The Massively Polluting rockets of the 60s are Back in style~!
Yeah, I notice a considerable frame-rate load when the 5-mile long trail of exhaust is all in view.
A faster dissolve rate might be more user friendly. I guess it ultimately depends on what you'd
want to assume as fuel.
SpaceShipOne should have a fairly sooty trail when it finally burns it's cheap rubber cement mix
into the stratosphere... Hydrogen's ultra clean, but white clouds dissipate pretty slowly.
I guess I'd wanna see a unique mixture... maybe Boost can add a dirty additive to an otherwise
ultra-clean burning, rapidly dissipating exhaust. Since the Delta Glider's already pretty futuristic,
you could assume diesel exhausts will be phased out for something a lot more earth-friendly.
(At least I can Hope so).