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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
V
F-86 Prototype
verner
Dec 13, 2009
2
Replies
45
Views
9K
2 minutes ago
kitnut617
K
Little-known American Helicopter Prototypes & Projects
hesham
Oct 11, 2006
2
3
4
Replies
127
Views
36K
Yesterday at 9:31 PM
Stingray
Evolution of the Eurofighter Typhoon: TKF-90, AST 396, AST.403 and more
overscan (PaulMM)
Mar 22, 2006
4
5
6
Replies
238
Views
154K
Yesterday at 9:15 PM
overscan (PaulMM)
A-4 Skyhawk 105 millimetre gun
Wyvern
Thursday at 3:39 PM
Replies
17
Views
673
Yesterday at 8:26 PM
iverson
I
Various Handley Page civilian aircraft designs
Jemiba
Mar 31, 2006
Replies
39
Views
13K
Yesterday at 7:16 PM
Bing
Flying Flapjacks
cluttonfred
Feb 7, 2009
2
3
Replies
109
Views
39K
Yesterday at 7:09 PM
Sundog
B
Northrop Flying Wing with boundary layer control slots.
Barrington Bond
Apr 5, 2008
Replies
5
Views
3K
Yesterday at 4:40 PM
TomcatViP
T
Bristol Helicopters
JFC Fuller
Nov 1, 2007
Replies
35
Views
18K
Yesterday at 4:02 PM
Ekimwest
E
SNCASE (Sud-Est Aviation) projects
hesham
Sep 18, 2006
2
Replies
49
Views
19K
Yesterday at 2:28 PM
hesham
CIA A-12 almost sold to Iran!!!!!!!!!!!!!!!!
Matej
Aug 29, 2006
Replies
10
Views
6K
Yesterday at 2:05 PM
TsrJoe
1960 Boeing Wind Tunnel Model - 712, 721?
hesham
Jan 20, 2016
Replies
3
Views
119
Yesterday at 1:27 PM
hesham
Bölkow helicopter projects
hesham
Jul 13, 2007
Replies
16
Views
8K
Yesterday at 9:05 AM
richard B
AH-64 Apache Projects
overscan (PaulMM)
May 22, 2006
3
4
5
Replies
163
Views
40K
Friday at 5:29 PM
yasotay
A
Design development of the SAAB JAS 39 Gripen
arc3371
Dec 7, 2006
2
Replies
40
Views
25K
Friday at 3:44 PM
Deltafan
Redirect
New Bell tilt-wing project just patented
VictorXL188
Friday at 3:38 PM
Replies
–
Views
–
N/A
VTOL Aircraft Projects to ID
hesham
May 12, 2019
Replies
15
Views
2K
Friday at 2:26 PM
hesham
US Supersonic Transport (SST) Program 1960-1971
Orionblamblam
Apr 9, 2006
30
31
32
Replies
1K
Views
372K
Friday at 2:25 PM
hesham
C
C-2 Greyhound Replacements: N-G Greyhound 21, Fokker F.28, MDD C-9 and others
ChuckAnderson
Aug 29, 2006
2
Replies
59
Views
33K
Friday at 2:01 PM
Mark Nankivil
German helicopter prototypes and projects
hesham
May 18, 2007
Replies
35
Views
11K
Friday at 11:26 AM
Maveric
A
BAC/Sud Aviation Concorde - Development, Variants, Projects
Archibald
Sep 5, 2006
3
4
5
Replies
163
Views
51K
Friday at 12:32 AM
Deltafan
J
Chrysler VZ-6
Jos Heyman
Sep 24, 2008
Replies
8
Views
4K
Thursday at 9:36 PM
Stingray
Various Bristol postwar projects
overscan (PaulMM)
Oct 8, 2006
Replies
29
Views
10K
Thursday at 9:25 PM
hesham
Aerophysics (Curtiss-Wright) VZ-7AP « Aerial Jeep »
Jemiba
Feb 10, 2012
