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This one I designed to look like a dragonfly and even in space style should be a factor.

a name from my fav sci-fi show :)

seconded. style is always a factor

You only need to be streamlined if you plan on entering an atmosphere, but don't forget about inertia; shape and engine placement do affect the steering pivot point and other handling.

The QQS (quantum-quantum-something) engine solves this :D