The Block 3 Booster Transfer Tube Test Tank is a test article located at SpaceX's McGregor test facility consisting of the Block 3 Super Heavy Booster's transfer tube that was tested to verify the structural integrity of it. It underwent multiple cryogenic proof test and structural load tests. Furthermore some of these tests and involved covering the test article with a cryo shell. It is now stored horizontally, more than likely retired.
History[]
The tank is believed to have been built at in the Starfactory at Starbase and then shipped to McGregor for testing, which commenced some time around late Feb 2025.
The Test Tank was spotted at the McGregor scrapyard laid down horizontally after completing testing in late August 2025.
Timeline[]
Testing Campaign[]
The test tank has undergone a number of cryogenic proof test and structural load tests, some involving the use of an additional cryo shell placed over the test article. The first cryo test was conducted on Feb 28th 2025.
Gallery[]
