http://what-if.xkcd.com/30/
Lovely read anwar bhai, Uranus was the best, "Why would you want to fly on a featureless planet?" ...lol
And another interesting thing to note, smooth transition on Jupiter from gas to solid, wonder how Cessna would feel !!
The cessna would do the wall maneuver :banghead: without a need to do anything on the sticks :giggle: if the transition was a little abrupt
http://www.wired.com/wiredscience/2013/02/xkcds-interplanetary-cessna-and-trajectories/
Wow!! That guy has taken it too far !