Replies
17
Views
8K
Thursday at 9:09 PM
Stingray
VTOL On Demand Mobility
Grey Havoc
Aug 21, 2016
7
8
9
Replies
350
Views
36K
Thursday at 5:55 PM
DWG
C
Boeing F/A-18E/F Super Hornet upgrades
Creative
Aug 1, 2010
5
6
7
Replies
240
Views
110K
Thursday at 5:35 PM
Grey Havoc
D
Various Bell tilt-rotor projects
dragon72
Jan 8, 2007
2
3
Replies
119
Views
33K
Thursday at 12:25 PM
hesham
Studied models for Boeing-727 airliner
hesham
Mar 27, 2008
Replies
23
Views
11K
Thursday at 10:27 AM
Wyvern
O
TAI HURJET
ocay
Sep 27, 2017
Replies
15
Views
3K
Thursday at 9:41 AM
stimpy75
S
Mosquito with a 32-Pounder
smurf
Sep 6, 2006
Replies
29
Views
19K
Wednesday at 8:54 PM
Tony Williams
T
P
Martin P6M Seamaster
Pioneer
May 22, 2006
2
3
Replies
84
Views
51K
Wednesday at 4:48 PM
youROKer
McDonnell Douglas little known airliners
hesham
Jan 5, 2007
2
3
4
Replies
143
Views
68K
Wednesday at 4:40 PM
hesham
Vought XC-142 Developments
Mark Nankivil
Nov 25, 2009
Replies
21
Views
12K
Wednesday at 4:38 PM
hesham
Japanese Projects
Deino
Jun 26, 2006
2
Replies
40
Views
19K
Wednesday at 2:44 PM
hesham
Rolls Royce old Hypersonic aircraft concept
hesham
Feb 17, 2008
Replies
5
Views
4K
Wednesday at 2:38 PM
hesham
Jean Bertin Projects
hesham
Jul 11, 2007
Replies
29
Views
11K
Wednesday at 1:16 PM
hesham
Bell D188A and Model 2000 VTOL Fighters (Navy F3L / USAF "XF-109")
EEP1A
Dec 4, 2006
2
3
4
Replies
126
Views
71K
Wednesday at 8:17 AM
blackkite
A
Boeing JAST / JSF / X-32 projects
Archibald
Jul 11, 2007
5
6
7
Replies
256
Views
136K
Wednesday at 7:39 AM
taildragger
Bristol 173 Helicopter and the Bristol Janus Gas Turbine
GT6Boy
Monday at 1:20 PM
Replies
4
Views
358
Tuesday at 3:55 PM
GT6Boy
Various UAV and UCAV designs from the USA
flateric
May 19, 2007
7
8
9
Replies
335
Views
117K
Tuesday at 2:40 PM
Mark Nankivil
Potez 88 and 89
hesham
Dec 8, 2007
Replies
32
Views
10K
Tuesday at 2:19 PM
hesham
Fokker Airliner Projects
hesham
Feb 3, 2007
2
Replies
42
Views
22K
Tuesday at 1:59 PM
hesham
C-130 V/STOL modification projects
Jemiba
Jun 10, 2007
2
Replies
77
Views
44K
Tuesday at 1:19 PM
hesham
Joint Surveillance Target Attack Radar System (JSTARS) Recapitalization
Triton
Oct 22, 2012
Replies
34
Views
12K
Tuesday at 11:33 AM
Wyvern
S
André Starck Aircraft And Projects
Stargazer2006
Jan 20, 2010
Replies
29
Views
13K
Tuesday at 11:08 AM
Bazinga
Northrop X-21
blackkite
Mar 29, 2020
Replies
5
Views
565
Tuesday at 3:07 AM
blackkite
Redirect
Unidentified Aircraft to ID
Wyvern
Monday at 11:31 AM
Replies
–
Views
–
N/A
Grumman FSW X-29 (G-712) and its rivals
overscan (PaulMM)
Apr 7, 2006
2
3
Replies
102
Views
58K
Tuesday at 12:46 AM
TsrJoe
French Light Civil Aircraft Projects and Prototypes
hesham
Sep 8, 2006
