The USS London was a Federation Starship of the early 2370s in ST-OM .
She was a Norway Class Fast Frigate.
Norway Class
Her Commanding Officer was Dayna Dawson. The USS London is mentioned in a couple of DS10 episodes, like the USS Endeavor , the USS London is in the area but rarely close enough to be of any immediate help.
Dayna Dawson is a beautiful woman, something she feels impairs her ability to be taken seriously as a starship captain.