> All I am saying is that by the time you are flying the thing, you should have high confidence in it. It seems like there is a balance between the level of co

> All I am saying is that by the time you are flying the thing, you should have high confidence in it. It seems like there is a balance between the level of confidence you achieve prior to a flight test, the costs of a failed test, and the speed at which you can implement and iterate designs. > A failure at that point should lead to a serious reevaluation of that confidence, If, as in this case, the failure is due to non-considered risk, you certainly want to make changes to the assumptions you make during the design process in the future (in additional to the changes you make in your current design.) I don't think you need to generally question your confidence in your components that have not only passed all their operational tests, but have been used successfully to complete operational missions.