Very, with mature non-stupid design.
On 2016-09-30 17:13, Daniel Rocha wrote:
But how likely it is for engines to turn off rather than explode the
whole vehicle? Even 1/1000 chance may threaten the whole enterprise.
2016-09-30 13:39 GMT-03:00 Henry Spencer <hspencer@xxxxxxxxxxxxx>:
Many times. It's the usual outcome of a liquid-rocket engine
failure.