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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
29K
Apr 28, 2018
Stargazer2006
S
H
BAE SYSTEMS Nimrod MRA.4
Hobbes
Jul 1, 2019
3
4
5
Replies
190
Views
12K
29 minutes ago
Zootycoon
Z
Stanisław Sobkow Post-WWII Designs
hesham
Apr 2, 2016
Replies
6
Views
1K
54 minutes ago
persil
P
Boeing Chinook Projects
Triton
Sep 10, 2012
2
3
Replies
82
Views
13K
Today at 9:11 PM
TomcatViP
T
Vought (LTV) A-7 Corsair II Projects
overscan (PaulMM)
Jan 2, 2006
3
4
5
Replies
162
Views
102K
Today at 9:10 PM
SSgtC
P
EE Canberra, Evolution, Variants and Projects
Pioneer
Sep 5, 2006
2
3
Replies
90
Views
50K
Today at 5:13 AM
CJGibson
FMA I Ae.28 Super calquin
blockhaj
Jun 15, 2017
Replies
16
Views
3K
Today at 4:03 AM
Erdosain
F-4 Phantom II for the US Army?
ksimmelink
Mar 30, 2013
Replies
33
Views
13K
Yesterday at 9:33 PM
RavenOne
R
Fairey Rotodyne
rocketeer
Nov 24, 2006
2
Replies
79
Views
37K
Yesterday at 9:22 PM
JohnR
J
USAF CARA Competition and its Projects
hesham
Jan 22, 2015
Replies
11
Views
4K
Yesterday at 1:32 PM
hesham
Ryan Liftfan VTOL designs & the XV-5
Antonio
Mar 24, 2006
3
4
5
Replies
167
Views
70K
Yesterday at 1:24 PM
hesham
P
Saab Viggen concepts and unbuilt versions
Pioneer
Jun 21, 2018
Replies
19
Views
5K
Yesterday at 9:35 AM
mat
M
Mach Buster Supersonic Turboprop Aircraft
hesham
Mar 17, 2014
Replies
35
Views
14K
Tuesday at 7:33 PM
Zootycoon
Z
Various post-war Yakovlev (Yak) projects
hesham
Feb 23, 2007
3
4
5
Replies
174
Views
72K
Tuesday at 2:51 PM
FighterJock
Little-known American Helicopter Prototypes & Projects
hesham
Oct 11, 2006
2
3
4
Replies
140
Views
40K
Monday at 7:45 PM
Grey Havoc
Republic VTOL/VSTOL/STOL projects
Antonio
Apr 20, 2006
Replies
24
Views
12K
Monday at 3:59 PM
hesham
R
Navy AX and A/F-X projects
Rafael
Jul 16, 2007
5
6
7
Replies
271
Views
136K
Monday at 2:02 PM
Ingraman
I
Chinese Y-7 AWACS and KJ-600 AWACS
Deino
May 4, 2011
2
Replies
49
Views
15K
Monday at 11:41 AM
hesham
I
Chengdu J-7 unbuilt variant
iPhone6Minus
Apr 22, 2020
Replies
3
Views
759
Monday at 11:39 AM
hesham
Changhe Z-11 Helicopter
hesham
Monday at 11:36 AM
Replies
0
Views
168
Monday at 11:36 AM
hesham
F
Early concepts for Avro Vulcan
fredgell
Jun 13, 2008
Replies
23
Views
12K
Monday at 11:23 AM
hesham
Sikorsky S-67 Blackhawk
sferrin
Feb 17, 2008
2
3
4
Replies
146
Views
63K
Monday at 2:16 AM
apparition13
A
Avro Vulcan Projects & Testbed Variants
hesham
Apr 28, 2020
Replies
4
Views
678
Sunday at 10:59 PM
Grey Havoc
P
North American Aviation ‘North American General Purpose Attack Weapon’ - NAGPAW
Pioneer
Aug 28, 2006
2
Replies
56
Views
25K
Sunday at 10:19 PM
Grey Havoc
A
Boeing JAST / JSF / X-32 projects
Archibald
Jul 11, 2007
6
7
8
Replies
290
Views
143K
Sunday at 10:09 PM
flateric
Sikorsky S-71 (AAH contender)
overscan (PaulMM)
Aug 30, 2006
Replies
18
Views
7K
Sunday at 6:22 PM
Grey Havoc
J
Flying Cars And Roadable Aircraft
Justo Miranda
Feb 4, 2008
10
11
12
Replies
453
Views
170K
Sunday at 4:34 PM
dannydale
S
Can the C-17 transport aircraft be used as a AWACS &airborne refueling aircraft?
