Okay guys, hear me out.
Do you...like speed?
Do you want the oceans of Earth to become the plot of the next Fast and Furious movie?
Then I have the perfect concept for you: The Gdrive submarine. For the following calculations we will assume 0.5g Gdrive and the weight of a type 212 submarine, so 1830 tons. Because of some discussions on the discord gdrive sub came on, mostly because no moving parts and stealth and all that, but I, I had a different thought: how fast can a Gdrive sub go. In opposite to space, the sub is held back by the water around it, so we need to figure out a submarine drag coefficient, turns out sadly, real subs dont give out these numbers readily, so we had to make some assumptions.
Assuming the drag coefficient of our Gdrive sub is equivalent to a ball (0.47) a 0.5g Gdrive sub could reach a maximum speed of 165 km/h...underwater mind you.
Some articles mentioned coefficients of 0.3, in this case we could reach max speeds of 195 km/h.
They also mention future sub designs could reach as low as 0.1, at which point we are at max speeds of 325 km/h.
The theoretically upper limit using a perfect streamlined body (0.04) we can get to 525 km/h if we don't reduce the cross section.
This speed of course scales with Gdrive upgrades. But now, what does this mean? A submarine at this speed would be able to outrun ANY conventional submarine, warship and conventional torpedo. Nod would have to upgrade to supercavitating torps with rocket motors and this would only give them A CHANCE to overspeed out hypothetical Gdrive sub. Who need stealth when you can outspeed any enemy. Nod sub commander be talking big until the eardrums of their sonar operators burst because GDSSN Diesel zoomed near them at 300 km/h.
😎 🏎️