Progress M was an upgraded version of the original Progress. New service module and rendezvous and docking systems were adopted from Soyuz T.
Design Life: 30 days.Orbital Storage: 180 days.Typical orbit: 225 km x 258 km at 51.6 degrees inclination.Length: 7.23 m (23.72 ft).Maximum Diameter: 2.72 m (8.92 ft).Span: 10.60 m (34.70 ft).Mass: 7,450 kg (16,420 lb).Main Engine: KTDU-80.Main Engine Thrust: 3.920 kN (881 lbf).Main Engine Propellants: N2O4/UDMH.Main Engine Propellants: 900 kg (1,980 lb).Main Engine Isp: 305 sec.Electrical System: Solar panel span: 10.60 m; area 10.00 sq.m.Electric System: 0.60 average kW.
This payload return capsule was brought to the Mir space station aboard a Progress M freighter. It was loaded by the cosmonauts aboard the station, then reinstalled in the Progress M. The Progress M would make retrofire over Africa, a delta-V of 150 m/s at 350 km altitude. The VBK would separate from the Progress at an altitude of 110 to 130 km, then re-enter separately over Soviet territory. In practice the VBK had a rather poor recovery record, and was felt to take up too much valuable payload space and mass within the Progress.
Landing accuracy was plus-minus 125 km along the orbital trace, and plus-minus 15 km to either side of the orbital trace. At an altitude of 11 to 17 km, a drogue parachute would deploy, a chaff cloud would be jettisoned, and the homing beacon would begin transmitting. The main parachute would deploy at 3 to 4.5 km altitude, allowing the capsule to drift down at 8 m/s to a landing on the steppes. It was anticipated it would take only 3 hours between separation of the Progress and receipt of the payload at the cosmodrome.
Length: 1.47 m (4.82 ft).Basic Diameter: 0.78 m (2.55 ft).Maximum Diameter: 0.78 m (2.55 ft).Mass: 350 kg (770 lb).Payload: 150 kg (330 lb).L/D Hypersonic: 0.00.
Docking System: Lightweight. Probe: Roller-type. Tunnel: Yes. Collar Length (m): 0.22. Probe Length (m): 0.5. Base Diameter (m): 1.35. Ring Diameter (m): 1.35. Two Kurs-type rendezvous antennas, no rendezvous tower. Orbital Module: Cargo.
Length: 2.98 m (9.77 ft).Basic Diameter: 2.26 m (7.41 ft).Maximum Diameter: 2.26 m (7.41 ft).Habitable Volume: 4.00 m3.Mass: 2,520 kg (5,550 lb).Payload: 1,340 kg (2,950 lb).
Fuel module for refueling space stations.
Length: 2.24 m (7.34 ft).Basic Diameter: 2.17 m (7.11 ft).Maximum Diameter: 2.17 m (7.11 ft).Mass: 1,980 kg (4,360 lb).Payload: 1,200 kg (2,600 lb).RCS Propellants: H2O2.
Improved PAO service module derived from Soyuz 7K-S with pressure-fed main engines and unitary RCS/main engine propellant feed system.
Length: 2.26 m (7.41 ft).Basic Diameter: 2.15 m (7.05 ft).Maximum Diameter: 2.72 m (8.92 ft).Mass: 2,950 kg (6,500 lb).RCS Coarse No x Thrust: 16 X 98 N.RCS Fine No x Thrust: 8 X 98 N.RCS Coarse Backup No x Thrust: No separate backup translation engines.RCS Propellants: N2O4/UDMH.Main Engine: KTDU-80.Main Engine: 310 kg (680 lb).Main Engine Thrust: 6.197 kN (1,393 lbf).Main Engine Propellants: N2O4/UDMH.Main Engine Propellants: 880 kg (1,940 lb).Main Engine Isp: 302 sec.Electrical System: Solar panel span: 10.60 m; area 10.00 sq.m.Electric System: 0.60 average kW.
Undocked from at 16:06 GMT on February 27, 2005, in order to clear the port for Progress M-52, which would launch the next day. Progress M-51 lowered its perigee at around 18:30 GMT and remained in orbit for several days. FInally an engine firing was commanded, bringing it down in a destructive re-entry over the Pacific Ocean on March 9.
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