Declension table of ?vimāna

Masculine	Singular	Dual	Plural
Nominative	vimānaḥ	vimānau	vimānāḥ
Vocative	vimāna	vimānau	vimānāḥ
Accusative	vimānam	vimānau	vimānān
Instrumental	vimānena	vimānābhyām	vimānaiḥ vimānebhiḥ
Dative	vimānāya	vimānābhyām	vimānebhyaḥ
Ablative	vimānāt	vimānābhyām	vimānebhyaḥ
Genitive	vimānasya	vimānayoḥ	vimānānām
Locative	vimāne	vimānayoḥ	vimāneṣu

Compound vimāna -

Adverb -vimānam -vimānāt