Progress Credit - © Mark Wade Media Gallery

Progress took the basic Soyuz 7K-T manned ferry designed for the Salyut space station and modified it for unmanned space station resupply. The re-entry module was deleted and replaced with a section containing propellant tanks and pumping systems for space station refueling. The orbital module was used to transport dry cargo and water to the station.

Some Progress were launched with a Soyuz Launch Escape System tower. Officially, this was to preserve proven Soyuz aerodynamics. In fact, the tower for these launches included ejection seats planned for use with the Buran spaceplane.

Design Life: 3 days. Orbital Storage: 30 days. Typical orbit: 208 km x 266 km at 51.6 degrees inclination. Length: 7.48 m (24.54 ft). Maximum Diameter: 2.72 m (8.92 ft). Habitable Volume: 4.00 m3. Mass: 7,020 kg (15,470 lb). Main Engine Thrust: 4.089 kN (919 lbf). Main Engine Propellants: Nitric Acid/Hydrazine. Main Engine Propellants: 500 kg (1,100 lb). Main Engine Isp: 282 sec. Spacecraft delta v: 200 m/s (650 ft/sec). Electrical System: Batteries. Associated Launch Vehicle: Soyuz 11A511U, Soyuz 11A511U2.

• Progress GO.  Other Designations: Gruzovoi otsek. Part of: Progress. Class: Manned. Type: Spacecraft Module. Purpose: Cargo section.

  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. Rendezvous System: Igla. Antenna: Lightweight. Tower: One-Dish. Orbital Module: Cargo. Length (m): 2.26. Windows: Four. OM Separation: n/a.

  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).

• Progress OKD.  Other Designations: Otsek komponentov dozapravki. Part of: Progress. Class: Manned. Type: Spacecraft Module. Purpose: Refuelling section.

  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: 1,846 kg (4,069 lb). Payload: 975 kg (2,149 lb). RCS Coarse Backup No x Thrust: 6 x 98 N. RCS Propellants: H2O2.

• Progress PAO.  Other Designations: Priborno-agregatniy otsek. Part of: Progress. Class: Manned. Type: Spacecraft Module. Purpose: Equipment-engine section.

  Derived from Soyuz 7K-OK basic PAO service module with pump-fed main engines and separate RCS/main engine propellant feed system. Solar panels deleted and spacecraft powered by batteries only.

  Length: 2.26 m (7.41 ft). Basic Diameter: 2.15 m (7.05 ft). Maximum Diameter: 2.72 m (8.92 ft). Mass: 2,654 kg (5,851 lb). RCS Coarse No x Thrust: 14 X 98 N. RCS Fine No x Thrust: 4 X 98 N. RCS Coarse Backup No x Thrust: 8 x 10 N. RCS Fine Backup No x Thrust: 4 x 10 N roll. RCS Propellants: H2O2. Main Engine: KTDU-53. Main Engine: 305 kg (672 lb). Main Engine Thrust: 4.089 kN (919 lbf). Main Engine Propellants: Nitric Acid/Hydrazine. Main Engine Propellants: 500 kg (1,100 lb). Main Engine Isp: 282 sec. Backup Main Engine Thrust: 4.030 kN (906 lbf). Electrical System: Batteries. Electric System: 0.50 average kW. Electric System: 50.00 kWh.

• 1978 August 7 - Progress 3 - Program: Salyut 6. Flight: Salyut 6 EO-2. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,014 kg (15,463 lb). Perigee: 190 km (110 mi). Apogee: 232 km (144 mi). Inclination: 51.60 deg. Period: 88.70 min. Duration: 15.76 days.

  Unmanned supply vessel to Salyut 6. Delivery of fuel, consumable materials and equipment to the Salyut 6 station. Docked with Salyut 6 on 9 Aug 1978 23:59:30 GMT. Undocked on 21 Aug 1978 15:42:50 GMT. Destroyed in reentry on 23 Aug 1978 16:45:00 GMT. Total free-flight time 4.10 days. Total docked time 11.66 days.

• 1978 January 20 - Progress 1 - Program: Salyut 6. Flight: Salyut 6 EO-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 173 km (107 mi). Apogee: 256 km (159 mi). Inclination: 51.60 deg. Period: 88.70 min. Duration: 18.73 days.

