What is the maximum total impulse allowed for a rocket which does not require an FAA waiver?

What is the maximum total impulse allowed for a rocket which does not require an FAA waiver?

• A. 80 Newton-seconds
• B. 160 Newton-seconds
• C. 320 Newton-seconds
• D. There is no impulse limit

Answer: (D)

FAA waivers relate to where and how high you fly, not to a specific motor impulse cap. If a flight does not require a waiver, there isn’t a fixed total-impulse limit imposed by that no-waiver status. The impulse of the motor is part of how you categorize the rocket (A, B, C, etc.), but whether a waiver is needed depends on airspace risk and altitude considerations, not a hard numerical limit on impulse. So no-waiver flights aren’t restricted by a prescribed impulse ceiling in the safety rules; other factors like weight, recovery, and site permissions still govern safe operation. The numbers listed would imply a fixed cap tied to impulse classes, which isn’t how the no-waiver case is defined.

FAA waivers relate to where and how high you fly, not to a specific motor impulse cap. If a flight does not require a waiver, there isn’t a fixed total-impulse limit imposed by that no-waiver status. The impulse of the motor is part of how you categorize the rocket (A, B, C, etc.), but whether a waiver is needed depends on airspace risk and altitude considerations, not a hard numerical limit on impulse. So no-waiver flights aren’t restricted by a prescribed impulse ceiling in the safety rules; other factors like weight, recovery, and site permissions still govern safe operation. The numbers listed would imply a fixed cap tied to impulse classes, which isn’t how the no-waiver case is defined.