This page no longer updated from 31 October 2001. Latest version can be found at www.astronautix.com
X-10 - Launch Vehicle - USA - See Navaho X-10
X-11 - Launch Vehicle - USA - See Atlas A
X-12 - Launch Vehicle - USA - See Atlas B
X-15 Flight 138 - Manned spaceflight - X-15 - USA
X-15 Flight 143 - Manned spaceflight - X-15 - USA
X-15 Flight 150 - Manned spaceflight - X-15 - USA
X-15 Flight 153 - Manned spaceflight - X-15 - USA
X-15 Flight 174 - Manned spaceflight - X-15 - USA
X-15 Flight 190 - Manned spaceflight - X-15 - USA
X-15 Flight 191 - Manned spaceflight - X-15 - USA
X-15 Flight 197 - Manned spaceflight - X-15 - USA
X-15 Flight 62 - Manned spaceflight - X-15 - USA
X-15 Flight 77 - Manned spaceflight - X-15 - USA
X-15 Flight 87 - Manned spaceflight - X-15 - USA
X-15 Flight 90 - Manned spaceflight - X-15 - USA
X-15 Flight 91 - Manned spaceflight - X-15 - USA
X-15 Pressure Suit - Spacecraft - Manned-
Space Suits - USA - See MC-2
X-15A-2 Tanks - Rocket Stage - USA - Lox/Ammonia - 7,026 kg
X-15A-2 - Spacecraft - Manned -
Spaceplane - USA
X-15A-2 - Launch Vehicle - USA
X-15A-2 - Rocket Stage - USA - Lox/Ammonia - 16,069 kg
X-15A - Spacecraft - Manned -
Spaceplane - USA
X-15A - Launch Vehicle - USA
X-15A - Rocket Stage - USA - Lox/Ammonia - 14,184 kg
X-15B - Spacecraft - Manned -
Spacecraft - USA
X-15 - Space Project - Manned - Rocketplane
X-17 - Launch Vehicle - USA
X-1A - Spacecraft - Manned -
Rocketplane - USA
X-1B - Spacecraft - Manned -
Rocketplane - USA
X-1 - Spacecraft - Manned -
Rocketplane - USA
X-1D - Spacecraft - Manned -
Rocketplane - USA
X-1E - Spacecraft - Manned -
Rocketplane - USA
X-1 - Rocket Engine - - Lox/Kerosene propellants - 89,780 kgf
X-20 - Spacecraft - Manned-
Spaceplane - USA - See Dynasoar
X-23A - Spacecraft - Manned-
Spaceplane - USA - See Prime
X-248A - Rocket Engine - USA - Solid propellants - 1,406 kgf - See X-248A
X-248 - Rocket Engine - USA - Solid propellants - 1,270 kgf - See X-248
X-24A - Spacecraft - Manned -
Spaceplane - USA
X-24B - Spacecraft - Manned -
Spaceplane - USA
X-24C - Spacecraft - Manned -
Spaceplane - USA
X-254 - Rocket Engine - USA - Solid propellants - 6,169 kgf - See X-254
X-258 - Rocket Engine - USA - Solid propellants - 2,268 kgf
X-259A - Rocket Engine - USA - Solid propellants - 8,239 kgf
X-259 - Rocket Engine - USA - Solid propellants - 9,493 kgf - See X-259
X-2 - Spacecraft - Manned -
Rocketplane - USA
X-30 - Spacecraft - Manned -
Spaceplane - USA
X-30 - Launch Vehicle - USA
X-30 - Rocket Stage - USA - Air/Slush LH2 - 140,000 kg
X-33 - Launch Vehicle - USA
X-33 - Rocket Stage - USA - Lox/LH2 - 123,800 kg
X-34A-1 - Rocket Stage - USA - Lox/Kerosene - 29,500 kg
X-34A-2 - Rocket Stage - USA - Lox/Kerosene - 4,500 kg
X-34A - Launch Vehicle - USA
X-34 - Spacecraft - Spaceplane -
- USA
X-34 - Launch Vehicle - USA
X-34 - Rocket Stage - USA - Lox/Kerosene - 21,800 kg
X-37 - Spacecraft - Spaceplane -
- USA
X-38 - Spacecraft - Manned -
Rescue - USA
X-405 - Rocket Engine - USA - Lox/Kerosene propellants - 13,745 kgf
X-40 - Spacecraft - Spaceplane -
- USA