  Unmanned supply vessel to Salyut 6. Delivery of fuel, consumable materials and equipment to the Salyut 6 station. Docked with Salyut 6 on 22 Jan 1978 10:12:14 GMT. Undocked on 6 Feb 1978 05:54:00 GMT. Destroyed in reentry on 8 Feb 1978 02:00:00 GMT. Total free-flight time 3.91 days. Total docked time 14.82 days.

• 1978 July 7 - Progress 2 - Program: Salyut 6. Flight: Salyut 6 EO-2. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,014 kg (15,463 lb). Perigee: 248 km (154 mi). Apogee: 307 km (190 mi). Inclination: 51.60 deg. Period: 90.00 min. Duration: 27.59 days.

  Unmanned supply vessel to Salyut 6. Delivery of fuel, consumable materials and equipment to the Salyut 6 station. Docked with Salyut 6 on 9 Jul 1978 12:58:59 GMT. Undocked on 2 Aug 1978 04:57:44 GMT. Destroyed in reentry on 4 Aug 1978 01:31:07 GMT. Total free-flight time 3.92 days. Total docked time 23.67 days.

• 1978 October 3 - Progress 4 - Program: Salyut 6. Flight: Salyut 6 EO-2. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,014 kg (15,463 lb). Perigee: 185 km (114 mi). Apogee: 247 km (153 mi). Inclination: 51.70 deg. Period: 88.80 min. Duration: 22.72 days.

  Unmanned supply vessel to Salyut 6. Delivery of fuel, consumable materials and equipment to the Salyut 6 station. Docked with Salyut 6 on 6 Oct 1978 01:00:15 GMT. Undocked on 24 Oct 1978 13:01:52 GMT. Destroyed in reentry on 26 Oct 1978 16:28:13 GMT. Total free-flight time 4.22 days. Total docked time 18.50 days.

• 1979 June 28 - Progress 7 - Program: Salyut 6. Flight: Salyut 6 EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,014 kg (15,463 lb). Perigee: 186 km (115 mi). Apogee: 251 km (155 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 21.69 days.

  Unmanned supply vessel to Salyut 6. Delivery of fuel, consumable materials and equipment to the Salyut 6 station. Docked with Salyut 6 on 30 Jun 1979 11:18:22 GMT. Undocked on 18 Jul 1979 03:49:55 GMT. Destroyed in reentry on 20 Jul 1979 01:57:30 GMT. Total free-flight time 4.0 days. Total docked time 17.69 days.

• 1979 March 12 - Progress 5 - Program: Salyut 6. Flight: Salyut 6 EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,014 kg (15,463 lb). Perigee: 183 km (113 mi). Apogee: 256 km (159 mi). Inclination: 51.70 deg. Period: 88.80 min. Duration: 23.77 days.

  Unmanned supply vessel to Salyut 6. Delivery of fuel, consumable materials and equipment to the Salyut 6 station. Docked with Salyut 6 on 14 Mar 1979 07:19:21 GMT. Undocked on 3 Apr 1979 16:10:00 GMT. Destroyed in reentry on 5 Apr 1979 00:10:22 GMT. Total free-flight time 3.40 days. Total docked time 20.37 days.

• 1979 May 13 - Progress 6 - Program: Salyut 6. Flight: Salyut 6 EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,014 kg (15,463 lb). Perigee: 190 km (110 mi). Apogee: 247 km (153 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 27.61 days.

  Unmanned supply vessel to Salyut 6. Delivery of fuel, consumable materials and equipment to the Salyut 6 station. Docked with Salyut 6 on 15 May 1979 06:19:22 GMT. Undocked on 8 Jun 1979 07:59:41 GMT. Destroyed in reentry on 9 Jun 1979 18:52:46 GMT. Total free-flight time 3.54 days. Total docked time 24.07 days.

• 1980 April 27 - Progress 9 - Program: Salyut 6. Flight: Salyut 6 EO-4. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,014 kg (15,463 lb). Perigee: 185 km (114 mi). Apogee: 255 km (158 mi). Inclination: 51.70 deg. Period: 88.80 min. Duration: 24.76 days.

  Unmanned supply vessel for Salyut 6. Delivery of various cargoes to the Salyut-6 orbital station. Docked with Salyut 6 on 29 Apr 1980 08:09:19 GMT. Undocked on 20 May 1980 18:51:00 GMT. Destroyed in reentry on 22 May 1980 00:44:00 GMT. Total free-flight time 3.32 days. Total docked time 21.45 days.

