Secret Space Projects

Post thread
Unbuilt and cancelled rocket and spacecraft projects. Not for current or historic produced designs.
overscan (PaulMM)
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Rockwell International Star-Raker
2 3
Replies
101
Views
46K
Archibald
A
Flyaway
Vanguard 1
Replies
4
Views
2K
Grey Havoc
Grey Havoc
Grey Havoc
Startram
Replies
10
Views
5K
publiusr
P
Flyaway
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Geosynchronous Space Situational Awareness Program (GSSAP)
Replies
19
Views
8K
Flyaway
Flyaway
C
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US Lunar Lander Concepts
Replies
31
Views
16K
publiusr
P
RavenOne
Solar Warden - SDI project
Replies
17
Views
9K
GDTI
G
mz
SDI Brilliant Pebbles
2
Replies
47
Views
18K
GDTI
G
bobbymike
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DARPA Blackjack
Replies
27
Views
11K
Scott Kenny
S
C
Strange vehicle and Saturn-IB derived station.
Replies
5
Views
4K
DesScorp
D
TheKutKu
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Early European earth observation satellites projects.
Replies
1
Views
677
TheKutKu
TheKutKu
flateric
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BAe HOTOL
2 3 4
Replies
150
Views
90K
flateric
flateric
nivek626
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DYNA-SOAR wire brush skid
Replies
0
Views
456
nivek626
nivek626
hesham
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Drake-Carman two stage vehicle
Replies
4
Views
3K
SpaceMonk
SpaceMonk
O
Von Braun proposed Mars Spacecraft for the 1980's
Replies
4
Views
4K
publiusr
P
A
DC-X Delta Clipper
2 3
Replies
110
Views
50K
RanulfC
R
Grey Havoc
Soviet Venus probes
Replies
0
Views
453
Grey Havoc
Grey Havoc
athpilot
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McDonnell Douglas X-33 SSTO Reusable Launch Vehicle
Replies
0
Views
752
athpilot
athpilot
flateric
    • Like
Aerospatiale STS-2000
Replies
4
Views
2K
Barrington Bond
B
Jemiba
Blue Streak based satellite transport system
2 3 4 5 6
Replies
225
Views
91K
Barrington Bond
B
Jemiba
Boeing "Boomerang" TSTO
Replies
14
Views
10K
hesham
hesham
sferrin
Hypersoar
Replies
19
Views
9K
publiusr
P
Grey Havoc
Nuwa - Mars Sustainable City (Sustainable Offworld Network)
Replies
3
Views
2K
publiusr
P
Orionblamblam
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X-15B - an orbital X-15
Replies
30
Views
27K
TomcatViP
T
flateric
Lockheed Martin X-33 & Venture Star
2
Replies
59
Views
27K
Archibald
A
B
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Dornier Space Tug
Replies
10
Views
6K
Barrington Bond
B
O
SPS (Solar Power Satellite) Program of the 70's/80's
2
Replies
68
Views
25K
publiusr
P
Triton
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Grumman Advanced Space Construction Base concept
Replies
2
Views
3K
Grey Havoc
Grey Havoc
Z
X-23 PRIME at NMUSAF
Replies
2
Views
1K
alpha_k
A
B
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Bölkow BORAS
Replies
2
Views
719
TheKutKu
TheKutKu
XP67_Moonbat
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Centurion HLV Concept
Replies
2
Views
3K
Grey Havoc
Grey Havoc
flateric
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Hermès Space Shuttle
2 3
Replies
116
Views
51K
TheKutKu
TheKutKu
B
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Ambulance Capsule
Replies
3
Views
851
Barrington Bond
B
hesham
Bell Hypersonic Rocket Transport spacecraft
Replies
20
Views
14K
SpaceMonk
SpaceMonk
Skybolt
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PARSECS - 1960
Replies
22
Views
13K
Barrington Bond
B
S
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BAe Multirole Capsule 1987
2
Replies
43
Views
25K
Archibald
A
Flyaway
Luch-Olymp Russian Military satellite
Replies
7
Views
3K
Flyaway
Flyaway
hesham
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Dassault STAR-H aerospace plane
Replies
6
Views
7K
Barrington Bond
B
B
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MBB Lifting Body Capsule
Replies
1
Views
509
Michel Van
Michel Van
P
Various Soviet top secret space projects
Replies
22
Views
13K
Stargazer
Stargazer
T
    • Like
SDI garage satellites
Replies
22
Views
5K
publiusr
P
Skybolt
Other Apollo Projects: What Should Have Been
2 3 4 5
Replies
175
Views
94K
bobbymike
bobbymike
C
Holy Gemini !!
2
Replies
56
Views
33K
Barrington Bond
B
B
Haven't seen that Blackstar recently?
2 3 4 5 6
Replies
211
Views
74K
XP67_Moonbat
XP67_Moonbat
T
Russian manned moonlander
Replies
31
Views
13K
Michel Van
Michel Van
Orionblamblam
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    • Wow
METEOR: city in space
Replies
31
Views
15K
Scott Kenny
S
Triton
Soviet Lunar Expeditionary Complex
Replies
23
Views
20K
Deleted member 4286
D
hesham
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Republic Aviation Space Vehicle
Replies
7
Views
803
GeorgeA
G
Triton
Late 1960s Space Tug
Replies
21
Views
16K
Deleted member 4286
D
Dynoman
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General Dynamics Triamese (1968)
Replies
33
Views
5K
Deleted member 4286
D
Michel Van
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Douglas ROMBUS
2 3 4
Replies
120
Views
78K
Archibald
A
Michel Van
UR-500MK
Replies
2
Views
5K
Dmitry V.
D
TsrJoe
Yangel R-56 (8K68 )
Replies
17
Views
4K
Dmitry V.
