From: Edgewater, MD
To echo some of Alfred's points-
In stock AE -
Let's say the Allied player chooses to forego supplying fuel to Australia and thereby essentially shuts down HI production due to a lack of fuel. They will then also be foregoing 2240 supply points being produced per day by that industry - in theater.
So the Allied player establishes his base of operations in Auckland, it will take 27 days for a TF of 8 Pacific L Cargo ships to travel from San Fran to Auckland. The TF should be able to unload its capacity of 31,200 points in one day. So in c.55 days 8 ships deliver 31,200 points to the theater.
However in the 55 days that it took the TF to transit to Auckland and back to San Fran , Australia could have produced 123,200 supply points. So the Allied player would potentially tie up 32 Pacific L Cargo ships to make up the difference. The Pacific L consumes 26 fuel per day...26x32x54 = 44928 fuel consumed. Keep in mind this fuel consumption may or may not come from in theater. In addition, the HI in North Island, NZ will consume 200 points per day or 55x200 = 11,000 fuel in 55 days.
On the other hand Australian Industry consumes 2240 points of fuel per day. Its 177 hexes from San Fran to Sydney. The transit time,one way, for a Shell Type A tanker is 22.125 days. Round trip time is 47 days. In those 47 days Australia will produce 105,280 supply points and consume 105,280 Fuel. It will take 9 Shell Type A tankers to supply that quantity of fuel and the tankers will consume ....9x57x47= 24,111 fuel.
So in the end, after my very rough analysis, the Allied player potentially has to decide whether to tie up 9 tankers or 32 cargo ships...depends on their priorities...and their are certainly other variables to consider.
In my mod, all supply production will be from HI so the Allied player will likely be compelled to feed Australia.
Here's a link to: Treespider's Grand Campaign of DBB
"It is not the critic who counts, .... The credit belongs to the man who is actually in the arena..." T. Roosevelt, Paris, 1910