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Erik's user avatar
Erik's user avatar
Erik's user avatar
Erik
  • Member for 10 years, 11 months
  • Last seen more than a month ago
7 votes

Why does Vandenberg have the most launches?

4 votes

Why does it take so long for ISS garbage to fall out of orbit?

6 votes
Accepted

Why would a significant non-zero angle of attack be an advantage during 1st stage burn?

2 votes

Why does spinning help stabilisation?

0 votes

Why does a spacecraft's attitude become stable when it rotates?

14 votes
Accepted

Is ISP all there is to engine efficiency?

4 votes

Theoretical Asteroid Composition and the economy

12 votes

Lowest ISS microgravity

1 vote

Was the Apollo spacecraft always gravitationally bound to the Earth-Moon system?

2 votes

Engine on a gimbal vs ailerons

4 votes
Accepted

How is the minimal $\Delta v$ transfer between non-coplanar orbits calculated?

1 vote

Is the Oberth effect applicable to any speed change, or only to ejection of reaction mass?

10 votes

What CAD system do the ISS designers use?

5 votes

Horizontal space launch

5 votes

Oberth is confusing me. Apparent violation of conservation of energy

6 votes

Why do we use the gravitational acceleration at the Earth's surface when calculating the specific impulse of an engine?

5 votes

What does "self-pressurizing" mean in regards to propellant tanks?

1 vote

Is higher delta-V required to enter polar orbit than equatorial orbit around another planet?

2 votes

Blue Origin's The New Shepard crew capsule's design

2 votes
Accepted

Mathematics of Gravity Assists

15 votes

Why was Dragon sent to the isolation room?

2 votes

How to calculate the sphere of influence radius of the sun and other stars?

5 votes

Why does the New Shepard vehicle not have an exhaust trench?

3 votes

Does terminal velocity play a significant role when launching from Earth?

6 votes

Why does SpaceX have a launch window for a pad abort test?

16 votes
Accepted

What's inside NASA N911 Shuttle Carrier Aircraft (SCA 747)?

3 votes
Accepted

Is lagrange point L1 stable?

7 votes

Simulation of a rocket with no fins

6 votes

Could air be collected by a tether system from orbit?

1 vote

Turbo Pumps and NPSH in Space