Altitude « Altitude Competition About the Sporting Code NAR Contest Board Directory Model Rocket Safety Code Introduction Competition Altitude Competition Duration Competition Craftsmanship Competition Miscellaneous Competition Appendices Altitude Data Altitude Payload Altitude Egg Lofting Altitude Dual Egg Lofting Altitude Superroc Altitude Cluster Altitude Precision Altitude 21.1 Scope Altitude comprises twelve events open to any model rocket. The purpose of this competition is to achieve the highest altitude. 21.2 Classes This event is divided into classes based on the permissible total impulse of the motor(s). The following classes of Altitude are established: Motor Class 1/8A 1/4A 1/2A A B C D E F G