Secret Space Projects

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Unbuilt and cancelled rocket and spacecraft projects. Not for current or historic produced designs.
overscan (PaulMM)
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overscan (PaulMM)
overscan (PaulMM)
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SDI garage satellites
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publiusr
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Skybolt
Other Apollo Projects: What Should Have Been
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bobbymike
bobbymike
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Euclid ULLV SSTO
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1
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publiusr
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Jemiba
Blue Streak based satellite transport system
2 3 4 5 6
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215
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uk 75
uk 75
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Early european rocketry projects
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239
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Barrington Bond
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Holy Gemini !!
2
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56
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Barrington Bond
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B
Dornier Space Tug
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9
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Byeman
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flateric
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Chelomey OKB-52 UR-700 rockets family
2
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56
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Forest Green
Forest Green
hesham
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Energiya heavy-lift launch vehicle variants
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24
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Dmitry V.
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Antonio
Nuclear Powered Spacecraft
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187
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Forest Green
Forest Green
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Haven't seen that Blackstar recently?
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211
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XP67_Moonbat
XP67_Moonbat
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Russian manned moonlander
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31
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Michel Van
Michel Van
Orionblamblam
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METEOR: city in space
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31
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Scott Kenny
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Triton
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Space Shuttle Concepts
2 3 4
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124
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martinbayer
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Boeing X-20 Dyna-Soar and alternate projects
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367
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RanulfC
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Triton
Soviet Lunar Expeditionary Complex
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23
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19K
Deleted member 4286
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Flyaway
NG Innovation Systems aims for one year or more on-orbit Cygnus lifetime
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6
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Forest Green
Forest Green
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Various US Reusable Launch Vehicles (RLV) Projects
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615
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Dew
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Michel Van
Advance Ariane 5 studies from 1990s
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18
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martinbayer
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hesham
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Republic Aviation Space Vehicle
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7
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462
GeorgeA
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Rocket Factory Augsburg
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2
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949
TheKutKu
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Triton
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Nova launch vehicle (post-Saturn)
2 3
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86
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Deleted member 4286
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Triton
Late 1960s Space Tug
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21
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Deleted member 4286
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Dynoman
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General Dynamics Triamese (1968)
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33
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Deleted member 4286
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Michel Van
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Douglas ROMBUS
2 3 4
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120
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Archibald
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Michel Van
UR-500MK
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2
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Dmitry V.
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TsrJoe
Yangel R-56 (8K68 )
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17
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Dmitry V.
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Grey Havoc
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Lunar International Laboratory (1960s)
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7
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Deleted member 4286
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hesham
NASA/Langley SpaceJet Concept
2
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46
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16K
Archibald
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flateric
National Aero-Space Plane - NASP - X-30
2 3 4 5 6 7
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271
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129K
XP67_Moonbat
XP67_Moonbat
Orionblamblam
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X-15B - an orbital X-15
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29
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25K
Hafidz Rahman
Hafidz Rahman
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Space Shuttle External Tanks
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26
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Byeman
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Michel Van
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The (cancelled) second production run of Saturn Vs
2 3 4
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139
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Archibald
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Michel Van
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Reflect Orbital
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6
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589
publiusr
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hesham
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NASA JIMO
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5
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3K
Rhinocrates
Rhinocrates
airrocket
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1980's McDonnell TAV Concepts
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16
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10K
Dew
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SOC
US Navy Space Cruiser & DARPA/USAF Spaceplane Technology and Research (STAR)
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33
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14K
Deleted member 4286
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Skybolt
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By solids to the Moon: all-solid JPL Nova proposal
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33
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Deleted member 4286
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hesham
Dassault STAR-H aerospace plane
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4
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Deleted member 4286
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flateric
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Hermès Space Shuttle
2 3
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107
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TheKutKu
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O
SPS (Solar Power Satellite) Program of the 70's/80's
2
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66
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23K
Deleted member 4286
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Graham1973
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Lost Apollo - The LEM Optical Rendezvous System
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0
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366
Graham1973
Graham1973
Grey Havoc
Russian National Reusable Space Rocket program
2
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46
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7K
Deleted member 4286
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shadowcat48li
Project Orion / Project Daedalus
2 3 4
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129
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Deleted member 4286
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rallymodeller
PlanetSpace Silver Dart
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11
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8K
publiusr
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Flyaway
Metallic Hydrogen is real and it would make a very powerful rocket fuel
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16
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Byeman
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Graugrun
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Various South African Space projects,concepts and associated equipment
2
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70
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Thorn
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Graham1973
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Thermoelectric Outer Planets Spacecraft (TOPS)
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7
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Graham1973
Graham1973
flateric
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Recoverable Rocket Boosters: A Future That Never Was by Tony R.Landis
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20
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3K
Archibald
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GeminiProgram
Liberty Rocket - Pacific American Launch Systems
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2
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569
martinbayer
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flateric
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NPO Energiya Pody'om (Lift-off) system - pre-Energiya-Buran
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15
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Archibald
A
Michel Van
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French Space Rocket question
2 3
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86
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24K
cardonet
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overscan (PaulMM)
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Rockwell International Star-Raker
2 3
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99
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43K
Dew
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Flyaway
Nancy Grace Roman Telescope
2
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72
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Flyaway
Flyaway
A
US Lifting Bodies Studies - START (ASSET/PRIME), FDL, X-24, etc.
