Why post an answer when you haven't the slightest idea what you are talking about?
When I take off in two-seat Cessna single engine trainer with a second passenger and full fuel, do you think I should alert the tower that "Cessna-two-eight-zero-heavy is ready for takeoff"? LOL!
(As others have said here, "heavy" originally identified 747s, 1011s, and DC10s, and has grown to include other wide body aircraft that generate substaintial wake turbulence.)
ML/NJ