silkmonkey
Jul 4, 2009
Replies
17
Views
4K
Sunday at 2:45 PM
riggerrob
R
A
CAC Postwar Projects
Armchair Admiral
Feb 14, 2007
2
3
Replies
112
Views
59K
Sunday at 12:23 PM
Wondera1234
W
Saab Project 518: An Ongoing Proposal for EUROTRAINING
TinWing
Mar 9, 2006
Replies
9
Views
9K
Saturday at 7:23 PM
Grey Havoc
NASA Aircraft Projects
hesham
Sep 2, 2007
4
5
6
Replies
202
Views
126K
Saturday at 7:20 PM
Grey Havoc
Unknown Douglas Convertaplane
taildragger
Friday at 4:04 AM
Replies
9
Views
473
Saturday at 1:03 PM
Grey Havoc
British Light Aircraft Projects
hesham
Mar 15, 2010
Replies
3
Views
2K
Friday at 1:21 PM
hesham
L
Mikoyan E-721?
lancer21
Jun 10, 2010
Replies
24
Views
14K
Sep 17, 2020
flateric
Republic AP-47 Mixed-Power Ground Support Thunderbolt Proposal of 1948
jzichek
Jan 25, 2012
Replies
5
Views
3K
Sep 17, 2020
hesham
Hélicop-Air L-50 Girhel light autogiro project......
Caravellarella
Jun 5, 2011
Replies
23
Views
6K
Sep 17, 2020
avion ancien
Grover Loening Air Cargo Seaplane
Nick Sumner
Sep 16, 2020
Replies
1
Views
237
Sep 16, 2020
hesham
Exosonic low-boom SSBJ project
Grey Havoc
Sep 3, 2020
Replies
21
Views
1K
Sep 15, 2020
Zootycoon
Z
W
Third-world countries' aircraft projects
windingroad
Oct 7, 2006
Replies
38
Views
20K
Sep 15, 2020
riggerrob
R
Lockheed Constellation projects
hesham
Jul 17, 2010
2
Replies
53
Views
21K
Sep 14, 2020
Richard N
S
Vickers 718
smurf
Nov 22, 2008
Replies
15
Views
5K
Sep 14, 2020
hesham
US NAVY ATA (Advanced Tactical Aircraft) program: A-12 Avenger II & its rivals
overscan (PaulMM)
Dec 9, 2006
7
8
9
Replies
343
Views
172K
Sep 14, 2020
apparition13
A
D
Unbuilt, experimental and unusual Boeing 747s
Dronte
Jul 31, 2006
5
6
7
Replies
270
Views
122K
Sep 13, 2020
Grey Havoc
UK aircraft mockups
Johnbr
Sep 12, 2013
Replies
11
Views
11K
Sep 13, 2020
Ingraman
I
May be,this was Thieblot TA-13 canard cargo airplane
hesham
Apr 29, 2010
Replies
4
Views
3K
Sep 13, 2020
hesham
L
Saab 35 Draken Projects
Lockon
Jan 1, 2008
Replies
13
Views
7K
Sep 12, 2020
overscan (PaulMM)
Thieblot Aircraft Engineering Company
Maveric
Sep 12, 2020
Replies
1
Views
155
Sep 12, 2020
hesham
Il-86 precursors
Maveric
May 21, 2008
Replies
5
Views
4K
Sep 12, 2020
hesham
S
UK SST projects
starviking
Aug 8, 2007
2
3
4
Replies
123
Views
35K
Sep 12, 2020
hesham
Twin-engined DC-10 project
hesham
Apr 29, 2008
Replies
18
Views
13K
Sep 12, 2020
hesham
MiG PAK DP (Prospective Airborne Complex of Long-Range Intercept) Program (MiG-41)
Triton
Apr 15, 2013
2
3
4
Replies
140
Views
55K
Sep 12, 2020
kaiserbill
K
Mirage 4000
TinWing
Jan 10, 2006