• 1980 June 29 - Progress 10 - Program: Salyut 6. Flight: Salyut 6 EO-4. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,014 kg (15,463 lb). Perigee: 183 km (113 mi). Apogee: 264 km (164 mi). Inclination: 51.60 deg. Period: 89.00 min. Duration: 19.88 days.

  Unmanned supply vessel for Salyut 6. Delivery of various cargoes to the Salyut-6 orbital station. Docked with Salyut 6 on 1 Jul 1980 05:53:00 GMT. Undocked on 17 Jul 1980 22:21:00 GMT. Destroyed in reentry on 19 Jul 1980 01:47:00 GMT. Total free-flight time 3.19 days. Total docked time 16.69 days.

• 1980 March 27 - Progress 8 - Program: Salyut 6. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,014 kg (15,463 lb). Perigee: 185 km (114 mi). Apogee: 250 km (150 mi). Inclination: 51.60 deg. Period: 88.90 min. Duration: 29.50 days.

  Unmanned supply vessel for Salyut 6. Delivery of various cargoes to the Salyut-6 orbital station. Docked with Salyut 6 on 29 Mar 1980 20:01:00 GMT. Undocked on 25 Apr 1980 08:04:00 GMT. Destroyed in reentry on 26 Apr 1980 06:54:00 GMT. Total free-flight time 3.0 days. Total docked time 26.50 days.

• 1980 September 28 - Progress 11 - Program: Salyut 6. Flight: Salyut 6 EO-4. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,014 kg (15,463 lb). Perigee: 188 km (116 mi). Apogee: 241 km (149 mi). Inclination: 51.60 deg. Period: 88.70 min. Duration: 73.95 days.

  Unmanned supply vessel for Salyut 6. Delivery of various cargoes to the Salyut-6 orbital station. Docked with Salyut 6 on 30 Sep 1980 17:03:00 GMT. Undocked on 9 Dec 1980 10:23:00 GMT. Destroyed in reentry on 11 Dec 1980 14:00:00 GMT. Total free-flight time 4.23 days. Total docked time 69.72 days.

• 1981 January 24 - Progress 12 - Program: Salyut 6. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 247 km (153 mi). Apogee: 308 km (191 mi). Inclination: 51.70 deg. Period: 90.00 min. Duration: 55.11 days.

  Unmanned supply vessel to Salyut 6. Delivery of various cargoes to the Salyut-6 orbital station. Docked with Salyut 6 on 26 Jan 1981 15:56:00 GMT. Undocked on 19 Mar 1981 18:14:00 GMT. Destroyed in reentry on 20 Mar 1981 16:59:00 GMT. Total free-flight time 3.02 days. Total docked time 52.10 days.

• 1982 July 10 - Progress 14 - Program: Salyut 7. Flight: Salyut 7 EO-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 301 km (187 mi). Apogee: 325 km (201 mi). Inclination: 51.60 deg. Period: 90.70 min. Duration: 33.65 days.

  Unmanned supply vessel to Salyut 7. Docked with Salyut 7 on 12 Jul 1982 11:41:00 GMT. Undocked on 10 Aug 1982 22:11:00 GMT. Destroyed in reentry on 13 Aug 1982 01:29:00 GMT. Total free-flight time 4.21 days. Total docked time 29.44 days.

• 1982 May 23 - Progress 13 - Program: Salyut 7. Flight: Salyut 7 EO-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 186 km (115 mi). Apogee: 263 km (163 mi). Inclination: 51.60 deg. Period: 89.00 min. Duration: 13.75 days.

  Unmanned supply vessel to Salyut 7. Transport of various cargoes to the Salyut-7 orbital station. Docked with Salyut 7 on 25 May 1982 07:56:36 GMT. Undocked on 4 Jun 1982 06:31:00 GMT. Destroyed in reentry on 6 Jun 1982 00:05:00 GMT. Total free-flight time 3.81 days. Total docked time 9.94 days.

• 1982 October 31 - Progress 16 - Program: Salyut 7. Flight: Salyut 7 EO-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 186 km (115 mi). Apogee: 246 km (152 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 44.25 days.

