My turn proposal
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Tank:
+6 to boost to 63k/ph
+10 for fast-turning turret
+12 for offroad
+15 for a diesel engine
Build 150 TP-1s and 25 LUP-40s
Build a protoype of gunship designed earlier?
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Design #1
Name: LBA-280
Number Of Engineers: 10
What It Is: A land based immovable large howitzer firing 280 mm rounds for defense of large cities and forts against advancing forces, and naval (if situated near coast) threats.
Weight: 87,360 lb (39,625.8 kg)
Length: 12.735 m (41 ft 9 in)
Barrel length: 12.006 (39 ft 5 in) L/50
Crew: 15? (guessing here.)
Shell: 650 lb (294.8 kg)
Calibre: 11 inches (280 mm)
Carriage: Static only
Elevation: -10 to +80
Traverse: 360
Rate of fire: 2 rpm
Muzzle velocity: 2860 ft/s (865 m/s)
Range: No bloody idea how to estimate this.
(may change caliber to 380mm or 420mm should that receive more support)
PigeonWhat is it: Light scout helicopter, with pilot and enough space to carry 150 kg cargo, or one gunner with TP-1 machinegun, should use mix of wood and light alloys for the hull.
8 novice engineers and metallurgist
TX-1 What is it: Basic level torpedo
1 novice engineer (we'll use more engineers to create more advanced, later.)
My last attempt to put the helicopter through, that's ahistorical but viable. Helicopters are great for navy, transportation, tank hunting and not defenseless against biplanes. First one is far from impressive, but should it be successful, we may design something heavier later
The best way to keep a beachhead from happening? Repel the invasion fleet. Which is why my torpedoes+FACs are a good idea, since the 40mm deck gun is good against shallow draft boats, while the torps will be effective at any escorts the landers have
We have no time for that and coastal batteries are scarier for invaders then torpedo boats.
Forget about designing anything for that war, it is started already, in no way we can stop the landings, should meet them on land with our machine-guns and guns, should be enough, IMO
And one more thing - we are designers, military will decide how to use weapons we give to them