全翼 ぜんよく飛行 ひこう ではありませんでした
zen yoku hikōkidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 全翼飛行機

1. Was not a flying wing aircraft.; Was not a full-wing aircraft.

Past/Perfective
Negative
Polite
Formal Register