actually the most versatile air vehicle was airship and sea going vehicle was steam ship. airship also can be use to get space craft design and other quest that require flying vehicle if you have it after trashed a mighty plane. it took 5-6 diesel to fill the bar and it took long time to dry up the blue bar
ign:[ltp]dog
server:leo3
[ltp]dog fire main
[ltp]dog2 water alt
unknown earth alt
unknown pure wind mage w/ 125 spd planned