Jaeger, we have to remember that the throttle goes both forward and reverse. For example, turning right while going full speed might simply reduce or kill the right engine, while turning right at full stop might put the right engine in reverse and the left ening at full forward. There might be another mechanisim between the sum of the throttle and turning input and the engine itself, something like a differential in a car, kindof.
Thinking more on this, I'd propose that the turning engines are influenced by both the throttle and the wheel. Both can alther the throttle of the turing engines, and only up to a certain extent, say 75% each, whereas the throttle has full control of the thrust engines.
For example, full speed, turning right; 100% left engine, 100% thrust engine, 25% right engine. (leads to a 75% engine throttle difference between turning engines)
3/4 speed forward, turning right; 100% left engine, 75% thrust engine, 0% right engine (100% engine throttle difference between engines)
100 50 -25 (125)
100 25 -50 (150)
Turn right from a standstill; 75% left engine, 0% thrust engine, -75% right engine (150% thrust difference)
Ok so that might not be perfect, but it helps to explain ships turning faster at a standstill.
And for the things that hold the baloons onto the ship, in gas baloons its called the netting line
http://en.wikipedia.org/wiki/Gas_balloon but I could see it being called the tarp, kite, boon, or any combination of those. I prefer the term boon, myself.
Boon boon boon.