B20

Booster 20, the third V3 prototype built by SpaceX, began assembly in Mega Bay 1 on 6 February 2026 and was completed in just 83 days, on 30 April.

After its transfer to the Massey site in early June, B20 successfully performed two cryogenic tests, on 6 and 7 June.

The booster then moved to Pad 2, where on 10 July it fired its 33 Raptors for about 25 seconds. A first launch attempt on 16 July was automatically aborted during the ignition sequence, delaying the flight to inspect and replace several of the booster's engines.

Finally launched with Ship 40 on 24 July on Flight 13, B20 completed its ascent and boostback burn but failed during its landing phase and was lost in the Gulf of Mexico.