posted 01-16-2026 11:19 AM               

NASA SKYLAB Full Scale Astronaut Training Multiple Docking Adapter MDA Mockup

$95,000Seller: Dan Tamburello, Denver, Colorado

Being offered is this one of a kind NASA Apollo/Skylab Program Artifact! Made by Martin Marietta in the 1960's, this Astronaut Training Mockup of the Multiple Docking Adapter (MDA), was one of the components of Skylab, the first American space station!

Built at the Martin Marietta Waterton Canyon facility, it was first used as an engineering mockup for system integration of America's first space station, and then later upgraded to a high fidelity training mockup which was used by all of the Skylab astronauts for familiarization and training.

Measuring overall an approximate 20' long by 13' wide by 15' tall including custom rolling frame, the One-G Trainer was used for crew preparation and procedural refinement at NASA's Johnson Space Center (JSC). It was flown from Martin Marietta in Denver to JSC sevearal times by way of a "Guppy" aircraft! It was later deaccessioned from the Kennedy Space Center, where it had been on public display for over forty years. The MDA was a critical module of Skylab, providing: Primary and secondary docking ports for visiting Apollo Command/Service Modules; Mission control centers for experiments, including Earth Resources Experiment Package (EREP) and Apollo Telescope Mount (ATM) control.

The MDA includes replica consoles, controls, and crew interface systems, It was built to exacting specifications outlined in MSFC MOD documents (MSFC-165 and MSFC 322) to allow realistic astronaut training and simulation of emergency and routine mission procedures. The high fidelity equipment allowed functional hands-on simulation and testing. The design emphasized realism and manual control operation to generate accurate crew procedures and validate flight hardware interface relationships.

It is located in Denver Colorado, and I am happy to assist with shipping logistics.