Looking back to the history of names of ship types, the history is confused by nations to not use the same terms as each other. So if Russia's Duma funded a class of 'patrol cruisers' then the English publication Janes' might list them as 'coastal destroyers.'
I see the main thrust of Space navies moving back to the battle-line versus smaller craft split of the Napoleonic Era. There is no submarine equivalent in space, because there is no surface to hide under. So polities build capital ships, and then they build the smaller vessels with the range and armament needed for today's missions.
As a side note, most TRAVELLER players think of purpose-built warships. Consider that the 1800's India merchants used the same hull as the 74-gun ship-of-the-line, and they were confused. Sometimes deliberately. There's a long line of thought behind subsidizing a peace-time merchant that can perform some wartime patrol duties. It just never worked, however, to use the auxiliaries against equal tonnage warships.
But there is some adventure possibility in a small scale frontier setting. The ex-military PCs are impressed to run a 1,000 ton auxiliary and prevent 100-ton scout ships from resupplying the rebels...
Last note:
Ther are lots of adjectives in from of classes that meant life or death in certain circumstance -- those circumstances where they weren't entirely irrelevent. And these adjectives appear with the smaller classes, not the battle line.
A 'protected' design put concentrated armor around gum mounts and the bridge. An 'armored' design put the armor throughout the whole structure. After some small wars tested the concept, the protected designs largely disappeared. Auxiliaries (mostly liners) were funded with 'protected' armor, and a few patrol designs carried the scheme into World War I.
I see the main thrust of Space navies moving back to the battle-line versus smaller craft split of the Napoleonic Era. There is no submarine equivalent in space, because there is no surface to hide under. So polities build capital ships, and then they build the smaller vessels with the range and armament needed for today's missions.
As a side note, most TRAVELLER players think of purpose-built warships. Consider that the 1800's India merchants used the same hull as the 74-gun ship-of-the-line, and they were confused. Sometimes deliberately. There's a long line of thought behind subsidizing a peace-time merchant that can perform some wartime patrol duties. It just never worked, however, to use the auxiliaries against equal tonnage warships.
But there is some adventure possibility in a small scale frontier setting. The ex-military PCs are impressed to run a 1,000 ton auxiliary and prevent 100-ton scout ships from resupplying the rebels...
Last note:
Ther are lots of adjectives in from of classes that meant life or death in certain circumstance -- those circumstances where they weren't entirely irrelevent. And these adjectives appear with the smaller classes, not the battle line.
A 'protected' design put concentrated armor around gum mounts and the bridge. An 'armored' design put the armor throughout the whole structure. After some small wars tested the concept, the protected designs largely disappeared. Auxiliaries (mostly liners) were funded with 'protected' armor, and a few patrol designs carried the scheme into World War I.