  Unmanned supply vessel to Salyut 7. Docked with Salyut 7 on 2 Nov 1982 13:22:00 GMT. Undocked on 13 Dec 1982 15:32:00 GMT. Destroyed in reentry on 14 Dec 1982 17:17:00 GMT. Total free-flight time 3.16 days. Total docked time 41.09 days.

• 1982 September 18 - Progress 15 - Program: Salyut 7. Flight: Salyut 7 EO-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 188 km (116 mi). Apogee: 241 km (149 mi). Inclination: 51.70 deg. Period: 88.80 min. Duration: 28.51 days.

  Unmanned supply vessel to Salyut 7. Docked with Salyut 7 on 20 Sep 1982 06:12:00 GMT. Undocked on 14 Oct 1982 13:46:00 GMT. Destroyed in reentry on 16 Oct 1982 17:08:00 GMT. Total free-flight time 4.19 days. Total docked time 24.32 days.

• 1983 August 17 - Progress 17 - Program: Salyut 7. Flight: Salyut 7 EO-2. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 189 km (117 mi). Apogee: 242 km (150 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 31.48 days.

  Unmanned supply vessel to Salyut 7. Docked with Salyut 7 on 19 Aug 1983 13:47:00 GMT. Undocked on 17 Sep 1983 11:44:00 GMT. Destroyed in reentry on 17 Sep 1983 23:43:00 GMT. Total free-flight time 2.57 days. Total docked time 28.91 days.

• 1983 October 20 - Progress 18 - Program: Salyut 7. Flight: Salyut 7 EO-2. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 185 km (114 mi). Apogee: 242 km (150 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 26.76 days.

  Transport of various cargoes to the Salyut-7 orbital station. Docked with Salyut 7 on 22 Oct 1983 11:34:00 GMT. Boosted Salyut to 326 X 356 orbit on 4 Nov 1983. Undocked on 13 Nov 1983 03:08:00 GMT. Destroyed in reentry on 16 Nov 1983 04:18:00 GMT. Total free-flight time 5.11 days. Total docked time 21.65 days.

• 1984 April 15 - Progress 20 - Program: Salyut 7. Flight: Salyut 7 EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,200 kg (15,800 lb). Perigee: 186 km (115 mi). Apogee: 260 km (160 mi). Inclination: 51.60 deg. Period: 89.00 min. Duration: 21.68 days.

  Transport of various cargoes to the Salyut-7 orbital station. First launch of Progress by Soyuz-U2 launch vehicle. Docked with Salyut 7 on 17 Apr 1984 09:22:00 GMT. Undocked on 6 May 1984 17:46:00 GMT. Destroyed in reentry on 7 May 1984 00:32:51 GMT. Total free-flight time 2.33 days. Total docked time 19.35 days.

• 1984 August 14 - Progress 23 - Program: Salyut 7. Flight: Salyut 7 EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 186 km (115 mi). Apogee: 250 km (150 mi). Inclination: 51.60 deg. Period: 88.90 min. Duration: 13.79 days.

  Transport of various cargoes to the Salyut-7 orbital station. Docked with Salyut 7 on 16 Aug 1984 08:11:00 GMT. Undocked on 26 Aug 1984 16:13:00 GMT. Destroyed in reentry on 28 Aug 1984 01:28:00 GMT. Total free-flight time 3.46 days. Total docked time 10.33 days.

• 1984 February 21 - Progress 19 - Program: Salyut 7. Flight: Salyut 7 EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 186 km (115 mi). Apogee: 245 km (152 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 40.48 days.

  Transport of various cargoes to the Salyut-7 orbital station. Docked with Salyut 7 on 23 Feb 1984 08:21:00 GMT. Undocked on 31 Mar 1984 09:40:00 GMT. Destroyed in reentry on 1 Apr 1984 18:18:00 GMT. Total free-flight time 3.43 days. Total docked time 37.05 days.

• 1984 May 28 - Progress 22 - Program: Salyut 7. Flight: Salyut 7 EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 188 km (116 mi). Apogee: 244 km (151 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 48.19 days.

  Transport of various cargoes to the Salyut-7 orbital station. Docked with Salyut 7 on 30 May 1984 15:47:00 GMT. Undocked on 15 Jul 1984 13:36:00 GMT. Destroyed in reentry on 15 Jul 1984 18:52:00 GMT. Total free-flight time 2.28 days. Total docked time 45.91 days.

