# What is the terminal velocity of SpaceX Starship?

What is the terminal velocity of starship on earth and mars during descent?

Has SpaceX revealed or hinted the values of projected surface area and drag coefficient of the vehicle?

• That'll depend on the ballistic coefficient, wchich will depend on the design, control surface position and mass. – user20636 Dec 10 '20 at 23:43
• @JCRM And altitude. – Russell Borogove Dec 10 '20 at 23:49
• and weather @RussellBorogove – user20636 Dec 10 '20 at 23:52
• I'll bet $1.602 \times 10^{-19}$ bitcoin that it's 85$\pm$10% of the terminal velocity of an equivalent right elliptical cylinder of my choosing after the correct answer is posted. – uhoh Dec 11 '20 at 0:11
• @uhoh I thought about doing the math, but I'd have to guesstimate mass and look up published dimensions and bleaaaahhhhhhh – Russell Borogove Dec 11 '20 at 2:06