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Secret (Unbuilt) Projects
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Secret Postwar Aircraft Projects
Unbuilt and cancelled aviation projects since 1945. Designs that never made to production.
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Revised Posting Guidelines - PLEASE READ!
Antonio
Oct 24, 2006
Replies
4
Views
28K
Apr 28, 2018
Stargazer2006
S
Arsenal de l'aéronautique ("Arsenal") projects
Jemiba
Jul 2, 2006
2
Replies
70
Views
29K
3 minutes ago
hesham
AMSA Program & B-1 Bomber projects
overscan (PaulMM)
Jul 14, 2006
4
5
6
Replies
228
Views
97K
10 minutes ago
TomcatViP
T
Boeing Model 2020 "Klingon Super Cruiser" and the Super Clippers
Matej
Jan 8, 2008
Replies
6
Views
2K
Today at 8:43 AM
Zeppelin
SNCAN (Nord Aviation) and Nord-SFECMAS Projects
hesham
Sep 5, 2006
2
Replies
55
Views
15K
Today at 7:33 AM
blackkite
SNCASE (Sud-Est Aviation) Projects
hesham
Sep 18, 2006
2
Replies
66
Views
20K
Today at 7:13 AM
blackkite
Secret Stealth VTOL Transport - "Senior Citizen"
flateric
Jun 22, 2006
4
5
6
Replies
201
Views
117K
Today at 1:20 AM
overscan (PaulMM)
R
Argentinian Unbuilt Projects
raravia
Apr 7, 2006
3
4
5
Replies
182
Views
90K
Yesterday at 9:56 PM
NoBarrelRolls
N
BAC 2-11 & 3-11
hesham
May 24, 2008
Replies
31
Views
43K
Yesterday at 6:23 PM
hesham
North American X-15 - Variants and Projects
hesham
Oct 30, 2012
Replies
24
Views
9K
Yesterday at 4:53 PM
hesham
A
HIMAT and the other AFTI Projects
Andreas Parsch
Mar 2, 2006
2
3
4
Replies
127
Views
83K
Yesterday at 2:06 PM
hesham
C
Lockheed C-130 Hercules Seaplane/Amphibious Versions
CammNut
Oct 31, 2007
Replies
29
Views
10K
Yesterday at 11:15 AM
TomcatViP
T
Tupolev '108' Composite Bomber & Developments
Vasily41
May 17, 2020
Replies
3
Views
606
Yesterday at 6:47 AM
Basil
B
SNCAN (Nord) "Griffon" developments and other high-speed projects
Antonio
Mar 31, 2006
2
Replies
53
Views
29K
Yesterday at 1:37 AM
blackkite
J
Flying Cars And Roadable Aircraft
Justo Miranda
Feb 4, 2008
10
11
12
Replies
445
Views
166K
Monday at 9:42 PM
Grey Havoc
Czechoslovakian helicopters, Prototypes & Projects
Matej
Jun 23, 2006
Replies
34
Views
15K
Monday at 7:03 PM
hesham
K
Atlas/Aerotek ACE/Ovid NGT
kaiserbill
Mar 22, 2012
Replies
22
Views
12K
Monday at 5:56 PM
Henry Mitchell Berry
H
Fairchild A-10 Projects
overscan (PaulMM)
Mar 18, 2006
2
3
4
Replies
135
Views
82K
Monday at 5:54 PM
Foo Fighter
Gyrodyne projects
hesham
Nov 23, 2006
2
Replies
45
Views
24K
Monday at 5:16 PM
hesham
Nuclear Powered Aircraft Projects
Antonio
Sep 29, 2006
6
7
8
Replies
284
Views
126K
Monday at 5:12 PM
edwest
E
S
US Navy 1951 Observation / Liaison helicopter competition
Stargazer2006
Apr 24, 2010
Replies
10
Views
4K
Monday at 3:06 PM
hesham
US Supersonic Transport (SST) Program 1960-1971
Orionblamblam
Apr 9, 2006
30
31
32
Replies
1K
Views
