ORIGINAL: Bogo Mil
I have never seen a ship not upgrading. The ship must be disbanded in port, and there must be a repair shipyard. I think any size will do, I know size 10 is large enough to upgrade CA. The sys damage must be very low. How low is low enough depends on the class - the larger the ship, the lower the sys damage must be. If I turned on upgrade to a ship without sys damage, it always upgraded immediately - even if the port is cramped with dozens of repairing vessels. I never saw anything else.ORIGINAL: el cid again
You can set it to arrive at any date. And "immediate upgrade" is a variable thing. It is much more likely to upgrade fast at a major shipyard in a major port with lots of HI and supplies. It is much less likely to upgrade if there are lots of other ships needing upgrades, few supplies, little or no HI, and little or no repair shipyards. I am having trouble getting the RTN big gunboats to upgrade ever
You can give new ships 99 sys damage. If they don't have floatation or fires, they will not sink. If they have floatation, it may get out of control with 99 sys - even a ship which starts at 20 float damage might sink. Just don't add any float damage.
This is not correct - and I wish it were. RHS users can testify - from older versions - we had problems with losing craft - landing craft in particular - when damage is set too high. I thought this was the case - and it seems to be for a while - then - wa la - the darn thing sinks - many weeks later.
It is possible setting damage to 0 may lead to an instant upgrade - I doubt that for technical reasons - but the mechanism we are discussing specifically wants us to have damage. In general, GG loves die rolls and conditional tests - so for example the number of repair points at a port is likely related to the durability of a ship - and that probably affects the chance of an upgrade - with it being zero when the repair points are less than durability. Also, it is becoming clear the ships upgrade in class slot order - until something is reached (probably total ship repair points- maybe other things) - after which NO ship upgrades at all - so very high ship class slot numbers tend not to upgrade.