2
3
Replies
92
Views
17K
Monday at 1:40 PM
hesham
D
Long road to the F-111: TAC, SOR.183, SDR 17, WS-324A, TFX
devi
Aug 2, 2006
7
8
9
Replies
341
Views
164K
Monday at 12:27 PM
hesham
Weser Tilt Rotor Designs
airman
Jul 18, 2008
Replies
7
Views
2K
Monday at 12:25 PM
hesham
Dassault MIrage III V/STOL Derivatives (Balzac, IIIV)
Jemiba
Oct 3, 2006
2
Replies
60
Views
15K
Monday at 12:18 PM
hesham
The Way for Sud Aviation Caravelle
hesham
Oct 1, 2013
Replies
25
Views
9K
Monday at 12:00 PM
hesham
Alexeyev Design Bureau Hydrofoil And WIG Designs
hesham
Jul 4, 2010
2
Replies
40
Views
18K
Mar 29, 2020
zebedee
Unknown Sikorsky tiltwing VTOL concept
Triton
Jun 21, 2016
Replies
14
Views
4K
Mar 29, 2020
yasotay
BAC 2-11 & 3-11
hesham
May 24, 2008
Replies
30
Views
42K
Mar 29, 2020
uk 75
U
Cessna Postwar Projects
Sentinel Chicken
May 9, 2006
2
3
Replies
84
Views
47K
Mar 29, 2020
hesham
Shorts Belfast
TinWing
Jan 4, 2007
2
Replies
56
Views
30K
Mar 29, 2020
elmayerle
E
C-130 Hercules Projects
hesham
Jun 21, 2007
2
3
4
Replies
153
Views
86K
Mar 28, 2020
GTX
Dornier LA-2000 Stealth Aircraft
hesham
Jan 1, 2008
Replies
13
Views
10K
Mar 28, 2020
flateric
BAe P.164
hesham
Feb 29, 2008
Replies
8
Views
6K
Mar 28, 2020
Bucc486
B
VFW VTOL aircraft
overscan (PaulMM)
May 1, 2006
Replies
26
Views
9K
Mar 28, 2020
TomcatViP
T
Breguet 941 STOL and Related Projects
hesham
Apr 18, 2008
2
3
4
Replies
146
Views
60K
Mar 28, 2020
hesham
China Early Transport Aircraft
hesham
Mar 5, 2014
Replies
1
Views
1K
Mar 28, 2020
hesham
Boulton Paul Lift Fan Designs
hesham
Feb 12, 2008
Replies
19
Views
10K
Mar 28, 2020
hesham
SNCASO-ONERA « Deltaviex »
hesham
Aug 31, 2006
Replies
23
Views
13K
Mar 28, 2020
hesham
Eblo Motor-Glider ?
hesham
Mar 27, 2020
Replies
2
Views
157
Mar 27, 2020
walter
W
Lockheed Civil Transport Aircraft Projects
hesham
Nov 26, 2019
Replies
4
Views
647
Mar 27, 2020
Bazinga
North American F-108 Rapier
sferrin
Jun 19, 2006
3
4
5
Replies
178
Views
90K
Mar 27, 2020
blackkite
Lockheed A-12 and SR-71 projects
SOC
May 31, 2006
2
3
Replies
106
Views
49K
Mar 27, 2020
blackkite
Republic XF-103 Interceptor
overscan (PaulMM)
Apr 29, 2008
3
4
5
Replies
167
Views
74K
Mar 27, 2020
blackkite
Boeing Vertol Light Intratheatre Transport (LIT) V/STOL cargo aircraft
hesham
Jan 2, 2008
Replies
19
Views
11K
Mar 27, 2020
hesham
BAC P.45, P.61 & BAC/CAC AA-107 VG Fighter / Strike / Trainer projects
overscan (PaulMM)
Jul 10, 2006
Replies
34
Views
14K
Mar 27, 2020
uncle les
U
L
Bell 360 Invictus (FARA program)
lastdingo
Oct 7, 2019
Replies
16
Views
2K
Mar 26, 2020
RavenOne
Super Hercules
hesham
Mar 21, 2008
Replies
27
Views
15K
Mar 26, 2020
hesham
Various Soviet & Russian VTOL Projects
hesham
Jan 8, 2007
2