378K
Monday at 2:18 PM
blackkite
Various Bristol postwar projects
overscan (PaulMM)
Oct 8, 2006
Replies
31
Views
11K
Monday at 10:38 AM
Bing
Postwar Burnelli Designs
hesham
Aug 26, 2008
2
Replies
72
Views
22K
Monday at 9:34 AM
fightingirish
Lockheed Model 75 Saturn
Triton
Aug 23, 2010
Replies
6
Views
4K
Sunday at 11:22 PM
jmnjohn
J
P
USAF ‘Improved Manned Interceptor’ (IMI) Program
Pioneer
Jun 24, 2006
2
Replies
50
Views
36K
Sunday at 11:03 PM
RLBH
R
Fairchild VSTOL/STOL Projects
hesham
Jul 17, 2007
Replies
17
Views
9K
Sunday at 10:31 PM
fightingirish
Fairchild FX fighter project (rival to the McDonnell-Douglas F-15)
overscan (PaulMM)
Aug 7, 2006
2
Replies
77
Views
35K
Sunday at 10:02 PM
Pioneer
P
Republic F-84 Thunderjet & Thunderstreak: Prototypes and Projects
hesham
Jul 20, 2008
Replies
35
Views
20K
Sunday at 8:35 PM
fightingirish
Small Transport Aircraft Projects
hesham
Jun 24, 2009
Replies
6
Views
4K
Sunday at 8:19 PM
fightingirish
Fairchild Hiller civil lift-fans
Jemiba
Jan 2, 2008
Replies
10
Views
5K
Sunday at 7:59 PM
fightingirish
Postwar CASA transport projects
Antonio
Mar 26, 2006
Replies
32
Views
11K
Sunday at 6:50 PM
riggerrob
R
Republic RC-4 airliner
hesham
Aug 9, 2008
Replies
2
Views
2K
Sunday at 3:42 PM
Silencer1
S
NA-211, NA-212 - NAA projects from Sabre to F-107
overscan (PaulMM)
Aug 19, 2007
Replies
39
Views
21K
Sunday at 2:41 PM
Dan Fahey
D
SNECMA VTOL programs
MIRAGE 4000
Aug 14, 2008
Replies
34
Views
16K
Sunday at 1:20 PM
blackkite
D
Unbuilt, experimental and unusual Boeing 747s
Dronte
Jul 31, 2006
5
6
7
Replies
262
Views
118K
Sunday at 1:09 AM
dfthu
D
T
Gloster Meteor: special one-of-a-kind aircraft and unbuilt variants
toura
Jan 23, 2009
Replies
39
Views
17K
Saturday at 11:13 PM
iverson
I
Polish Motor Glider & Ultra-Light Aircraft Projects
hesham
Mar 27, 2016
Replies
3
Views
1K
Saturday at 7:39 PM
hesham
Bell Model 206L « TexasRanger » gunship
RavenOne
Mar 17, 2010
Replies
8
Views
4K
Saturday at 7:35 PM
500 Fan
5
Fiat G.91Y/T and G.91Y/S
hesham
Apr 4, 2010
Replies
7
Views
2K
Saturday at 6:22 PM
blockhaj
Tupolev Tu-91 « Bychok » carrier-borne attack (NATO: "Boot")
Bailey
Dec 1, 2009
Replies
38
Views
24K
Saturday at 6:20 PM
Vasily41
Darrol Stinton Aircraft Projects
hesham
Aug 15, 2009
Replies
22
Views
8K
Saturday at 12:27 PM
hesham
Air-Metal Flugzeugbau und Entwicklungs GmbH
Maveric
Mar 15, 2020
Replies
8
Views
639
Saturday at 8:50 AM
richard B
1973 requirement SOR 206 : AWACS competitors
boxkite
Jul 12, 2006
2
3
4
Replies
121
Views
49K
Saturday at 8:49 AM
overscan (PaulMM)
DARPA/USAF Force Application and Launch from CONUS (FALCON) program
hesham
Aug 21, 2007
3
4
5
Replies
179
Views
79K
Saturday at 5:51 AM
KHambsch
K
LVL-2
Matej
Oct 22, 2006
Replies
11
Views
5K
Friday at 8:31 PM
hesham
C-130 V/STOL modification projects
Jemiba
Jun 10, 2007
2
3
Replies
86
Views
45K
Friday at 8:29 PM
