Why is it die Helme?

Helme ends in -e, and most nouns ending in -e are feminine: in a German dictionary, 79% of them take die.

All nouns ending in -e
Sense 1
die

Meaning

[1] A river in Germany, tributary of the Unstrut

[1] ein Fluss in Deutschland, Nebenfluss der Unstrut

Examples

[1] The helmets are not a navigation

[1] Die Helme ist nicht schiffbar.

Declension

1 Singular Plural
Nominativ die Helme —
Genitiv der Helme —
Dativ der Helme —
Akkusativ die Helme —

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary