Hughes H-4 Hercules (the Spruce Goose)
Specifications (H-4)Performance specifications are projected.
General characteristics
Crew: 3
Length: 218 ft 8 in (66.65 m)
Wingspan: 320 ft 11 in (97.54 m)
Height: 79 ft 4 in (24.18 m)
Fuselage height: 30 ft (9.1 m)
Loaded weight: 400,000 lb (180,000 kg)
Powerplant: 8 × Pratt & Whitney R-4360 Wasp Major radial engines, 3,000 hp (2,640 kW) each
Propellers: four-bladed Hamilton Standard, prop, 1 per engine
Propeller diameter: 17 ft 2 in (5.23 m)
Performance
Cruise speed: 250 mph (407.98 km/h)
Range: 3,000 mi (4,800 km)
Service ceiling: 20,900 ft (6,370 m)


Blohm und Voss Bv-238
General characteristics
Crew: ca 12
Length: 43.35 m (142 ft 3 in)
Wingspan: 60.17 m (197 ft 5 in)
Height: 12.8 m (42 ft 0 in)
Wing area: 360.16 m2 (3,876.7 sq ft)
Empty weight: 54,780 kg (120,769 lb)
Gross weight: 90,000 kg (198,416 lb) for reconnaissance mission
95,000 kg (209,439 lb) for bomber mission
Max takeoff weight: 100,000 kg (220,462 lb)
Powerplant: 6 × Daimler-Benz DB 603G inverted V-12 liquid-cooled piston engines, 1,417 kW (1,900 hp) each for take-off
1,163 kW (1,560 hp) at 7,375 m (24,196 ft)
Propellers: 3-bladed constant-speed propellers
Performance
Maximum speed: 350 km/h (217 mph; 189 kn) at 60,000 kg (132,277 lb) weight at sea level
425 km/h (264 mph) at 60,000 kg (132,277 lb) at 6,000 m (19,685 ft)
Landing speed: 143 km/h (77 kn, 89 mph)[5]
Range: 6,620 km (4,113 mi; 3,575 nmi) at 365 km/h (227 mph) at 92,000 kg (202,825 lb) at 2,000 m (6,562 ft)
Service ceiling: 7,300 m (23,950 ft)
Wing loading: 261 kg/m² (53 lb/sq ft)
Armament
Guns: 8 x 13 mm (0.512 in) MG 131 machine guns with 1,800 rpg; 4 in each nose and tail turret
8 x 13 mm (0.512 in) MG 131 machine guns with 900 rpg; 4 in each wing mounted turret
4 x 13 mm (0.512 in) MG 131 machine guns with 500 rpg; 2 in each manually aimed beam position
2 x 20 mm (0.787 in) MG 151/20 machine guns with 1,400 rpg in forward dorsal turret
Bombs: 20 x 250 kg (551 lb) SC 250 bombs in wing bomb bays
and 4 x 250 kg (551 lb) SC 1000 bombs on external racks
or' 2 x 1,200 kg (2,646 lb) LD 1200 torpedoes on external racks
or 4 x Henschel Hs 293 missiles on external racks
or 2 x 1,000 kg (2,205 lb) BV 143 glide bombs on external racks


Norhtrop XB-35 flying wing
Specifications (YB-35)General characteristics
Crew: 9: pilot, copilot, bombardier, navigator, engineer, radio operator, three gunners
Length: 53 ft 1 in (16.2 m)
Wingspan: 172 ft (52.2 m)
Height: 20 ft 3 in (6.2 m)
Wing area: 4,000 ft² (371.6 m²))
Aspect ratio: 7.4
Fuselage diameter: 9 ft 6 in (2.9 m
Empty weight: 89,300 lb (40,590 kg)
Loaded weight: 180,000 lb (81,647 kg)
Max. takeoff weight: 209,000 lb (94,802 kg)
Powerplant: 2 × Pratt & Whitney R-4360-17 and 2× R-4360-21 radial engines, 3,000 hp (2,237 kW) each
Performance
Maximum speed: 393 mph (632 km/h)
Range: 8,150 mi (13,100 km)
Service ceiling: 39,700 ft (12,100 m)
Rate of climb: 625 ft/min (3.2 m/s)
Wing loading: 45 lb/ft² (220 kg/m²)
Power/mass: 0.07 hp/lb (0.11 kW/kg)
Armament
Guns: 20 × .50 in (12.7 mm) M3 Browning machine guns
Bombs: 51,070 lb (23,210 kg)


