This table is a combination of tables from the Model Rocketry handbook and the “Laws and Regulations for Transportation, Use and Storage of Fireworks in California”
|Equivalent Motor Type|| Maximum Combined Total Impulse
|Minimum launch Site Dimensions
(Diameter in feet)
|Radial Distance of Launcher from People
|1/2A||1.25||50 NAR/CA||15 NAR, 30 CA|
|A||2.5||100 NAR/CA||15 NAR, 30 CA|
|B||5||200 NAR/CA||15 NAR, 30 CA|
|C||10||400 NAR/CA||15 NAR, 30 CA|
|D||20||500 NAR/CA||15 NAR, 30 CA|
|E||40||1,000 NAR/CA||30 NAR/CA|
|F||80||1,000 NAR/CA||30 NAR/CA|
|G||160||1,000 NAR/CA||30 NAR/CA|
|H||320||> of 1,500' or 1/2 expected altitude NAR, 1,500 CA#||Simple 100 NAR, Complex 200 NAR, 30 CA|
|I||640||> of 1,500' or 1/2 expected altitude NAR, 2,500 CA#||Simple 100 NAR, Complex 200 NAR, 150 CA|
|J||1,280||> of 1,500' or 1/2 expected altitude NAR, 3,500 CA#||Simple 100 NAR, Complex 200 NAR, 150 CA|
|K||2,560||> of 1,500' or 1/2 expected altitude NAR, 5,000 CA#||Simple 200 NAR, Complex 300 NAR, 200 CA|
|L||5,120||> of 1,500' or 1/2 expected altitude NAR, 7,000 CA#||Simple 300 NAR, Complex 500 NAR, 300 CA|
|M||10,240||> of 1,500' or 1/2 expected altitude NAR, 10,000 CA#||Simple 500 NAR, Complex 1,000 NAR, 500 CA|
|N||20,480||> of 1,500' or 1/2 expected altitude NAR, 15,000 CA#*||Simple 1,000 NAR, Complex 1,500 NAR, 1,000 CA*|
|O||40,960||> of 1,500' or 1/2 expected altitude NAR, Not Legal in CA||Simple 1,500 NAR, Complex 2,000 NAR, Not Legal in CA|
|>O||>40,960||Not USA legal||Not USA legal|
* Complex rockets up to 20,480NS are legal in CA. Simple rockets
must be under 10,240NS.
#Waivered flights require that the launcher is 1500' from any occupied structure where as unwaivered rocketry, the launcher can be anywhere inside the launch site to optimize use of the prevailing winds.
Simple is a single motored rocket.
Complex is a multi motored rocket.
CA State Fireworks regulations doesn't define how the Min Launch Site dimensions is measured, so I used the Model Rocketry handbook definition. Nor does the CA State Fireworks regulations define how to use "...estimated altitude likely to be achieved by the rocket.." in launch site dimensions. The Model Rocketry handbooks says "... shall be not less than one-half the maximum altitude.." I interpret this to mean the above table is minimum unless you fly higher than double launch site diameter. The Model Rocket Safety Code does not include expected altitude in it's launch site size calculation. The High Power Rocket Safety Code of March 2006 now includes expected altitude as part of launch site dimensions.From State Fireworks Regulations, Title 19, California Code of Regulations, Chapter 6 Article 17. Model Rockets (Applies only to FAA waivered activities, unwaivered isn't addressed.)
§1037. Launch Site Standards
4.9.1 For a circular area, the minimum launch site dimension shall be the diameter, and for a rectangular area it shall be the shortest side.
4.9.4 As an alternative to the minimum launch site dimensions of the above table, the size of the launch site shall meet one of the following criteria: