SN4

Overview

Type: Prototype
Class: Starship
Status: Destroyed
Fate: Ground Support Equipment failure resulted in explosion
Year Built: 2020
Year Decomissioned: 2020

History

While under construction SN4 was partly built from some of the undamaged sections of SN3.

SN4 became the first prototype (excluding tank tests) to pass a cryogenic test on April 26, 2020.

Following two static fires in early May, Raptor SN18 was removed on 8 May ahead of another cryogenic test which it passed on 8 May. The new Raptor SN20 was installed as a replacement on 10 May.

During a static fire 19 May 2020, the prototype was damaged after the thrust from the raptor engine damaged ground support equipment resulting in a fuel leak.

After another static fire on 29 May 2020, the Ground Support Equipment’s quick-disconnect failed resulting in the loss of the vehicle in a subsequent explosion.

Milestones

All dates & times are local unless otherwise indicated.

Date Type Location
March, 2020 Construction Boca Chica, Texas
24 April 2020 Moved to Pad Suborbital Pad A, Boca Chica, Texas
26 April 2020 Cryogenic Pressure Test Success Suborbital Pad A, Boca Chica, Texas
5 May 2020 Static Fire Success Suborbital Pad A, Boca Chica, Texas
Test completed using main tank.
7 May 2020 Static Fire Success Suborbital Pad A, Boca Chica, Texas
Test completed using header tank.
9 May 2020 Cryogenic Pressure Test Success Suborbital Pad A, Boca Chica, Texas
19 May 2020 Static Fire Issue Suborbital Pad A, Boca Chica, Texas
Ground support equipment was damaged during testing, resulting in fuel leak.
29 May 2020 Static Fire Failure Suborbital Pad A, Boca Chica, Texas
SN4 was destroyed in an explosion following ground support equipment failure.
29 May 2020 Decomissioned Boca Chica, Texas

Raptor Engines

Engine Number Installation Year
SN18 2020
SN20 2020

Location History

Location Date From Date To
Production Facility (Boca Chica, Texas) March 2020 24 April 2020
Suborbital Pad A (Boca Chica, Texas) 24 April 2020 29 May 2020


Related

More Information

UTC Time

Friday, 30-Jul-21 17:38:26 UTC

Boca Chica Local Time

Friday, 30-Jul-21 12:38:26 CDT