Secret Projects Forum

Forum Rules - Please Read

All users should be familiar with the rules of the forum.

Secret Projects Forum Team

About us, who we are and what timezone we are in for contact purposes.

Secret (Unbuilt) Projects Forums to discuss designs that never made it to production.

Secret Early Aircraft Projects

Unbuilt and cancelled aviation projects prior to 1945. Designs that never made it into production.

Secret Postwar Aircraft Projects

Unbuilt and cancelled aviation projects since 1945. Designs that never made it into production.

Secret Missile, Bomb and Gun Projects

Unbuilt and cancelled projects of missiles, bombs, guns, and other weapons. Designs that never made to production.
  • xena

Secret Space Projects

Unbuilt and cancelled rocket and spacecraft projects. Not for current or historic produced designs.

Secret Naval Projects

Unbuilt and cancelled ships, subs etc. Designs that never made to production.

Secret Army Projects

Unbuilt and cancelled tanks, APCs etc. Designs that never made to production.

Secret Project-related books and products Books and other things you might like

Books & Marketplace

Book reviews, prerelease information, & related products

Blue Envoy Press

Forums relating to books published by Chris Gibson's Blue Envoy Press

General General discussions, not unbuilt projects

Aviation & Space

Aviation and Space discussions on historic programs that made it to production or are still current


Discussion about historic or current tanks, ships, and other non-aerospace military technologies - not unbuilt projects

Research Topics Forums dedicated to specific research topics

Aircraft Design

A forum to share Aircraft Design resources and discuss aircraft design techniques

Designation Systems

A place to research and document designation systems used by manufacturers, air forces and other organisations

Patent Pending

A forum to post patent images which might correspond to unbuilt projects


Built, unbuilt and prototype engines of all types

Avionics and Military/Naval electronics

Aircraft avionics, radars, sensors and optical sights of all kinds used on aircraft, boats, tanks, etc.

Discussion and Speculation Forums relating to off-topic discussion, alternate history and what-if scenarios

Theoretical, Fake and Generic Projects

For theoretical, generic, speculative or faked projects published in journals, magazine and books which are nevertheless likely to be of interest to forum members.

Alternative History and Future Speculation

Discussions on how alterations in history might alter the outcomes for built and unbuilt projects

User Artwork and Models

Unofficial drawings, images and scale models of real projects created by users

Site Feedback

Post any feedback on the site here.

The Bar

Post anything offtopic (but likely to be of interest) in here

Forum statistics

Latest member

Latest posts

Top Bottom