Bishop

So what do the terms mean to these Aeromorphs (as a unisex species)?

Lesbian- while planes in the English-speaking world are typically gendered as feminine by default, not all of them identify with womanhood or femininity (considering it a human concept). Some of them do, though, and prefer partners who feel that same strong connection to female identity. Otherwise, most planes fall under the lesbian label anyways, but dont find it necessary to label it because it’s so common.

Gay- similarly, planes who have a strong connection/attraction to manhood or masculinity (in other aircraft, or in humans). Many of them, including this Gulfstream, would also be trans.

Bisexual- aircraft don’t have distinct sexes but it can be used to encompass attraction that’s ambivalent to gender/presentation, or even whether the partner is an aircraft or a human.

Transgender- again, a plane’s assigned gender depends on language. The Tupolev is a Russian plane, and afaik the Russian language genders airplanes as neutral/masculine. So this plane being a woman means she would be trans, while the opposite would be true with male planes in the USA.