mr5oa
A
BAC/Sud Aviation Concorde - Development, Variants, Projects
Archibald
Sep 5, 2006
3
4
5
Replies
167
Views
52K
Friday at 3:52 PM
nuuumannn
N
Boeing Vertol BV-235 (AAH contender)
overscan (PaulMM)
Aug 3, 2006
Replies
32
Views
42K
Friday at 10:42 AM
drejr
D
B-58 Design Evolution
Skybolt
Feb 16, 2007
2
Replies
50
Views
29K
Friday at 8:52 AM
taildragger
SNCAN (Nord) 5000 « Harpon »
Sundog
Aug 19, 2006
Replies
16
Views
5K
Friday at 7:59 AM
blackkite
Ultra-Light Aircraft/LSA Projects
hesham
Mar 30, 2007
2
3
Replies
97
Views
49K
Thursday at 11:00 PM
hesham
Various UAV and UCAV designs from Europe
hesham
Jun 9, 2007
2
Replies
57
Views
101K
Thursday at 7:22 PM
Grey Havoc
Avro Ashton schemes
inkworm
Sep 3, 2013
Replies
5
Views
2K
Thursday at 6:27 AM
nuuumannn
N
U
Myasishchev M-50 and M-52 concepts
ucon
Nov 25, 2008
2
3
Replies
98
Views
29K
Thursday at 6:10 AM
nuuumannn
N
Curtiss-Wright CW-32
hesham
Nov 9, 2008
Replies
22
Views
12K
Thursday at 5:28 AM
jmnjohn
J
Various UAV and UCAV designs from the USA
flateric
May 19, 2007
7
8
9
Replies
339
Views
119K
Thursday at 12:29 AM
bobbymike
C-130 Hercules Projects
hesham
Jun 21, 2007
3
4
5
Replies
161
Views
87K
May 20, 2020
fightingirish
Boeing Spanloader designs
hesham
Jan 7, 2008
Replies
37
Views
17K
May 20, 2020
hesham
McDonnell Douglas Spanloader concept
Triton
Sep 1, 2009
Replies
8
Views
3K
May 20, 2020
hesham
Lockheed AH-56 Cheyenne and derivatives
Jemiba
Oct 21, 2006
7
8
9
Replies
341
Views
133K
May 20, 2020
jmspeedfreak
J
Various UAV and UCAV designs of unidentified origin
hesham
Jul 1, 2008
Replies
39
Views
8K
May 20, 2020
bobbymike
Morane-Saulnier MS 1000, MS 1010 and MS 1020 jet fighters
hesham
May 4, 2008
Replies
6
Views
5K
May 20, 2020
blackkite
R
Unidentified Chinese projects
rousseau
Aug 31, 2006
2
3
Replies
84
Views
63K
May 19, 2020
Sam-Yukikaze
S
S
MiG-25 Supersonic Bizjet
SidewinderX
Dec 17, 2010
Replies
11
Views
6K
May 19, 2020
Motocar
French Light Civil Aircraft & Helicopter Projects and Prototypes
hesham
Sep 8, 2006
2
3
Replies
94
Views
18K
May 19, 2020
hesham
F
SNCASE (Sud-Est) SE.1010
flying-finn
Apr 3, 2010
Replies
23
Views
10K
May 19, 2020
blackkite
G
The "Mega-jet" giant airliner proposal
gabrielorosco
May 7, 2020
Replies
3
Views
677
May 18, 2020
gabrielorosco
G
Boeing NLA
Triton
Sep 10, 2012
2
Replies
43
Views
11K
May 18, 2020
fightingirish
British Little Known Civil Helicopters and Gyroplanes
hesham
Mar 23, 2016
Replies
11
Views
2K
May 18, 2020
hesham
SIAI-Marchetti Projects and Prototypes
hesham
Mar 6, 2020
Replies
4
Views
744
May 18, 2020
zeroc
SNCASO (Sud-Ouest Aviation) Projects
hesham
Jul 2, 2006
2
Replies
78
Views
24K
May 18, 2020
blackkite
Fokker Partner twin boom aircraft
hesham
Nov 10, 2008
Replies
3
Views
2K
May 17, 2020
Bazinga
Brazilian CTA Heliconair HC-1 Convertiplano by Dr. Focke
hesham
Aug 3, 2007
Replies
18
Views
12K
