15:00
added balloon so you can go flying (will work on propellers n stuff later)
increased weight of big titanium block of doom
also bloon density is 6/pc
titanium is 10/pc
wood is 1/pc
iron is 2/pc
pigs and engine add additional 1 density
wheel also have additional 1
also engines provide 2 iron wheel power (the wood ones cant be powered) (yes it stacks)
22:50
changed balloon density to 4
added hinges