Reply To: What is the issur in flying on shabbos

Ubiq: As Bill Clinton would say, it depends on what you mean by “material” and whether there is an explicit de minimis waiver in halacha for “very small” (aka non-material) amounts of fuel combustion on shabbos needed to produce the incremental thrust for the additional weight of several yidden who are very unhappy about potentially being mechallel shabbos for this (or possibly one of several other malachos).