2
3
4
Replies
122
Views
45K
Sep 11, 2020
NoBarrelRolls
N
Del Mar helicopters
Jemiba
Apr 19, 2012
Replies
8
Views
3K
Sep 10, 2020
yasotay
Air-Metal Flugzeugbau und Entwicklungs GmbH
Maveric
Mar 15, 2020
Replies
9
Views
1K
Sep 10, 2020
hesham
Flying Flapjacks
cluttonfred
Feb 7, 2009
2
3
Replies
112
Views
42K
Sep 10, 2020
FXXII
F
K
Various aviation projects from South Africa
kaiserbill
Aug 6, 2013
4
5
6
Replies
223
Views
85K
Sep 10, 2020
Deltafan
US Supersonic Transport (SST) Program 1960-1971
Orionblamblam
Apr 9, 2006
30
31
32
Replies
1K
Views
389K
Sep 10, 2020
TomcatViP
T
Boeing 787 concepts
Triton
Jul 27, 2009
4
5
6
Replies
239
Views
83K
Sep 9, 2020
Grey Havoc
A
Mil' Mi-38 (Mi-382 and Mi-383 PDTV)
Austin
Nov 18, 2010
Replies
19
Views
11K
Sep 9, 2020
riggerrob
R
Republic Model 10, SST from 1963
Skybolt
Jun 24, 2008
2
Replies
40
Views
12K
Sep 9, 2020
galgot
AH-64 Apache Projects
overscan (PaulMM)
May 22, 2006
3
4
5
Replies
177
Views
46K
Sep 9, 2020
Grey Havoc
AIDC F-CK-1 Ching-kuo Projects & Derivatives
GTX
May 2, 2018
Replies
36
Views
6K
Sep 9, 2020
Ingraman
I
R
Argentinian Unbuilt Projects
raravia
Apr 7, 2006
4
5
6
Replies
236
Views
96K
Sep 8, 2020
Erdosain
Blended Wing Bodies
Orionblamblam
Aug 17, 2007
3
4
5
Replies
160
Views
58K
Sep 8, 2020
Fluff
F
P
Advanced Medium STOL Transport (AMST) and its predecessors
Pioneer
Jul 27, 2006
3
4
5
Replies
185
Views
74K
Sep 8, 2020
Hank58
A-18 (AW)
Tailspin Turtle
Jun 30, 2008
Replies
3
Views
4K
Sep 6, 2020
Ingraman
I
S
Chinese J-6 VTOL project
shin_getter
Sep 6, 2020
Replies
2
Views
385
Sep 6, 2020
shin_getter
S
GOR-38 Competition ?
hesham
Sep 6, 2020
Replies
0
Views
256
Sep 6, 2020
hesham
Hongdu Aircraft & Projects
hesham
Oct 15, 2010
Replies
12
Views
5K
Sep 6, 2020
hesham
P
VSX / TS-160: Alternatives to the S-3 Viking
Pioneer
Jun 19, 2006
2
Replies
71
Views
41K
Sep 6, 2020
overscan (PaulMM)
Hawker Hunter Precursor and Follow-on Projects
hesham
Sep 13, 2006
2
Replies
52
Views
16K
Sep 5, 2020
overscan (PaulMM)
Big-wing F-5s and F-5G/F-20 alternative designs
BillRo
May 30, 2008
2
3
Replies
89
Views
42K
Sep 4, 2020
NUSNA_Moebius
N
Light Attack Support for Special Operations (LASSO)
Grey Havoc
Aug 2, 2017
Replies
1
Views
1K
Sep 4, 2020
jsport
J
Vought XF8U-3 Crusader III
boxkite
Nov 5, 2006
4
5
6
Replies
213
Views
89K
Sep 3, 2020
KJ_Lesnick
K
Hermeus hypersonic aircraft project
TomS
May 15, 2019
Replies
7
Views
177
Sep 2, 2020
TomS
McDonnell-Douglas F-15 Projects
overscan (PaulMM)
Dec 28, 2005
3
4
5
Replies
199
Views
145K
Sep 1, 2020
taildragger
SNCASE (Sud-Est Aviation) Projects
