As head of Launch systems, which factors do you think affect the progress of a project the most (for instance weather,

Question: As head of Launch systems, which factors do you think affect the progress of a project the most (for instance weather, gravity or other relevant factors).
- Keywords:
  gravity,
  project,
  weather
Asked by 872spcq22 to Andrew on 6 Mar 2019.
- Andrew Ratcliffe answered on 6 Mar 2019:
  
  The biggest problem with launching anything into space is the amount of energy you need to overcome Earth’s gravity. We need to accelerate a satellite to over 20 times the speed of a bullet. That means with standard chemical rocket engines, it will always cost a lot to send people or satellites into orbit. Overcoming this is the biggest challenge and inventing new ways to improve efficiency and drive down cost.

Question: As head of Launch systems, which factors do you think affect the progress of a project the most (for instance weather, gravity or other relevant factors).