Building a Dyson Sphere around a Class-B Star

[Noisy Rhysling]

True enough. Have to go on family trip, will get back to you.

Check the orbits before you go, Rich Purnell might have a better trajectory for your trip.

 

[stefan r]

Red giants (AGB stars) have some advantages over B stars. Total luminosity is over 1000X the sun. The lower gravity makes it easy to move the Dyson sphere (swarm) around with solar sails. The red giant's solar wind would have "metals" available for more swarm construction and hydrogen for fusion. Red giants with solar mass do not become super novas.

A binary star gives you some gravity assisted options. Long tethers and orbital rings could add something like a steam punk look.