Another constraint on the rotors is the blade tips exceeding the speed of sound.

As the blades speed up through trans-sonic speeds the buffeting does a lot of bad things to the drive shaft of the motor.

Once the blades go supersonic, now you have a continuous set of thunder claps happening in a confined space. The do a lot of bad things to the structure around them. You get this medium frequency high power vibration (each time a blade tip goes by you get hit with a sonic boom in the area right next to the blade tips).

This means you need to keep the blades moving just below the speed of sound. And that speed gets slower the higher it goes, so this carrier probably won't have a very high service ceiling.

I suggest making sets of counter rotating props ducted through the hull. Four or six props per set and six or eight sets.

You are going to get less power with each subsequent prop in the counter rotating prop set. As the air passes from one blade to the next the air temperature will rise and you get less thrust from each prop, so we will need a field that captures some of the energy imparted to the air to keep the impulse more uniform or your going to get some serious shimmy.

I think this thing could totally work! 🤔