 lbf) RD-8: 79.4 kN (17,800 lbf)

Specific impulseRD-120: 350 s (3.4 km/s) RD-8: 342.8 s (3.362 km/s)

Burn time360–370 seconds

PropellantLOX / RG-1

Third stage – Fregat-SB

Powered by1 × S5.92

Maximum thrust19.6 kN (4,400 lbf)

Specific impulse327 s (3.21 km/s)

Burn time877 seconds

PropellantN2O4 / UDMH

The Zenit-3F, Zenit-3SLBF or Zenit-2SB/Fregat was an expendable carrier rocket. It was a member of the Zenit family of rockets, which were designed by Yuzhnoye Design Bureau of Ukraine.

Launches of Zenit-3SLBF rockets were conducted from Baikonur Cosmodrome Site 45/1. The rocket consisted of a Zenit-2SB (Zenit-2M) core vehicle, with a Fregat-SB upper stage, developed by NPO Lavochkin of Russia, in place of the Block-DM used on the Zenit-3SL and 3SLB.

The first launch of a Zenit-3F took place on 20 January 2011. The payload was an Elektro-L new generation weather satellite. A Zenit-3F was also used to successfully launch the Spektr-R radio astronomy satellite on 18 July 2011.

Launches

Flight No.	Date and time (UTC)	Payload	Orbit	Outcome
1	20 January 2011 12:29	Elektro-L No.1	GEO	Success
2	18 July 2011 02:31	Spektr-R	HEO	Success
3	11 December 2015 13:45	Elektro-L No.2	GEO	Success
4	26 December 2017 19:00	AngoSat 1	GEO	Success
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