After making production renderings and photos for weeks, Elon Musk finally showed the Starship test rocket finished last night.
As you can see, the Starship test rocket has a stainless steel skin, with some people scratching their heads. Steel is indeed strong enough, but weighs more than other materials used in rockets such as carbon fiber, aluminum and titanium. Musk argues however, that the resistance of stainless steel to extreme temperatures, especially heat, makes it a better fit for this type of rocket.
The Starship rocket, formerly called BFR, is an integral piece of the SpaceX road map . It is destined to take the place of the Falcon and Falcon Heavy rockets as the main launch vehicle, which means much re-entry (which means much heat).
This test model, currently at the Boca Chica launch site in Texas, is intended for subtrivalal VTROL tests, which will take place in March. The orbital version will be higher, with thicker skins and a smoother and curved nasal section, with book launches for 2020.
̵1; Evelyn Janeidy Arevalo (@JaneidyEve) 10 January 2019