Irtysh (rocket)

Irtysh
Soyuz-5 (on the right)
FunctionOrbital Launch Vehicle
ManufacturerJSC SRC Progress
RKK Energia
Country of originRussia
Project cost61.2 ₽ billion
Size
Height61.9 m (203 ft) (uncrewed)
65.9 m (216 ft) (crewed)
Diameter4.1 m (13 ft)
Mass530,000 kg (1,170,000 lb)
Stages3
Capacity
Payload to LEO
Mass18,000 kg (uncrewed)
15,500 kg (crewed)
Payload to GTO
Mass5,000 kg (11,000 lb)
Associated rockets
ComparableZenit-2, Proton-M, Falcon 9, Falcon Heavy, Atlas V 541, Ariane 5 ES, H-IIB, Long March 5
Launch history
StatusIn development
Launch sitesBaikonur Baiterek
First flight2025 (planned)[1]
First stage
Height37.14 m (121.9 ft)
Diameter4.1 m (13 ft)
Empty mass27,700 kg (61,100 lb)
Propellant mass363,000 kg (800,000 lb)
Powered byRD-171MV
Maximum thrust7,257 kN (1,631,000 lbf)
Specific impulse309 seconds (3.03 km/s)
PropellantRP-1/LOX
Second stage
Height7.77 m (25.5 ft)
Diameter4.1 m (13 ft)
Empty mass5,900 kg (13,000 lb)
Propellant mass59,000 kg (130,000 lb)
Powered by2 × RD-0124MS
Maximum thrust294.3 kN (66,200 lbf)
Specific impulse359 seconds (3.52 km/s)
PropellantRP-1/LOX
Third stage – Blok DM-03 (optional)
Height6.28 m (20.6 ft)
Diameter3.7 m (12 ft)
Propellant mass18,700 kg (41,200 lb)
Powered byRD-58MF
Maximum thrust49.03 kN (11,020 lbf)
Specific impulse353 seconds (3.46 km/s)
PropellantRP-1/LOX

Irtysh (Russian: Иртыш),[2] also named Soyuz-5 (Russian: Союз-5), formerly codenamed Fenix in Russian and Sunkar (Kazakh: Сұңқар, lit.'falcon') in Kazakh, is a planned Russian rocket that is being developed by JSC SRC Progress within the "Project Feniks" (Russian: Феникс, lit.'phoenix'). Initially it will replace the capability of Zenit-2 and Proton Medium, and in the future will serve as the base of a super heavy-lift launch vehicle rocket (Yenisei) to match the Energia/Buran capabilities. As of August 2023, Irtysh is expected to launch from the Baikonur Baiterek, the ex Zenit-2 launch site, in a partnership with the government of Kazakhstan, with a planned debut in December 2025.[1][3]

  1. ^ a b "First launch of Soyuz-5 rocket due Dec 24, 2025". TASS. 17 August 2023. Retrieved 18 August 2023.
  2. ^ "В Роскосмосе подтвердили информацию о новом названии ракеты "Союз-5"". РИА Новости (in Russian). 4 December 2018.
  3. ^ Cite error: The named reference tass-20210207 was invoked but never defined (see the help page).