I noticed there is a direct correlation between this number and the ease with which I can keep the ship at a certain altitude and elevation. Really impressed with the ship I'm using it doesn't crash or fly off into space too easily lol. 48 hours and I have no intention of trying to challenge my record.
Dynamic pressure are expressed in kg. In practice, it increases the denser is the atmosphere and the faster you go...
If the value is greater than the weight of the ship, this points upwards, if it is smaller it begins to fall ...
with my ships, I usually cheat by setting a dummy weight of only 5 tons, so that they can fly decently even in thin atmospheres ...