As mentioned in today’s Safety Training, we've made some updates regarding the safety factor requirements for the propellant tank. In summary, the safety factor on propellant tanks has been decreased to 1.5, but please review the documents for details. These changes are reflected in both the System Requirements and the Safety Guidelines.

System Requirements — Changes were made to the following sections:

  • 2.2 (the last two guidance documents listed) 
  • 3.2.4.10 through 3.2.4.18 (Propulsion System)

Safety Guidelines — Revisions were made to  the following sections:

  • 3.6.5 (Pressure Vessels)
  • 4.3 (Operating Pressures)
  • 4.8.2 (Pressure Ranges) 
  • 7.1.1 (Proof Pressure Testing)

The links to these documents have not changed. They are still available at: bit.ly/B11SystemReqs and bit.ly/B11Safety

As usual, please feel free to post questions in the Forum.