This feat is really only for campaigns that tie into spelljamming (Spelljammer setting), but it lets you move a fantasy space ship for a little while, under your power.
Originally written for 3e, now updated for 5e.
Updated 2022-08-14: Adjusted some wording to remove the words "spelljammer" and "spelljamming" (for legal reasons) from the feat's text. Mostly because WotC will soon be releasing their 5e update to the setting.