hesham
Sep 18, 2006
2
Replies
71
Views
23K
Sep 1, 2020
Deltafan
MiG izdeliye-41
BESTUZHEV
Aug 21, 2020
Replies
36
Views
3K
Sep 1, 2020
BESTUZHEV
L
Boeing 7J7
Libelle
Feb 29, 2008
Replies
26
Views
18K
Aug 31, 2020
Grey Havoc
Cargo-Experimental (C-X) program designs
overscan (PaulMM)
Apr 9, 2006
2
Replies
44
Views
17K
Aug 31, 2020
hesham
M
Seeking Soviet Experimental/Concept Aircraft (especially from the 70s or 80s)
Maverick2599
Aug 27, 2020
Replies
9
Views
845
Aug 31, 2020
Trident
T
Myasishchev M-60
flateric
Jun 17, 2006
Replies
35
Views
52K
Aug 30, 2020
fightingirish
Canadair CL-45 ASW Helicopter Project
hesham
Feb 15, 2017
Replies
8
Views
2K
Aug 30, 2020
riggerrob
R
H
Swedish Project XXXX (1975)
Hexelarity
Oct 1, 2018
Replies
5
Views
2K
Aug 30, 2020
Grey Havoc
Canadair/General Dynamics CL-84 Projects
overscan (PaulMM)
Feb 20, 2006
2
3
Replies
95
Views
39K
Aug 30, 2020
Michel Van
Canadair CL-200
Retrofit
Mar 22, 2009
Replies
13
Views
2K
Aug 29, 2020
Richard N
Canadair Projects
hesham
Aug 29, 2020
Replies
0
Views
252
Aug 29, 2020
hesham
Advanced Harrier Projects
overscan (PaulMM)
Apr 1, 2006
2
3
Replies
117
Views
80K
Aug 28, 2020
Sundog
Multi-purpose STOL transports
Antonio
Sep 30, 2006
2
3
Replies
109
Views
71K
Aug 28, 2020
Apophenia
Sikorsky S-61 prototypes and projects
Caravellarella
Jun 7, 2011
Replies
32
Views
11K
Aug 28, 2020
LOLCOS81
L
Sukhoi Su-17M5 Fixed Wing Fitter project
hesham
Feb 19, 2015
Replies
13
Views
573
Aug 28, 2020
Avimimus
Alternate UTTAS designs from Bell, Sikorsky and Boeing
uk 75
Aug 11, 2007
Replies
37
Views
16K
Aug 28, 2020
Pioneer
P
Ilyushin Unbuilt Projects
hesham
Oct 1, 2006
4
5
6
Replies
202
Views
82K
Aug 28, 2020
flateric
P
Mil Mi-26NEF-M ASW helicopters?
Pioneer
Jun 6, 2008
Replies
19
Views
4K
Aug 27, 2020
Wyvern
The Way for Sud Aviation Caravelle
hesham
Oct 1, 2013
Replies
26
Views
9K
Aug 27, 2020
sgeorges4
S
Lockheed S-3 Viking Variants and Projects
Abraham Gubler
May 1, 2008
2
Replies
78
Views
45K
Aug 27, 2020
Pioneer
P
Sukhoi S-6 project (Early Su-24 concept)
Thorvic
Oct 12, 2006
Replies
17
Views
8K
Aug 26, 2020
Vasily41
Jet-Craft and other DH Vampire executive jet projects
Jemiba
Jun 1, 2007
Replies
9
Views
8K
Aug 26, 2020
riggerrob
R
J
Sukhanov Diskoplan Gliders
Justo Miranda
Aug 26, 2020
Replies
0
Views
195
Aug 26, 2020
Justo Miranda
J
C-130 Hercules Projects
hesham
Jun 21, 2007
3
4
5
Replies
165
Views
90K
Aug 25, 2020
hesham
C-130 V/STOL modification projects
Jemiba
Jun 10, 2007
2
3
Replies
88
Views
47K
Aug 25, 2020
fightingirish
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