The minimum launch site dimension for your field is 1500 feet. Assuming no public highways or occupied buildings in the area, what is the minimum distance between the launch site boundary and the launcher for a 320 Newton-second motor?

The minimum launch site dimension for your field is 1500 feet. Assuming no public highways or occupied buildings in the area, what is the minimum distance between the launch site boundary and the launcher for a 320 Newton-second motor?

• A. 100 feet
• B. 320 feet
• C. 750 feet
• D. The launcher may be located anywhere on the launch site to compensate for wind

Answer: (A)

Safety guidelines require a buffer between the launcher and any field boundary that scales with the motor’s total impulse. This distance helps ensure the rocket stays within the field boundaries even with wind or a slightly off-target ascent, keeping spectators and adjacent areas safe. For a motor with a total impulse of 320 Newton-seconds, the minimum distance from the boundary to the launcher is 100 feet. The 1500-foot field is large enough, but the rule sets a fixed minimum that you must meet regardless of field size. The other options imply larger required separations or suggest you can place the launcher anywhere to compensate for wind, which isn’t allowed—the minimum distance must be maintained.

Safety guidelines require a buffer between the launcher and any field boundary that scales with the motor’s total impulse. This distance helps ensure the rocket stays within the field boundaries even with wind or a slightly off-target ascent, keeping spectators and adjacent areas safe. For a motor with a total impulse of 320 Newton-seconds, the minimum distance from the boundary to the launcher is 100 feet. The 1500-foot field is large enough, but the rule sets a fixed minimum that you must meet regardless of field size. The other options imply larger required separations or suggest you can place the launcher anywhere to compensate for wind, which isn’t allowed—the minimum distance must be maintained.