Virginia-Class Block IV
Built from original CAD files commissioned for Iron Keel. The flagship project.
Built in an afternoon. Built to last.
A workshop developing display-scale submarine models using Keel Core hybrid construction. Not shipping yet — follow the build.
A traditional plastic submarine kit is 300 parts, brittle, and takes a winter to finish. A custom-built display model costs thousands and requires a year of waiting.
There hasn't been a middle path. Something big, accurate, durable — and accessible. Something a veteran could build with his grandson. Something that gets the details right without requiring the patience of a saint.
That's what Iron Keel is building.
Built from original CAD files commissioned for Iron Keel. The flagship project.
Built on the 4" Keel Core system using a licensed hull design.
Commemorative and custom builds — hull numbers, specific paint schemes, unique features like the Cribbage Payload Module.
Keel Core is the reason an Iron Keel kit has 20 parts instead of 300. A Schedule 40 PVC core handles the structural work; 3D-printed parts handle the detail — bow, sail, stern, control surfaces.
The result is a sturdier model, a faster build, and a scale no traditional kit can match.
Every project update, every test print, every lesson learned lives on r/Military3DPrinting. Come watch the fleet come together.
Visit the subreddit →Iron Keel kits aren't shipping yet. Drop your email and we'll let you know when they are. No spam. No marketing. Just a heads-up when something's ready.
No spam. Ever.