• 1984 May 7 - Progress 21 - Program: Salyut 7. Flight: Salyut 7 EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 187 km (116 mi). Apogee: 246 km (152 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 18.68 days.

  Transport of various cargoes to the Salyut-7 orbital station. Docked with Salyut 7 on 10 May 1984 00:10:00 GMT. Undocked on 26 May 1984 09:41:00 GMT. Destroyed in reentry on 26 May 1984 15:00:30 GMT. Total free-flight time 2.28 days. Total docked time 16.40 days.

• 1985 July 19 - Cosmos 1669 - Program: Salyut 7. Flight: Salyut 7 EO-4-1a, Salyut 7 EO-4-1b. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 187 km (116 mi). Apogee: 247 km (153 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 41.51 days.

  Progress vehicle, given Cosmos designation instead of Progress because control lost early in mission but regained later. Resupplied Salyut 7. On departure briefly undocked and redocked to verify reliability of docking system. Transported of various cargoes to the Salyut-7 orbital station. Docked with Salyut 7 on 21 Jul 1985 15:05:00 GMT. Undocked on 28 Aug 1985 21:50:00 GMT. Destroyed in reentry on 30 Aug 1985 01:20:00 GMT. Total free-flight time 3.23 days. Total docked time 38.28 days.

• 1985 June 21 - Progress 24 - Program: Salyut 7. Flight: Salyut 7 EO-4-1a, Salyut 7 EO-4-1b. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U. Mass: 7,020 kg (15,470 lb). Perigee: 189 km (117 mi). Apogee: 251 km (155 mi). Inclination: 51.60 deg. Period: 88.90 min. Duration: 24.91 days.

  Delivery to the Salyut-7 orbital station of a mixed cargo with a total mass of 2,000 kg. Docked with Salyut 7 on 23 Jun 1985 02:54:00 GMT. Undocked on 15 Jul 1985 12:28:00 GMT. Destroyed in reentry on 15 Jul 1985 22:33:31 GMT. Total free-flight time 2.51 days. Total docked time 22.40 days.

• 1986 April 23 - Progress 26 - Program: Mir. Flight: Mir EO-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,250 kg (15,980 lb). Perigee: 184 km (114 mi). Apogee: 257 km (159 mi). Inclination: 51.60 deg. Period: 88.90 min. Duration: 60.83 days.

  Unmanned supply vessel to Mir. Rendezvoused with Mir on 25 April, but problem with Mir's radio communication system delays docking until the next day. Docked with Mir on 26 Apr 1986 21:26:06 GMT. Undocked on 22 Jun 1986 18:25:00 GMT. Destroyed in reentry on 23 Jun 1986 15:41:01 GMT. Total free-flight time 3.96 days. Total docked time 56.87 days.

• 1986 March 19 - Progress 25 - Program: Mir. Flight: Mir EO-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,270 kg (16,020 lb). Perigee: 183 km (113 mi). Apogee: 251 km (155 mi). Inclination: 51.70 deg. Period: 88.80 min. Duration: 32.61 days.

  Unmanned supply vessel transporting sundry cargoes to the Mir orbital station. Docked with Mir on 21 Mar 1986 11:16:02 GMT. Undocked on 20 Apr 1986 19:24:08 GMT. Destroyed in reentry on 21 Apr 1986 00:48:30 GMT. Total free-flight time 2.27 days. Total docked time 30.34 days.

• 1987 April 21 - Progress 29 - Program: Mir. Flight: Mir EO-2, Mir LD-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,100 kg (15,600 lb). Perigee: 189 km (117 mi). Apogee: 237 km (147 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 19.72 days.

  Unmanned supply vessel to Mir. Deorbited May 11, 1987. Docked with Mir at 343 X 363 1705 23 April at rear port of Kvant. Undocked May 11 03:10. Deorbited28 May 02:59 .
  Officially: Transporting sundry cargoes to the Mir orbital station. Docked with Salyut 7 on 23 Apr 1987 17:04:51 GMT. Undocked on 11 May 1987 03:10:01 GMT. Destroyed in reentry on 11 May 1987 08:28:00 GMT. Total free-flight time 2.30 days. Total docked time 17.42 days.

• 1987 August 3 - Progress 31 - Program: Mir. Flight: Soyuz TM-3, Mir LD-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,212 kg (15,899 lb). Perigee: 187 km (116 mi). Apogee: 250 km (150 mi). Inclination: 51.60 deg. Period: 88.90 min. Duration: 50.18 days.

