Finarfin said:
Is there a similar stacking penalty for naval units?
Yes, unfortunatly. And it is a very ugly penalty too. I do not know of a fix, maybe someone else does.
Sorry to read that the carrier movement didn't land your A/C. It's been some considerable time since I used aircraft carriers in HOI although I'll always try to build seaplane carriers in TGW.
Don't take what follows to the bank, I think it describes the manage convoy mode but offer no warrantees of any sort!
As for the convoy numbers, have no documentation to back this up but believe the following to be pretty accurate assessment:
Convoy ships
X/Y
X = Number of ships current tasked to that convoy
Y = Number of ships required for convoy to operate. Convoys will not carry anything and are usless for supply unless X >= Y
but are still in sea zones and can still take losses
Convoys with insufficiant ships are shown in
red figures and working convoys are in white.
Material/Supply
A/B
A = Amount of material/supply being carried by the convoy
each day
B = Maximum amount of material/supply that can be transported from the province each day. If you have enough transport to carry B each day then adding more transports have no effect. I do not know (or care) how HOI computes B and what, if any de-limiters can be applied by the active player or game conditions.
A/B values are useful for colonial powers that are shipping resources home via convoy routines. One of the irritating things in HOI is having an oil carrying convoy taking oil from an oil-producing province will often reduce oil stocks to nil with all of the nasty side-effects that has. Creating a seperate oil only convoy to carry oil in excess of that needed for operations can be done provided value A < the amount of oil produced per day. This builds up your home stocks while leaving enough in theatre to operate as needed.
Sometimes convoy numbers are in
green but I haven't determined the significance of this; don't care and don't think that it's cost me any campaigns as of yet.
Material transported by convoys only move at 0000 hrs daily. There are some cheats/exploits that flow from this but I'll let you discover those on your own. Creating a convoy carrying resources from a province connected to your capital by land owned by you, that is to say a valid supply path, seem to add addition resources to your pool. I've noticed this while perusing Economic Reference Table 3.
Like escorts, the types of merchant ships that are sent on convoy duty are irrelevant. One cargo ship unit = 20 convoy ships IIRC.
Hope this helps and was not too long-winded.
Cheers