After 4 years being a baron, the empire that you are sharing a border with decides to declare war to your suzerain. It will take at least a year for them to muster their whole army and knock on the doors. You, the Baron has one year to prepare for war.
The rest of the country refuses to help you due to the elitism of country's nobility. The royal family can't help you without showing favoritism and tells you that this is a trial on how well you handle the situation. Furthermore, the nobility have decided to protect the second line of defense instead of your barony. The nobility sees you as a social climber who knows nothing and they prefer to leave you to the enemy. They see this as an occasion where you can prove yourself (how useful you can be). They will barely supply you with anything but trading activities remain open.
Your task is to delay the enemy at all cost since the country has little knowledge of war logistic. but no one said you cant stop them.
The adversary, the empire, is a regional dominant power that can muster more than a million professional soldiers of its own, 4 million levies and another 2 million mixed of professional and levy soldiers from its vast vassal states. Economy wise, they can maintain a standing army indefinitely. They also deploy land battleships with no gunpowder but with numerous ballistas and formidable magicians that serves as the battleship's main weapon. The empire is not festered by corruption and uses divide and conquer tactics to subjugate adversaries.
If mana containment fails can be very disastrous or in this case very beneficial for your cause, with the power to vaporize anything within 600 meters radius. This is the medieval-magical version of nuclear bomb, one or two of these can bring serious political discussions on the table when this thing hits the capital of the enemy.
You know how to magically guide these bombs (magic remote control car) to their target. But that is too slow, you need something that will deliver this nukes to their targets in a timely fashion. Now comes these 2 solutions.
- Gunpowder rocket
- Gunpowder cannon
These 2 can be carried on an airship of your made, and dropping the nuke to the target is a big NO due to the fact that your airship can't go up high like Enola Gay can.
What of the two options is feasible enough to be carried on a flying ship with enough range (2-7 kilometers preferably) with the minimum size of 155mm.
The weight can be reduced magically up to 70% anything more will cause the mana containment field to fluctuate and possibly explode prematurely.
You can only use Gunpowder or oil as propellant, you can mix the two but i need an explanation how.
Assume the ship as a flying Iron Clad the size of a destroyer.
The core of the bomb is a 3 carat diamond the size of an adult nail and filled to the breaking point with pure mana. It is inert until broken by a special tool meant for breaking diamonds which will cause the mana containment to fail and will cause the nuke like explosion. It is surrounded with Mana containment device the size of 155mm hence its requirement.
The guidance is akin to laser guidance.
The projectile can be launched straight to the target or lob over the target but never homing. I know both has pros and cons
- Please also tell me how to employ such weapon during the medieval age or at least its ramifications. Assume that no on knows how it is made and only you know how to make one.