- S1 – Altitude (S1A where the “A” refers to power class, 2.5 N-sec for Juniors; S1B, 5 N-sec for Seniors)
- S3 – Parachute Duration (S3A for Juniors and Seniors)
- S4 – Rocket Glider (free flight) (S4A for Juniors and Seniors)
- S5 – Scale Altitude (S5B for Juniors or 5 N-sec, S5C for Seniors, 10 N-sec)
- S6 – Streamer Duration (S6A for Juniors and Seniors)
- S7 – Scale
- S8 – Radio Controlled Rocket Glider (S8D for Juniors, S8E/P for Seniors)
- S9 – Gyrocopter (Helicopter) Duration (S9A for Juniors and Seniors)
The U.S. Team for a WSMC is selected by a flyoff process that is held at the opening weekend of NARAM one year prior to the WSMC. The flyoff is open to all U.S. NAR members. The next flyoff will be held at NARAM-61 to select the team for the 2020 WSMC. In between the biennial WSMC, regional FAI-sanctioned international competitions called “World Cups” are held each year, each with 4 or 5 of the 8 WSMC events. U.S. FAI fliers use these to practice their skills in preparation for a WSMC or for the US team-selection flyoff. Of the 25 or so that are held worldwide each year there is typically one or two of these held in the US every year. See the links below for more information about international spacemodeling competition and the World Spacemodeling Championships.
If you would like to communicate with an experienced US FAI flier to get help in learning more about particular events or the whole process and experience of flying at a World Championships, use this list of contact information to reach them.