5 6 7 8 9 10 11 12 13 14
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521
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241K
SpaceMonk
SpaceMonk
flateric
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"Design Evolution of VTHL Hypersonic Flight Vehicle Designs from Tsien’s Boost-Glide Concept to Sierra Nevada’s Orbital DreamChaser"
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7
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909
martinbayer
M
OM
Ryan Saturn I First Stage Recovery via Rogallo Wing
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16
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5K
Byeman
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Grey Havoc
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Japanese 2050 Space Elevator project (Obayashi Corporation)
2 3
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83
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10K
martinbayer
M
M
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European BMD early warning and tracking satellites
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4
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1K
Forest Green
Forest Green
sferrin
Hypersoar
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13
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8K
NavarchNicias
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Grey Havoc
ESA 'Lunar Village' proposal
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12
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BlueAbyssal
BlueAbyssal
RavenOne
Solar Warden - SDI project
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16
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7K
flateric
flateric
hesham
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Aerojet-General Space Glider of 1961
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1
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581
XP67_Moonbat
XP67_Moonbat
Michel Van
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Keyhole satellite projects
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8
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2K
Michel Van
Michel Van
P
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SERV - 1971 VTOVL alternate shuttle proposal
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24
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16K
martinbayer
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Michel Van
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Space Suit Prototypes (like Grumman Moon Suit, Republic etc)
2 3 4 5 6
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228
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128K
klem
klem
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Spiral / "50/50" TSTO
2
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51
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22K
publiusr
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SAustin16
Enlarged Apollo CSM-Based Logistics Vehicle
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37
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19K
Tybarious
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Flyaway
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VIPER Lunar Rover
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6
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2K
Michel Van
Michel Van
A
Various Indian space projects
2
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76
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23K
Flyaway
Flyaway
hesham
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Westinghouse inspection satellite concept (1960)
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5
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2K
World B4
World B4
flateric
Early Maneuverable Reentry Vehicle studies
2 3
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93
Views
48K
flateric
flateric
Triton
Amroc Industrial Launch Vehicle (ILV)
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7
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6K
publiusr
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B
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MOL
3 4 5 6 7 8 9 10 11 12
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457
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152K
blackstar
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sferrin
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MASS: The Manned Anti-Satellite System
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8
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1K
giorgos42gr
G
M
Sänger antipodal bomber
2
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62
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37K
!Mark
!Mark
B
MBB/ERNO (Einstufiger) LuftAtmender Raketen-Träger (LART)
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11
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6K
TsrJoe
TsrJoe
Grey Havoc
Breakthrough Starshot
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18
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8K
Dilandu
Dilandu
hesham
Unknown Spacecraft Projects for Mars
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11
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5K
wayne.mccormick
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hesham
Plane-rocket for tourist flights
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33
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20K
publiusr
P
hesham
Convair/General Dynamics Little Joe 2
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5
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5K
fightingirish
fightingirish
bobbymike
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Stoke Space Reusable Rocket
2
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41
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5K
Archibald
A
hesham
Aerojet Rescue Method of 1960s
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20
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5K
Byeman
B
Michel Van
NASA Space Station Concepts
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28
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9K
Flogger15
F
hesham
Kliper
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23
Views
15K
fightingirish
fightingirish
Flyaway
The Scout Rocket
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0
Views
519
Flyaway
Flyaway
Tuomasn
Ajax (Ayaks) hypersonic vehicles with MHD propulsion
2
Replies
49
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49K
Archibald
A
Michel Van
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ArianeGroup SUSIE (Smart Upper Stage for Innovative Exploration) concept
2
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52
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6K
Rhinocrates
Rhinocrates
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List all weapons of SDI ?
2 3
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107
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21K
bcredman
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Raketyr
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Emilio Herrera - Manned suborbital capsule
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6
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1K
Raketyr
Raketyr
Caravellarella
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United Aircraft Corporation Pogo-Stick Lunar Cabin Vehicle project......
Replies
8
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4K
Foo Fighter
Foo Fighter
Triton
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Boeing Integrated Manned Interplanetary Spacecraft (IMIS) 1968
Replies
31
Views
20K
Archibald
A
flateric
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BAe HOTOL
2 3 4
Replies
151
Views
86K
flateric
flateric
Flyaway
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The Black Arrow & Britain’s Rocket Program
2
Replies
71
Views
8K
zjz
Z
flateric
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Pre-Buran, OK-92 (Orbitalny Korabl', Orbital Craft)
Replies
30
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17K
flateric
flateric
Michel Van
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Junkers Raumtransporters (Junkers space projects)
Replies
30
Views
24K
Michel Van
Michel Van
hesham
Skyrocket Aerospace
Replies
16
Views
1K
Orionblamblam
Orionblamblam
hesham
Bell Hypersonic Rocket Transport spacecraft
Replies
19
Views
13K
NavarchNicias
N
vulture
Lockheed California RAPT two stage to orbit system of 1966
Replies
13
Views
7K
Scott Kenny
S
World B4
Weaponization of orbital vehicles
2
Replies
50
Views
3K
Byeman
B
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