  Unmanned resupply vessel to Mir. Rendezvous transfer orbits 187 X 250 km, 51. 64 deg; 266 X 314 km; 309 X 360 km. Docked with Mir on 5 Aug 1987 22:27:35 GMT. Refueled Mir propellants tanks on 15/16 Sept. Undocked on 21 Sep 1987 23:57:41 GMT. Destroyed in reentry on 23 Sep 1987 01:02:00 GMT. Total free-flight time 3.12 days. Total docked time 47.06 days.

• 1987 January 16 - Progress 27 - Program: Mir. Flight: Mir EO-2, Mir LD-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,230 kg (15,930 lb). Perigee: 183 km (113 mi). Apogee: 263 km (163 mi). Inclination: 51.60 deg. Period: 89.00 min. Duration: 40.42 days.

  Unmanned supply vessel to Mir; raised Mir's orbit. Transported sundry cargoes to the Mir orbital station. Docked with Salyut 7 on 18 Jan 1987 07:26:50 GMT. Undocked on 23 Feb 1987 11:29:01 GMT. Destroyed in reentry on 25 Feb 1987 16:05:00 GMT. Total free-flight time 4.25 days. Total docked time 36.17 days.

• 1987 March 3 - Progress 28 - Program: Mir. Flight: Mir EO-2, Mir LD-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,246 kg (15,974 lb). Perigee: 185 km (114 mi). Apogee: 254 km (157 mi). Inclination: 51.60 deg. Period: 88.90 min. Duration: 24.69 days.

  Unmanned supply vessel to Mir. Orbit of station at time of rendezvous was 344 X 369 km, 51. 62 deg. Docked with Mir on 5 Mar 1987 12:42:36 GMT. Undocked on 26 Mar 1987 05:06:48 GMT. Destroyed in reentry on 28 Mar 1987 03:49:00 GMT. Total free-flight time 4.01 days. Total docked time 20.68 days.

• 1987 May 19 - Progress 30 - Program: Mir. Flight: Mir EO-2, Mir LD-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,249 kg (15,981 lb). Perigee: 341 km (211 mi). Apogee: 365 km (226 mi). Inclination: 51.60 deg. Period: 91.60 min. Duration: 61.07 days.

  Unmanned supply vessel to Mir. Rendezvoused with Mir/Kvant in its orbit of 343 X 366 km, 51. 6 deg. Docked with the station on 21 May 1987 05:50:38 GMT. Undocked on 19 Jul 1987 00:19:51 GMT. Destroyed in reentry on 19 Jul 1987 05:42:00 GMT. Total free-flight time 2.30 days. Total docked time 58.77 days.

• 1987 November 20 - Progress 33 - Program: Mir. Flight: Soyuz TM-3, Mir LD-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 6,895 kg (15,200 lb). Perigee: 326 km (202 mi). Apogee: 343 km (213 mi). Inclination: 51.60 deg. Period: 91.20 min. Duration: 28.58 days.

  Unmanned resupply vessel to Mir. Space station orbit at rendezvous was 326 km x 343 km. Docked on 23 Nov 1987 01:39:13 GMT. Undocked on 19 Dec 1987 08:15:46 GMT. Destroyed in reentry on 19 Dec 1987 13:37:00 GMT. Total free-flight time 2.30 days. Total docked time 26.28 days.

• 1987 September 23 - Progress 32 - Program: Mir. Flight: Soyuz TM-3, Mir LD-1. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,035 kg (15,509 lb). Perigee: 295 km (183 mi). Apogee: 355 km (220 mi). Inclination: 51.60 deg. Period: 91.00 min. Duration: 55.98 days.

  Unmanned resupply vessel to Mir. Delivered 850 kg propellants, 315 kg food, 2,000 kg total. Docked with Mir on 26 Sep 1987 01:08:15 GMT. Undocked on 10 Nov 1987 04:09:10 GMT. Redocked from 2,500 m on 10 Nov 1987 05:47 GMT. Undocked again 17 Nov 1998 19:25 GMT. Destroyed in reentry on 19 Nov 1987 00:58:00 GMT. Total free-flight time 3.17 days. Total docked time 52.82 days.