Replies
41
Views
15K
Mar 26, 2020
VictorXL188
Boeing 7N7 aircraft
hesham
Feb 29, 2008
Replies
7
Views
6K
Mar 26, 2020
Wyvern
Robertson X-1 STOL Airplane Project of 1958
hesham
Mar 26, 2020
Replies
1
Views
154
Mar 26, 2020
walter
W
Boeing 752 airliner
Triton
Feb 5, 2012
Replies
6
Views
2K
Mar 26, 2020
Wyvern
CX-HLS (Cargo Experimental, Heavy Logistic Support) designs & derivatives
Antonio
Apr 24, 2006
3
4
5
Replies
178
Views
87K
Mar 26, 2020
hesham
C
Boeing B-52H AML-II with 8 Skybolts
circle-5
Mar 23, 2010
Replies
8
Views
3K
Mar 26, 2020
taildragger
Boeing 737 Development Concepts
hesham
Jul 21, 2009
Replies
22
Views
9K
Mar 26, 2020
taildragger
Russian Little Known Helicopters
hesham
Sep 2, 2006
Replies
20
Views
8K
Mar 25, 2020
walter
W
Niess Brazilian Aircraft and Projects
hesham
Jan 31, 2015
Replies
12
Views
3K
Mar 25, 2020
walter
W
Myasishchev M-67 AIRBORNE SURVEILLANCE TESTBED (AST) analog
flateric
May 6, 2006
Replies
12
Views
15K
Mar 25, 2020
Erdosain
Arsenal de l'aéronautique ("Arsenal") projects
Jemiba
Jul 2, 2006
2
Replies
61
Views
28K
Mar 25, 2020
hesham
B
Yugoslav Ivo Lola Ribar VNH-90 Medium Transport Helicopter
bigvlada
Nov 6, 2011
Replies
4
Views
4K
Mar 25, 2020
Hobbes
H
Grumman Design 118 (not the XF12F!)
overscan (PaulMM)
Jul 15, 2006
Replies
20
Views
13K
Mar 25, 2020
riggerrob
R
Postwar yugoslav projects
robertino
Jul 26, 2017
Replies
25
Views
6K
Mar 25, 2020
majevica
M
R
Argentinian Unbuilt Projects
raravia
Apr 7, 2006
3
4
5
Replies
163
Views
86K
Mar 25, 2020
Petrus
R
Advanced Phantom Projects
rousseau
May 17, 2007
2
3
4
Replies
139
Views
76K
Mar 25, 2020
Grey Havoc
French light aircraft contest
Jemiba
Oct 26, 2006
Replies
10
Views
5K
Mar 25, 2020
hesham
Was those I.S.T./PAF aircraft or projects ?
hesham
Apr 28, 2012
Replies
9
Views
4K
Mar 24, 2020
hesham
F
Early concepts for Avro Vulcan
fredgell
Jun 13, 2008
Replies
20
Views
11K
Mar 24, 2020
Wyvern
R
Postwar Hispano Aviación projects
raravia
Mar 26, 2006
2
Replies
43
Views
44K
Mar 24, 2020
hesham
Convertawings « Quadrotor » designs (Models A to F)
luedo34
Jun 16, 2009
Replies
20
Views
9K
Mar 24, 2020
hesham
Avro CF-105 Arrow and its variants
Sentinel Chicken
Sep 5, 2006
2
3
Replies
108
Views
42K
Mar 24, 2020
hesham
Bodo Franke "Volkshubschrauber"
hesham
Dec 21, 2009
Replies
8
Views
5K
Mar 24, 2020
Charlesferdinand
Hawker HS.141 VTOL airliner, HS.140 VTOL business jet
GTX
May 10, 2006
2
Replies
47
Views
36K
Mar 24, 2020
Tony Hays
T
T
Avro Atlantic
The Wooksta!
Jul 14, 2006
2
3
Replies
80
Views
36K
Mar 23, 2020
kitnut617
K
Sud Aviation SA-350 « Rotojet » compound helicopter
MIRAGE 4000
Apr 9, 2007
Replies
20
Views
11K
Mar 23, 2020
Bazinga
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