The alternate path depends on demonstrated operational value rather than mere technical promise. A reliable X-1 would need to disable a carrier, destroy a convoy, or achieve another unmistakable success during exercises. Such a result could turn a technical experiment into a capability the Admiralty would defend during treaty negotiations. Combining cruiser warfare with minelaying would strengthen the case by letting one large submarine influence one area with mines while attacking elsewhere with guns and torpedoes.
Notable Point · 23:52-26:09
What would make Britain back the X-1 concept?
A reliable X-1 would need a conspicuous exercise success, such as disabling a carrier or destroying a convoy, to overcome British hostility to submarines.