As far as the log book or order book, my only problem with that is that is what the "blue game" has, and it can be a problem. If very successful airline X orders 500 aircraft and the manufacturer can only deliver 10 a day you have to wait until his order is done before you can receive aircraft.
well of course i think you'd have to still have a limit of what can be delivered per airline. i was just saying that the book i think is a great idea. but you would definitly have to have a cap on it. such as 2 per hour/game day or something. now see the problem i have with that is the game does one day per hour. so if someone did order say 50 aircraft, and it was spread out 2 per real hour, they'd be delivered during the time you're sleeping and the aircraft would then just be sitting there until you can do it. at least now you can order 50 planes at a certain time that you know you will be available tomorrow and can take the time to set all of those routes up. which could be another thing contributing to speedy growth.
we might as well have a game calender where you can select which day you want your plane(s) delivered on.
the other option for the 500 aircraft order and waiting for it could be that everyone who puts an order in, say they can take 75 orders per plane per day/hour, if 74 airlines were to put an order in, and 3 of those airlines put orders in for 2 planes, but the rest were only one, it could make sure all of the airlines would get at least one plane delivered first, then go back through for a second plane based on the order the planes were ordered in. i'll do an example with a small number
Aug 3, 2006 -- Example Airways 1 -- 2 Boeing 733's
Aug 3, 2006 -- Example Airways 2 -- 1 Boeing 733
Aug 3, 2006 -- Example Airways 3 -- 70 Boeing 733's
Aug 3, 2006 -- Example Airways 4 -- 1 Boeing 733
Aug 3, 2006 -- Example Airways 5 -- 2 Boeing 733's
Aug 3, 2006 -- Example Airways 6 -- 1 Boeing 733
so EA1,2,3,4,5, and 6 would all get 1 aircraft first. Then the next round, EA1,3, and 5 would all get their second aircraft. Now EA3 can get the rest of their aircraft delivered. However, they ordered 2 more aircraft than what's allowed. so they get 68 of their 70 delivered, but the other 2 go over to the next day. Now for the next day, you make it so any that carry over are first. meaning you still go through the next day one round after the other one aircraft at a time. so delivery time would be based on demand. so if only one airline ordered, and they ordered 70 aircraft, they'd end up having all those delievered. but there would still be the cap of 75 no matter if there's an additional cap or not.