D
Grey Havoc
    • Wow
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Lunar International Laboratory (1960s)
Replies
7
Views
3K
Deleted member 4286
D
P
Space Shuttle External Tanks
Replies
26
Views
12K
Byeman
B
Michel Van
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The (cancelled) second production run of Saturn Vs
2 3 4
Replies
139
Views
68K
Archibald
A
Michel Van
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Reflect Orbital
Replies
6
Views
3K
publiusr
P
hesham
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NASA JIMO
Replies
5
Views
4K
Rhinocrates
Rhinocrates
airrocket
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1980's McDonnell TAV Concepts
Replies
16
Views
11K
Dew
D
SOC
US Navy Space Cruiser & DARPA/USAF Spaceplane Technology and Research (STAR)
Replies
33
Views
15K
Deleted member 4286
D
Graham1973
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Lost Apollo - The LEM Optical Rendezvous System
Replies
0
Views
570
Graham1973
Graham1973
Grey Havoc
Russian National Reusable Space Rocket program
2
Replies
46
Views
9K
Deleted member 4286
D
rallymodeller
PlanetSpace Silver Dart
Replies
11
Views
9K
publiusr
P
Graham1973
    • Like
Thermoelectric Outer Planets Spacecraft (TOPS)
Replies
7
Views
8K
Graham1973
Graham1973
flateric
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    • Wow
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Recoverable Rocket Boosters: A Future That Never Was by Tony R.Landis
Replies
20
Views
4K
Archibald
A
GeminiProgram
Liberty Rocket - Pacific American Launch Systems
Replies
2
Views
1K
martinbayer
M
flateric
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NPO Energiya Pody'om (Lift-off) system - pre-Energiya-Buran
Replies
15
Views
4K
Archibald
A
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"
Replies
7
Views
1K
martinbayer
M
OM
Ryan Saturn I First Stage Recovery via Rogallo Wing
Replies
16
Views
5K
Byeman
B
M
    • Like
European BMD early warning and tracking satellites
Replies
4
Views
2K
Forest Green
Forest Green
Grey Havoc
ESA 'Lunar Village' proposal
Replies
12
Views
6K
BlueAbyssal
BlueAbyssal
hesham
    • Like
Aerojet-General Space Glider of 1961
Replies
1
Views
800
XP67_Moonbat
XP67_Moonbat
P
    • Like
SERV - 1971 VTOVL alternate shuttle proposal
Replies
24
Views
17K
martinbayer
M
S
Spiral / "50/50" TSTO
2
Replies
51
Views
23K
publiusr
P
SAustin16
Enlarged Apollo CSM-Based Logistics Vehicle
Replies
37
Views
19K
Tybarious
T
hesham
    • Like
Westinghouse inspection satellite concept (1960)
Replies
5
Views
3K
World B4
World B4
Triton
Amroc Industrial Launch Vehicle (ILV)
Replies
7
Views
7K
publiusr
P
sferrin
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MASS: The Manned Anti-Satellite System
Replies
8
Views
2K
giorgos42gr
G
M
Sänger antipodal bomber
2
Replies
62
Views
39K
!Mark
!Mark
Tuomasn
Sänger II aerospaceplane project
2
Replies
66
Views
41K
TsrJoe
TsrJoe
Grey Havoc
Breakthrough Starshot
Replies
18
Views
9K
Dilandu
Dilandu
hesham
Plane-rocket for tourist flights
Replies
33
Views
22K
publiusr
P
hesham
Convair/General Dynamics Little Joe 2
Replies
5
Views
5K
fightingirish
fightingirish
hesham
Aerojet Rescue Method of 1960s
Replies
20
Views
5K
Byeman
B
hesham
Kliper
Replies
23
Views
16K
fightingirish
fightingirish
Flyaway
The Scout Rocket
Replies
0
Views
795
Flyaway
Flyaway
Tuomasn
Ajax (Ayaks) hypersonic vehicles with MHD propulsion
2
Replies
49
Views
51K
Archibald
A
Michel Van
    • Like
ArianeGroup SUSIE (Smart Upper Stage for Innovative Exploration) concept
2
Replies
52
Views
7K
Rhinocrates
Rhinocrates
Raketyr
    • Like
    • Wow
Emilio Herrera - Manned suborbital capsule
Replies
6
Views
2K
Raketyr
Raketyr
Caravellarella
    • Like
United Aircraft Corporation Pogo-Stick Lunar Cabin Vehicle project......
Replies
8
Views
5K
Foo Fighter
Foo Fighter
Triton
    • Like
Boeing Integrated Manned Interplanetary Spacecraft (IMIS) 1968
Replies
31
Views
21K
Archibald
A
Flyaway
    • Like
The Black Arrow & Britain’s Rocket Program
2
Replies
71
Views
9K
zjz
Z
flateric
    • Like
Pre-Buran, OK-92 (Orbitalny Korabl', Orbital Craft)
Replies
30
Views
18K
flateric
flateric
Michel Van
    • Like
Junkers Raumtransporters (Junkers space projects)
Replies
30
Views
26K
Michel Van
Michel Van
hesham
Skyrocket Aerospace
Replies
16
Views
2K
Orionblamblam
Orionblamblam
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
4K
Byeman
B
robunos
Japan launches the smallest rocket to ever carry a satellite to orbit
Replies
9
Views
3K
publiusr
P
bobbymike
    • Like
New agreement enables U.S. launches from Australian spaceports
Replies
1
Views
706
Scott Kenny
S
P
    • Wow
George L. von Pragenau Shuttle patents
Replies
14
Views
1K
XP67_Moonbat
XP67_Moonbat
FutureSpaceTourist
Interorbital Systems launch vehicles
Replies
17
Views
9K
Byeman
B
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