user avatar
user avatar
user avatar
fasterthanlight
  • Member for 3 years, 4 months
  • Last seen this week
  • Virginia, USA
89 votes
6 answers
16k views

How much bigger could Earth be, before rockets wouldn't work?

  • 148k
84 votes
7 answers
22k views

What can the KSP game actually teach about spaceflight and orbital mechanics, and what are its limitations?

  • 148k
35 votes
6 answers
11k views

Why aren't air breathing engines used as small first stages?

24 votes
2 answers
34k views

Launch Accelerations: Values, history

  • 1,707
12 votes
1 answer
743 views

Was the R-7 the first two stage rocket of the Soviet Union?

  • 47.3k
11 votes
1 answer
2k views

Where can I download the Soyuz Crew Operations Manual?

  • 113
10 votes
1 answer
518 views

Are the ejected first stage Electron rocket batteries really incinerated?

  • 148k
9 votes
2 answers
3k views

How can I predict what an object's orbital state vectors will be in the future?

  • 5,924
5 votes
2 answers
1k views

Does anyone know how the Flight Club website simulates Falcon 9 launches?