R-26 Stage 1
8K66

Credit - © Mark Wade
Gross Mass: 60,300 kg (132,900 lb). Empty Mass: 3,000 kg (6,600 lb). Thrust (vac): 1,451.000 kN (326,197 lbf). Isp: 310 sec. Burn time: 160 sec. Propellants: Nitric acid/UDMH. Isp(sl): 251 sec. Diameter: 3.00 m (9.80 ft). Span: 15.00 m (49.00 ft). No Engines: 1. Engine: RD-224. Status: Out of production. First Flight: 1961. Other designations: 8K66.

Orevo has sectioned hardware. Tsniimash has 1:10 structural simulation model. All figures accurate except empty mass estimated. Source: Placard, TsNIIMASH, Orevo.

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