what submarine was used in the movie hunt for red october

The movie used a mix of real submarines and large model props , not a single submarine throughout. The fictional Red October was represented by an 11-foot model, while the USS Dallas was portrayed by the real USS Houston (SSN-713) in exterior shots.

What was used

• Red October: an 11-foot scale model built for filming.

• USS Dallas: the USS Houston (SSN-713) played Dallas in the movie.

• Other shots: some exterior submarine footage used additional submarines and staged setups, with interiors recreated on soundstages.

In plain terms

So if you mean the submarine for the title character’s boat, it was not a real Typhoon-class submarine — it was a movie model based on that design. If you mean the American attack sub seen in the film, that was USS Houston standing in for USS Dallas.

TL;DR

The main “submarine used” for Red October was a model prop , and the real U.S. submarine most associated with filming was USS Houston as USS Dallas.