Originally posted by Employee 2-4601:
So, my question is: how were boats used in Age of Sail naval combat (for LBB2) and how were they used in the battleship era (for HG)?
Well, as you mention, back in the day boats were useful for operations that the deep-hulled ships were unsuited for: typically, launching amphibious assaults (often stealthily) against shore facilities or ships at anchor in protected harbors. Since most streamlined starships can land, this is less of an issue in Trav. The notable exception IMTU are servicing large (and in a BT TU, I'm talking 1000- to 5000-dtons) freighters; I keep such starships unstreamlined to deter hijackers and corsairs who might want to wilderness refuel them, and I service them on-orbit with a fleet of small craft to improve the efficiency of cargo distribution and reduce turn-around times.
In the battleship era, fighters are not that useful (especially at higher TLs due to the quirks in HG2) in combat without some house rules additions (anti-missile screen and squadron-as-battery, for examples), but again, boats in particular still have their place for boarding/inspection/resupply operations where it is unwise to risk a ship-of-the-line pulling alongside a potentially-hostile unvetted Trader. Since most HG2 fighting ships can make 6Gs, the pursuit role is a non-issue.
In all Trav settings however, small craft are almost always preferable for in-system operations, mostly from their versatility. You can build a big craft to move materiel around on interplanetary routes, but you will usually find that it is cost-equivalent to fielding a fleet of small craft to do the same haulage.
As for small-craft-as-aircraft, I'd simply point out that once missiles and drones get sophisticated enough, piloted fighters are an unneccessary risk and expense. Likewise, without some sort of ship-killing single-shot "torpedo", fighters-as-PT-boats don't work in Trav either.