Could a beached ironclad reinforce Heligoland?

Could Britain beach a central-battery ironclad on Heligoland and cover it with Maxim guns and mortars?

It is one possible improvised defence, but small craft, submarines, and anti-submarine forces matter more to the wider fight around the island.

A viewer proposes turning an obsolete central-battery ironclad into a static island weapon by beaching it and adding Maxim guns and mortars. The reply accepts that improvised arrangements are among the possibilities without making that exact scheme necessary. The strategic emphasis instead falls on a force mix able to maximise local firepower during a close, confused coastal fight. That answer leads into submarines, destroyers, and anti-submarine warfare as the assets most likely to shape movement around the fortress.