Paper/Concept/Unfinished prototype tanks/aircraft/etc. sharing thread

[SnakeMantis007-psn]

Mock-up of German tank projects :

• Selbstfahrlafette mit Absetzbarer 15 cm sFH 18

• 12.8 cm K 43 Selbstfahrlafette Krupp II/Grille 12

• 12.8 cm Selbstfahrlafette Rheinmetall-Borsig

• Panzerkleinzerstörer Rutscher

• 10,5 cm le.F.H. 43 auf Selbstfahrlafette Skoda T-25

Spoiler

• 7.5 cm StuK 42 L/70 auf StuG III

Spoiler

Sources :
Waffenträger Panthers - Heuschrecke, Grille, Skorpion - Tank Encyclopedia - Panzerkleinzerstörer | FirearmCentral Wiki | Fandom - projekt : Germany (DEU) - 7.5 cm StuK 42 L/70 auf StuG III - Tank Encyclopedia

[Surbaissemaxxing]

Already posted this in a different thread, but also fits here. Tank concept between the USSR, USA, Germany and France, but went no-where. (Yes it’s declassified)

IMAGE SPAM

[TM_06]

Here’s a fun one: Hawker P.1030.

Functionally, a Hawker Tempest redesigned to take the Rolls-Royce Eagle 46H eagle making ~4,000 hp+.
It was expected to be able to reach a top speed of 508 mph/819 kmh at 6,069 m with an eye-watering climb rate of 1951 ft/min or 32.51 m/s.
There’s a thread on the Secret Projects forum that has a bunch of interesting info on it, and it’s one of my personal favourite prop designs.

[Toxin]

Concept of a casemate Leopard 2 tank destroyer.

[TerikG2014]

I give you what happens when you leave the lads at BAE Warton locked in a room with too much tea.
P.103

[LelutooDS]

That Swedish Monitor with the triple 35 cm cannon turret.

[LeonDasPro]

B-57 & 3/4

[coritiba1909]

P43 BIS

Spoiler

Spoiler

Spoiler

(Photoshop)

Spoiler

Spoiler

44M TAS

Spoiler

Caproni Campini Ca.183bis

Spoiler

Spoiler

Reggiane Re.2006

Spoiler

[SinisterIsRandom]

Northrop YA-9(The Original aircraft that the Su-25’s ripped off)

Underlicensed “Japanese Ki-86A” 1945
Bucker Bu 131 (Jungmann)

The Plane To Save Japan - Biggest Japanese KX-3

Kawanishi KX-03/KX-3

Kayaba Katsuodori

Kyushu K11W

D-EBFW, a 1937-built Bf 108B-1 painted to represent a pre-war company demonstrator D-IBFW

Me-108

Mitsubishi Ki-73

Mitsubishi Ki-1 “Type-93 Heavy Bomber”

Q2M Taiyo

Northrop Gamma

Tachikawa KI-94-I

Yokosuka Tenga

[TM_06]

P.43Bis, 44M Tas, Re.2006

Ah, a man after my own heart.

[MA50CHI5T_TEAB00]

Always loved the craziness of this thing.

The Overthrow MBT – Tank Design & Development

14" of composite on all sides for an equivalent of 26" steel. Vertically launched swingfires in the middle, and 2 mgs you can’t access to reload.

Oh, and a mobility of no.

[DevilO6]

[TerikG2014]

Another insane product of the minds at Warton the P.1226

[armornabot555]

There’s also the various IKV-90 designs, I forget where but I saw a picture of all the drawings.

[Zyranovos]

The Natter? I was thinking the same thing.

[Zyranovos]

[Zyranovos]

@LelutooDS

The landsverk Pansarluftvärnsvagn based on a leghtened Pbv 302 chassis

This one

[LelutooDS]

Yeah the Plvv is cool, a real shame it never got built.

[Zyranovos]

👁️👄👁️

@Zyranovos

SAAB J27

(Modeling of the proposed plane)

The 1945 super prop that never was, based on a blended Spitfire and P-51 airframe, with a coaxial front rotor system. While it wasn’t ever built, this was, a Swedish 31 SuperMarine Spitfire.

Long lost brothers

[LelutooDS]

Landsverk Strv m/48

An Strv m/40 with a 25mm autocannon using apds ammo.