Declension table of ?vimana

Masculine	Singular	Dual	Plural
Nominative	vimanaḥ	vimanau	vimanāḥ
Vocative	vimana	vimanau	vimanāḥ
Accusative	vimanam	vimanau	vimanān
Instrumental	vimanena	vimanābhyām	vimanaiḥ vimanebhiḥ
Dative	vimanāya	vimanābhyām	vimanebhyaḥ
Ablative	vimanāt	vimanābhyām	vimanebhyaḥ
Genitive	vimanasya	vimanayoḥ	vimanānām
Locative	vimane	vimanayoḥ	vimaneṣu

Compound vimana -

Adverb -vimanam -vimanāt