May 16, 2020
Foo Fighter
Boeing airliner and transport projects
Orionblamblam
Apr 9, 2006
2
Replies
73
Views
27K
May 16, 2020
hesham
Messerschmitt Postwar Projects
fightingirish
Jun 1, 2013
Replies
34
Views
2K
May 16, 2020
hesham
Bristol Helicopters
JFC Fuller
Nov 1, 2007
2
Replies
60
Views
20K
May 16, 2020
CJGibson
SNCAC (Aérocentre) projects
hesham
Jun 30, 2006
2
Replies
66
Views
22K
May 15, 2020
robunos
Ambrosini Postwar Projects and Prototypes
Jemiba
Oct 20, 2006
Replies
26
Views
6K
May 15, 2020
nuuumannn
N
E
LARA (Light Armed Reconnaissance Aircraft)
elmayerle
Apr 1, 2006
4
5
6
Replies
235
Views
119K
May 14, 2020
jmspeedfreak
J
Bristol Brabazon
hesham
Mar 20, 2008
Replies
27
Views
8K
May 14, 2020
Dilandu
Westland Helicopter Projects
hesham
Jun 9, 2007
2
Replies
61
Views
27K
May 14, 2020
Ekimwest
E
Yakovlev Yak-44E
Matej
Aug 14, 2007
Replies
27
Views
18K
May 14, 2020
T-50
T
Brantly Helicopter Projects
hesham
Jul 14, 2007
Replies
10
Views
4K
May 14, 2020
heli-archive Bazzani
H
Swiss Little Known Helicopters,Light Aircraft and Projects
hesham
Apr 21, 2019
Replies
15
Views
2K
May 14, 2020
Apophenia
Little-known American Helicopter Prototypes & Projects
hesham
Oct 11, 2006
2
3
4
Replies
134
Views
38K
May 14, 2020
Apophenia
Tupolev Tu-123 Yastreb
VTOLicious
May 12, 2020
Replies
12
Views
706
May 13, 2020
boxkite
NASA Aircraft Projects
hesham
Sep 2, 2007
4
5
6
Replies
201
Views
125K
May 13, 2020
hesham
German Helicopter Prototypes & Projects
hesham
May 18, 2007
2
Replies
47
Views
12K
May 12, 2020
Maveric
IPTN Aircraft and Projects
hesham
May 17, 2008
Replies
10
Views
6K
May 12, 2020
hesham
N
Competition of the LOH - YHO-4, YHO-5 and YHO-6
nugo
May 29, 2009
Replies
22
Views
10K
May 11, 2020
P-STICKNEY
P
Lockheed S-3 Viking Variants and Projects
Abraham Gubler
May 1, 2008
2
Replies
74
Views
43K
May 11, 2020
riggerrob
R
Leduc 010, 021, 022
Michel Van
Jan 23, 2008
2
Replies
62
Views
19K
May 11, 2020
blackkite
P
Northrop P-530 / P-600 / P-610 / YF-17 Design Evolution
Pioneer
Jul 1, 2006
2
3
4
Replies
125
Views
78K
May 11, 2020
Boxman
B
J
Convair XP/F-92 - Development and Prototype
Justo Miranda
Jan 22, 2008
2
Replies
53
Views
26K
May 11, 2020
hesham
Hughes XH-17 Helicopter Early Concept
hesham
Feb 15, 2008
Replies
2
Views
3K
May 11, 2020
hesham
Japanese T-1 trainer project
blackkite
Feb 5, 2014
Replies
22
Views
4K
May 10, 2020
Grey Havoc
Soviet student/universities projects (MAI, KhAI, etc.)
hesham
Apr 14, 2008
2
Replies
58
Views
31K
May 10, 2020
hesham
Postwar Beriev flying boat and amphibian projects
Triton
Aug 28, 2009
2
Replies
42
Views
15K
May 9, 2020
borovik
B
C-130 L-400 - The Twin Engine "Half Hercules?"
TinWing
Apr 6, 2007
Replies
24
Views
12K
May 9, 2020
redwitch
Portsmouth Aviation Aerocar
Bailey
Feb 15, 2010
Replies
14
Views
8K
May 9, 2020
hesham
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