X-430 - Rocket Engine - - LF2/LH2 propellants - 34,000 kgf
X-43 - Spacecraft - Spaceplane -
- USA
X-8 - Rocket Engine - - Lox/LH2 propellants - kgf
X35AL-6000 - Rocket Engine - USA - propellants - kgf
X45ALD-4000 - Rocket Engine - USA - Nitric acid/Amine propellants - kgf
X60AL-1300 - Rocket Engine - USA - Nitric acid/Aniline propellants - kgf
X60ALD-4000 - Rocket Engine - USA - Nitric acid/Aniline propellants - 1,800 kgf - See X60ALD-4000
X90ALT-60000 - Rocket Engine - USA - Nitric acid/Aniline propellants - kgf - See X90ALT-60000
XB-64, XSM-64 - Rocket Stage - USA - Air/Kerosene - 29,478 kg - See G-26 Navaho Missile
XB-64A, XSM-64A - Rocket Stage - USA - Lox/Kerosene - 76,870 kg - See G-38 Navaho Booster
XB-70 - Rocket Stage - USA - Air/Kerosene - 226,758 kg
XCAL-200 - Rocket Engine - USA - Nitric acid/Aniline propellants - kgf - See 300LR-200
XCALR-2000A-1 - Rocket Engine - USA - Nitric acid/Aniline propellants - kgf - See XCALR-2000A-1
XCALT-6000 - Rocket Engine - USA - Nitric acid/Aniline propellants - kgf - See XCALT-6000
XCNLT-600/1000/1500 - Rocket Engine - USA - Nitromethane propellants - kgf - See XCNLT-600/1000/1500
Xichang - Launch Site - China
XIPS - Rocket Engine - USA - Electric/Xenon propellants - 0 kgf
XJ40-WE-1 - Rocket Engine - USA - Air/Kerosene propellants - 4,943 kgf
XLR-105-5 - Rocket Engine - USA - Lox/Kerosene propellants - 37,038 kgf
XLR-11 - Rocket Engine - - Lox/Alcohol propellants - kgf
XLR-13-AJ-1 - Rocket Engine - USA - Nitric acid/Aniline propellants - 1,800 kgf - See X60ALD-4000
XLR-13-AJ-3 - Rocket Engine - USA - Nitric acid/Aniline propellants - kgf - See X45ALD-4000
XLR-13-AJ-5 - Rocket Engine - USA - Nitric acid/Amine propellants - kgf - See X45ALD-4000
XLR-132 - Rocket Engine - USA - N2O4/MMH propellants - 1,700 kgf - See XLR-132
XLR-25 - Rocket Engine - - Lox/Alcohol propellants - kgf
XLR-43-NA-1 - Rocket Engine - - Lox/Alcohol propellants - 34,000 kgf
XLR-71-NA-1 - Rocket Engine - - Lox/Alcohol propellants - kgf
XLR-83-NA-1 - Rocket Engine - USA - Lox/Alcohol propellants - 61,393 kgf
XLR-89-1 - Rocket Engine - USA - Lox/Kerosene propellants - 77,366 kgf
XLR-89-5 - Rocket Engine - USA - Lox/Kerosene propellants - 77,367 kgf - See XLR-89-5
XLR-99 - Rocket Engine - USA - Lox/Ammonia propellants - 26,762 kgf
XLR20AJ-2 - Rocket Engine - USA - Nitric acid/Gasoline propellants - kgf - See XLR20AJ-2
XLR24AJ-2 - Rocket Engine - USA - Nitric acid/Gasoline propellants - kgf
XLR53AJ-1 - Rocket Engine - USA - Nitric acid/Aniline propellants - kgf - See XLR53AJ-1
XMM - Spacecraft - Astronomy -
X-ray - EU
XRJ47-W-5 - Rocket Engine - USA - Air/Kerosene propellants - 3,401 kgf
XRM-89 - Launch Vehicle - USA - See Blue Scout 1
XRM-90 - Launch Vehicle - USA - See Blue Scout 2
XRM-91 - Launch Vehicle - USA - See Blue Scout Junior
XRS-2200 - Rocket Engine - USA - Lox/LH2 propellants - 121,600 kgf
XS-1 - Spacecraft - Manned -
Rocketplane - USA
XS-2 - Spacecraft - Manned-
Rocketplane - USA - See X-2
XTE - Spacecraft - Astronomy -
X-ray - USA
Back to Index
Last update 3 May 2001.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .