Black Box Thrusters Using Wrong Units of Mass Mar 2, 2017 1:05:58 GMT leerooooooy likes this Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by randomletters on Mar 2, 2017 1:05:58 GMT Mass flow rate base appears to be (metric) tons rather than kilograms, leading to engines being 0.1% as efficient as they should be.