also throwing in the YB-49 in case that one is more preferred:
Specifications (YB-49)
General characteristics
Crew: 7
Length: 53 ft 1 in (16.0 m)
Wingspan: 172 ft 0 in (52.4 m)
Height: 20 ft 3 in (6.2 m)
Wing area: 4,000 ft² (371.6 m²)
Airfoil: NACA 65-019 root, NACA 65-018 tip
Empty weight: 88,442 lb (40,116 kg)
Loaded weight: 133,559 lb (60,581 kg)
Max. takeoff weight: 193,938 lb (87,969 kg)
Powerplant: 8 (6 J35-A-19 on the YRB-49A) × Allison/General Electric J35-A-5 turbojets, 4,000 (5,000 for J35-A-19) lbf (17 kN) each
Performance
Maximum speed: 495 mph (793 km/h)
Range: 9,978 mi (16,057 km) maximum[14]
Combat radius: 1,615 mi (2,599 km)
Service ceiling: 45,700 ft (13,900 m)
Rate of climb: 3,758 ft/min (19.1 m/s)
Wing loading: 33 lb/ft² (163 kg/m²)
Thrust/weight: 0.23
Armament
Guns: 4 × .50 in (12.7 mm) machine guns (to be mounted in rotating "stinger" tail cone on all production aircraft)
Bombs: 32,000 lb (14,500 kg)


Coastal batteries....a battleship or cruiser turret/bunker combo would do....mostly want some shore artillery with extremely wide firing arcs
Lindeman battery:



French 340mm twin turret


Type 5 Chi Ri
Specifications
Weight 37 tons
Length 8.467 m (27 ft 9.3 in)
Width 3.05 m (10 ft 0 in)
Height 3.10 m (10 ft 2 in)
Crew 5
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Armor 12–75 mm
Main
armament Type 5 75 mm Tank Gun; an 88 mm gun (based on the Type 99 88 mm AA Gun) was planned for the turret of a later model
Secondary
armament Type 1 37mm gun
2 X 7.7mm Type 97 light machine guns
Engine Water-cooled Kawasaki Type 98 aircraft engine (Petrol)
550 HP
Suspension Bell crank
Operational
range 250 kilometers
Speed 45 km/h (28 mph)

T-28/T-95 Super Heavy tank
I've had the privelage to actually see the only remaining example of this tank

Weight 95 short tons (86.2 metric tons)
Length 36 ft 6 in (11.1 m)
Width 14 ft 11 in (4.39 m)
Height 9 ft 4 in (2.84 m)
Crew 4[1][2]
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Armor 12 in (300 mm)
Main
armament 105 mm T5E1 gun, with 62 rounds
Secondary
armament .50-cal machine gun, with 660 rounds
Engine Ford GAF V-8 gasoline
500 hp (372 kW)[1]
Power/weight 5.8 hp/tonne
Suspension double track
Operational
range 100 mi (160 km)
Speed 8 mph (13 km/h)[2]


T-29 Super Heavy Tank
Production history
Designed 1944
Variants T29E1, T29E2, and T29E3
Specifications
Weight 141,500 lbs (70.5 short tons, 64.2 metric tons) combat loaded
Length 37 ft 11.5 in (11.57 m) gun forward, 32 ft 9 in (10 m) gun aft
Width 12 ft 5.5 in (3.80 m) over sand shields
Height 10 ft 6 in (3.20 m) over cupola
Crew 6 (driver, commander, gunner, loader {left}, loader {right})[1]
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Armor hull front upper 4 in (102 mm) at 54 degrees
hull front lower 2.75 in (70 mm) at 58 degrees
gun shield 8 to 11 inches (203 to 279 mm)
turret front 7 in (178 mm) at 0 degrees
turret sides 5 in (127 mm) at 0 degrees[1]
Main
armament 105 mm gun T5E2 (63 rounds)
Secondary
armament 2 x .50 (12.7mm) Browning M2HB machineguns, coaxial
1x .50 M2HB flexible AA (2,420 rounds)
1x .30 Browning M1919A4, bow (2,500 rounds)
Engine 1649 cubic inch (27 liter) Ford GAC four cycle 60 degree V12[1] gasoline
650 net hp at 2800 rpm, 770 gross hp at 2800 rpm
Power/weight 10 hp/tonne
Transmission General Motors CD-850-1 crossdrive, three speeds (two forward, one reverse); rear drive sprocket
Suspension torsion-bar
Fuel capacity 300 US gallons (1140 liters), 80 octane
Operational
range 100 miles (160 km)
Speed 22 mph (35 km/h)

I would like to add more pictures, but I am unfortunately out of time

anyways, hope to see some new stuff soon!