Cooking time for more than one cake?

[VillaVillekulla]

How does cooking more than one cake at a time affect cooking time? I'm guessing it takes longer but no idea how much longer. I need to bake two loaf cakes (individually they take about an hour each) for Friday. TIA

It shouldn't make any difference in a fan oven. The only potential thing to watch out for is if they are directly above/below each other with not much gap, the lower one will usually not rise as much. So try and position them offset if you can

Thanks. I had assumed it would take longer. Lucky I asked or I'd have two very burnt cakes tonight! I'll put them next to each other and see what happens...