The Royal Navy's early triple-turret programme

How early did the Royal Navy investigate triple-gun turrets, and why were they not adopted?

Evidence points to an ongoing programme from roughly 1905-06, but decisions repeatedly favoured twin mountings with larger guns instead.

A completed triple 14-inch design has firmer evidence than the proposed triple 16-inch mounting. Wider archival research suggests that the Royal Navy and major industrial partners maintained triple-turret studies from about 1905 or 1906. Technical interest was sustained, yet no mature result entered service. One recurring decision framed the choice as three existing guns or two larger guns, creating an unnecessarily restrictive political and design tradeoff.