Sloop trials shaped Flower-class corvettes

How did naval-standard sloops help the smaller commercially built corvettes?

They provided tested evidence about the weapons, equipment, and operating qualities a useful escort required.

Corvettes were smaller and built to commercial rather than full naval standards. Sloop construction and exercises had already shown the Admiralty what an escort needed. Designers could pair a suitable commercial hull with a known set of weapons and equipment. That evidence let commercial yards move rapidly into production without starting from an untested requirement.