> SpaceshipTwo is considered the 'simplest' and 'safest' of all the upcoming manned commercial vehicle. XCOR's culture of safety is pretty good, though it's th

> SpaceshipTwo is considered the 'simplest' and 'safest' of all the upcoming manned commercial vehicle. XCOR's culture of safety is pretty good, though it's the school of thought quite close to Virgin Galactic . At least rocket engines in XCOR are designed with the highest standards of safety.