• 1988 December 25 - Progress 39 - Program: Mir. Flight: Mir EO-4, Mir LD-2. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,015 kg (15,465 lb). Perigee: 187 km (116 mi). Apogee: 238 km (147 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 44.40 days.

  Unmanned resupply vessel to Mir. Made second test of Buran ejection seat during ascent to orbit. The K-36M.11F35 seat was installed in an 'experimental droppable compartment' installed in place of the Launch Escape Tower engine on top of the shroud. Rendezvous orbits 187 X 237 km, 51.63 deg; 236 X 338 km; 325 X 353 km at Mir. Delivered 1,300 kg cargo. Docked with Mir on 27 Dec 1988 05:35:10 GMT. Undocked on 7 Feb 1989 06:45:34 GMT. Destroyed in reentry on 7 Feb 1989 13:49:00 GMT. Total free-flight time 2.35 days. Total docked time 42.05 days.

• 1988 January 20 - Progress 34 - Program: Mir. Flight: Mir EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,078 kg (15,604 lb). Perigee: 329 km (204 mi). Apogee: 347 km (215 mi). Inclination: 51.60 deg. Period: 91.30 min. Duration: 43.36 days.

  Unmanned resupply vessel to Mir. Docked on 23 Jan 1988 00:09:09 GMT. Undocked on 4 Mar 1988 03:40:09 GMT. Destroyed in reentry on 4 Mar 1988 07:29:30 GMT. Total free-flight time 2.21 days. Total docked time 41.15 days.

• 1988 July 18 - Progress 37 - Program: Mir. Flight: Mir EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,065 kg (15,575 lb). Perigee: 189 km (117 mi). Apogee: 256 km (159 mi). Inclination: 51.60 deg. Period: 89.00 min. Duration: 24.69 days.

  Unmanned resupply vessel to Mir. Rendezvous transfer orbits 187x256 km, 51. 62 deg; 235 x 319 km; 343 x 347 km. Docked with Mir on 20 Jul 1988 22:33:40 GMT. Refuelling operations on 7,8, and 9 August 1998. Undocked on 12 Aug 1988 08:31:54 GMT. Destroyed in reentry on 12 Aug 1988 13:45:40 GMT. Total free-flight time 2.27 days. Total docked time 22.42 days.

• 1988 March 23 - Progress 35 - Program: Mir. Flight: Mir EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,037 kg (15,513 lb). Perigee: 185 km (114 mi). Apogee: 262 km (162 mi). Inclination: 51.60 deg. Period: 89.00 min. Duration: 42.41 days.

  Unmanned resupply vessel to Mir. Docked on 25 Mar 1988 22:21:35 GMT. Undocked on 5 May 1988 01:36:03 GMT. Destroyed in reentry on 5 May 1988 06:56:19 GMT. Total free-flight time 2.28 days. Total docked time 40.14 days.

• 1988 May 13 - Progress 36 - Program: Mir. Flight: Mir EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,077 kg (15,602 lb). Perigee: 185 km (114 mi). Apogee: 246 km (152 mi). Inclination: 51.70 deg. Period: 88.80 min. Duration: 23.87 days.

  Unmanned resupply vessel to Mir. Rendezvous transfer orbits 185x246 km, 51. 66 deg; 223x334 km; 331x357 km. Docked with Mir on 15 May 1988 02:13:26 GMT. Undocked on 5 Jun 1988 11:11:55 GMT. Destroyed in reentry on 5 Jun 1988 21:18:40 GMT. Total free-flight time 2.49 days. Total docked time 21.37 days.

• 1988 September 9 - Progress 38 - Program: Mir. Flight: Mir LD-2, Mir EO-3. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,027 kg (15,491 lb). Perigee: 187 km (116 mi). Apogee: 248 km (154 mi). Inclination: 51.60 deg. Period: 88.90 min. Duration: 74.81 days.

  Unmanned resupply vessel to Mir. During launch first test of Buran ejection seat was made during ascent to orbit. The K-36M.11F35 seat was installed in an 'experimental droppable compartment' installed in place of the Launch Escape Tower engine on top of the shroud. Rendezvous orbits 186 X 246 km, 51. 63 deg; 234 X 332 km, 337 X 363 km. Docked with Mir on 12 Sep 1988 01:22:28 GMT. Delivered 2,000 kg supplies including 300 kg of food. Refuelled Mir. Undocked on 23 Nov 1988 12:12:46 GMT. Destroyed in reentry on 23 Nov 1988 19:06:58 GMT. Total free-flight time 2.36 days. Total docked time 72.45 days.

