|Launch site||Baikonur Site 1/5|
|Launch date||22 May 1993
|Decay Date||4 July 1993|
|Free flight time||3 days|
|Docked time||40 days|
|Docking port||Core Forward|
|Docking date||24 May 1993
|Undocking date||3 July 1993
|Periapsis||388 kilometres (241 mi)|
|Apoapsis||390 kilometres (240 mi)|
|Total||7,250 kg (16,000 lb)|
Progress M-18 was a Russian unmanned cargo spacecraft which was launched in 1993 to resupply the Mir space station. The thirty-sixth of sixty four Progress spacecraft to visit Mir, it used the Progress-M 11F615A55 configuration, and had the serial number 218. It carried supplies including food, water and oxygen for the EO-13 crew aboard Mir, as well as equipment for conducting scientific research, and fuel for adjusting the station's orbit and performing manoeuvres.
Progress M-18 was launched at 06:41:47 GMT on 22 May 1993, atop a Soyuz-U2 carrier rocket flying from Site 1/5 at the Baikonur Cosmodrome. It was the last Progress spacecraft to be launched on a Soyuz-U2. Following two days of free flight, it docked with the Forward port of Mir's core module at 08:24:44 GMT on 24 May.
During the 40 days for which Progress M-18 was docked, Mir was in an orbit of around 388 by 390 kilometres (210 by 210 nmi), inclined at 51.6 degrees. Progress M-18 undocked from Mir at 15:58:16 GMT on 3 July; less than half an hour before Soyuz TM-17 docked with the port which it had vacated. It was deorbited around a day later, to a destructive reentry over the Pacific Ocean. Before undocking, a VBK-Raduga capsule launched aboard Progress M-17 had been installed on Progress M-18, and this separated once the deorbit burn was complete. The capsule landed successfully at 17:13 GMT.
See also 
- McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 2009-09-02.
- "Progress M-18". NSSDC Master Catalog. US National Space Science Data Center. Retrieved 2009-09-02.
- Krebs, Gunter. "Progress-M 1 - 13, 15 - 37, 39 - 67 (11F615A55, 7KTGM)". Gunter's Space Page. Retrieved 2009-09-02.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2009-09-02.
- Anikeev, Alexander. "Cargo spacecraft "Progress M-18"". Manned Astronautics - Figures & Facts. Retrieved 2009-09-02.
- Wade, Mark. "Progress M". Encyclopedia Astronautica. Retrieved 2009-09-02.[dead link]
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