That makes Thunderchild at least, but not much more than, 27 years old. That's about how old 1701 was when it got refit.
NCC-2000 would be like 120 years old. The side view shown in the graphic is totally distinguishable, but I saw it from the front and could tell no difference in the time I was given. As it should be. If there was some reason you had to abandon the Excelsior design entirely then you do what you have to do, but if you didn't need to change it, why on earth would you?
I never looked to see if there was any information on whether the Excelsior class ships we regularly saw in early TNG were 60-70 years old or whether it was just a good working structure that everyone liked, so they kept making them. They've been making 737's for 50 years, but if you get booked on one you don't have to worry about it actually being 50 years old. (In fact, I would be more worried about it only being a couple years old. )
NCC-2000 would be like 120 years old. The side view shown in the graphic is totally distinguishable, but I saw it from the front and could tell no difference in the time I was given. As it should be. If there was some reason you had to abandon the Excelsior design entirely then you do what you have to do, but if you didn't need to change it, why on earth would you?
I never looked to see if there was any information on whether the Excelsior class ships we regularly saw in early TNG were 60-70 years old or whether it was just a good working structure that everyone liked, so they kept making them. They've been making 737's for 50 years, but if you get booked on one you don't have to worry about it actually being 50 years old. (In fact, I would be more worried about it only being a couple years old. )