Non-Complex Flights - Rockets must utilize a motor with a total impulse less than 20,480 Ns ( < "O" motor)
Complex Flights - Rockets must must utilize motors with an accumulated total impulse of less than 10,240 Ns ( < "N" motor)
We recognize that traditionally LDRS has provided a showcase for large motors in the “O” thru “Q” impulse range but our launch field in the Richard Bong Recreational Area will not support these larger motors. In order to maintain the safe distances required by NFPA 1127, any launch of a rocket containing an “O” motor (or above) would require shutting down a publicly accessible road within the park. We explored this option with park officials and were informed that they would need to dispatch two rangers to police the road closures. We were also informed that we would be responsible for the salaries and benefits of these rangers for the duration of the launch. This expense was simply too large for our budget to absorb.
Launching at The Richard Bong Recreational Area has always required some flexibility on our part to maintain public access to this state owned resource. The LDRS 33 Planning Committee apologizes for any inconveniences this action may cause in your planning for the launch.