Hi Folks,
It seems like broadsword, rapier is a very general term of sword description that can cover many different tools designed for different jobs.
Most sword types can be defined firstly not by the hilt form, but by blade.
A pappenheimer rapier hilt may be mounted to either a broadsword blade or a thrusting rapier blade, and both create different handling weapons for different specific jobs.
One would then be classed as a rapier hilted broadsword, and the other as simply a rapier.
Specific blade choice is down to environment and what we are likely to face.
For practical battlefield use, then we are likely to face broadswords, short hangars and polearms. Best carry a broadsword or backsword blade.
For civilian duel, the lighter, faster thrusting blade serves better for fencing use. For streetfight, somewhere between the two is ideal, as on the street in the C17th, we can likely face either rapier or broadsword.
It was not unusual for military men (above the station of being issued with a munition grade weapon) to commission a stout broad or backsword blade, but mounted to a rapier hilt. A good rapier hilt still provides adequate hand protection against cuts, but this weapon is now a rapier hilted broadsword.
This is a very different tool to the longer, thinner rapier blades that are primarily designed and forged for the civilian duel or streetfight.
The civilian rapier blade through the C17th evolved by it`s own branch of development independently from the broadsword and backsword blades, which have always been employed for martial military field use.
Hope this helps
Macdonald