IMO, the biggest feature is the unit converter in Microsoft calculator, it will helpfully convert and give you some real-world idea of how much energy, measured in things like cakes.
Took a trip to the north pole, discovered the no atmosphere bug, crashed and died. I also worked on a new ground attack plane. I like the missiles too much to give it away.
Considering I will most likely want to stick to old build styles to see what works mine will probably just be something simple like 'Fairing Test' or 'Probably Will Crash'.