Which orbital rocket has the smallest diameter?

Without fins.

Related question:

  • 2
    $\begingroup$ I'm betting it's Vanguard...or one of those wacky unguided early Japanese rockets $\endgroup$ Oct 27, 2020 at 18:19
  • 3
    $\begingroup$ With or without fins? $\endgroup$ Oct 27, 2020 at 18:29
  • $\begingroup$ Without fins better $\endgroup$
    – Joe Jobs
    Oct 27, 2020 at 19:12
  • 4
    $\begingroup$ It's probably the SS-520 again at 0.52 m diameter $\endgroup$
    – Dragongeek
    Oct 27, 2020 at 19:13
  • 2
    $\begingroup$ Yeah, I'd put my money on the SS-520, but I'd have to do some research. Some of the rockets under design, but not yet launched may be even smaller. $\endgroup$
    – Carlos N
    Oct 28, 2020 at 12:40


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Browse other questions tagged or ask your own question.