I build large, (1/72) US SSNs exclusively, which require months of research before I design, print, and assemble them. Large scales leave no room for error and require the requisite detail, meaning I have to have a reference image to include anything in the 3D model.
The NR-1 was the only nuke I ever saw with a red tail and I have an extensive research library of images. All classes of submarines change their outward appearances over their lifetimes, and the Permit class is no exception.
Being the first class to incorporate spherical bow arrays made them ideal as submarine Hunter Killers. As sonar evolved, the Permits added a distinct bulge topside running down the port side, from the sail to the engine room, which housed the towed array (new in the 70’s) when it was stowed. So you have two major “looks” to this class over its life.
The Sturgeon class which followed, was of similar design, just larger and more capable, but the Permits led the way. Spherical bow arrays are still in use today!
One of my boats had a teak deck, (except over the RC) and a slice sits in front of my keyboard along with a piece of the pressure hull.
Flasher was a hot-runner in the mid-70’s out of San Diego. It was hard to stand out in that squadron.
-As for up-bubbles, I can’t think of any boat that stood out on the waterfront like the first flight LA class. It always looked like it was ready to pounce!
Next year, I have two hulls to knock out. One is 1/72 and the other will be 1/144 to make it easier for the customer to transport to related events throughout the state, (this state/boat being the USS Arizona) as it starts to come together over the next few years.