• 1989 February 10 - Progress 40 - Program: Mir. Flight: Mir EO-4, Mir LD-2. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,022 kg (15,480 lb). Perigee: 187 km (116 mi). Apogee: 244 km (151 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 22.71 days.

  Unmanned resupply vessel to Mir. Conducted third test of Buran ejection seat during ascent to orbit. The K-36M.11F35 seat was installed in an 'experimental droppable compartment' installed in place of the Launch Escape Tower engine on top of the shroud. Docked with Mir on 12 Feb 1989 10:29:38 GMT. Undocked on 3 Mar 1989 01:45:52 GMT. Unfurled experimental space mirror petal structure on undocking. Destroyed in reentry on 5 Mar 1989 01:59:00 GMT. Total free-flight time 4.08 days. Total docked time 18.64 days.

• 1989 March 16 - Progress 41 - Program: Mir. Flight: Mir EO-4, Mir LD-2. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 6,995 kg (15,421 lb). Perigee: 187 km (116 mi). Apogee: 243 km (150 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 39.72 days.

  Unmanned resupply vessel to Mir. Conducted fourth test of Buran ejection seat during ascent to orbit. The K-36M.11F35 seat was installed in an 'experimental droppable compartment' installed in place of the Launch Escape Tower engine on top of the shroud. Delivered Bulgarian Spektr 256 spectrometer, power supplies for failed equipment. Docked with Mir on 18 Mar 1989 20:50:46 GMT. Between April 9 and 17 boosted Mir into a 373 X 416 km storage orbit after the decision was made to delay remanning the station. However these maneuvers resulted in the spacecraft running out of fuel. Undocked on 21 Apr 1989 01:46:15 GMT. Destroyed in uncontrolled decay of orbit on 25 Apr 1989 12:12:00 GMT. Total free-flight time 6.52 days. Total docked time 33.21 days.

• 1990 May 5 - Progress 42 - Program: Mir. Flight: Mir EO-6. Launch Site: Baikonur. Launch Vehicle: Soyuz 11A511U2. Mass: 7,011 kg (15,456 lb). Perigee: 188 km (116 mi). Apogee: 243 km (150 mi). Inclination: 51.60 deg. Period: 88.80 min. Duration: 21.66 days.

  Unmanned resupply vessel to Mir; last of original design Progress spacecraft. Conducted fifth and final test of Buran ejection seat during ascent to orbit. The K-36M.11F35 seat was installed in an 'experimental droppable compartment' installed in place of the Launch Escape Tower engine on top of the shroud. Docked with Mir on 7 May 1990 22:45:03 GMT. Undocked on 27 May 1990 07:08:58 GMT. Destroyed in reentry on 27 May 1990 12:27:30 GMT. Total free-flight time 2.31 days. Total docked time 19.35 days.

• Semenov, Yuri P Editor, Raketno-kosmicheskaya korporatsiya 'Energia' imeni S P Koroleva, Moscow, Russia, 1996. Russian in-house history of the Energia Corporation and its predecessors. Unprecedented detail, photographs, designations, and drawings, on the products of Korolev's OKB.

• Clark, Philip, The Soviet Manned Space Program, Salamander Books, London, 1988. ISBN: 051756954X. By far the best account of the Soviet manned program, though now out of date due to the flood of revelations since Glasnost and the end of the cold war. More at amazon.com...

• JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Accessed at: http://msl.jpl.nasa.gov/home.html.

• Krebs, Gunter, Gunter's Space Page, University of Frankfurt, 1996. Accessed at: http://www.skyrocket.de/space.

• McDowell, Jonathan, Jonathan's Space Home Page, Harvard University, 1997-present. Jonathan McDowell's complete on-line listing of all objects orbited and over 20,000 rocket launches Accessed at: http://www.planet4589.org/jsr.html.

• USAF Satellite Database, USAF Institute of Technology, 1995. Accessed at: ftp://archive.afit.af.mil/pub/space/.

• Agapov, V, Novosti kosmonavtiki, "Tablitsa zapuskov transportnikh gruzovikh korabley tipa 'Progress' i 'Progress M'", 1998, Issue 7, page 46.