Amateur rocketry in the United States is primarily regulated under 14 CFR Part 101, which establishes different requirements depending on a rocket’s size, performance, and intended operation.

Not all rockets require FAA approval. However, larger rockets, higher altitudes, and certain launch locations can trigger notification or authorization requirements. Understanding where your project falls early can prevent last-minute launch delays or safety issues.

This overview explains:

• What qualifies as an amateur rocket

• The three FAA amateur rocket classes

• When FAA notification or authorization may be required

• The typical process teams follow before launch

This information is provided for educational purposes and is not legal advice.

What Is an Amateur Rocket?

An amateur rocket is generally a non-commercial rocket operated for hobby, educational, or research purposes and not intended to carry people.

Most amateur rockets fall under FAA Part 101 unless they:

• Are operated for compensation or hire

• Are intended for orbital or suborbital commercial missions

• Exceed amateur performance thresholds

Once a project crosses those boundaries, commercial spaceflight regulations may apply instead.

FAA Amateur Rocket Classifications

The FAA divides amateur rockets into three classes based on mass, propellant energy, and expected performance.

Class 1 - Model Rockets

An amateur rocket is considered to be Class 1 if it:

1. Uses no more than 125 grams (4.4 ounces) of propellant;

2. Uses a slow-burning propellant;

3. Is made of paper, wood, or breakable plastic;

4. Contains no substantial metal parts; and

5. Weighs no more than 1,500 grams (53 ounces), including the propellant.

TYPICAL EXAMPLES ( Estes kits, school science projects, small hobby rockets)

Class 2 - High-Power Rockets

An amateur rocket is considered to be Class 2 if it:

1. is propelled by a motor or motors having a combined total impulse of 40,960 Newton-seconds (9,208 pound-seconds) or less.

TYPICAL EXAMPLES (university competition rockets, high-power hobby rockets, experimental motors under FAA impulse limits)

Class 3 - Advanced High-Power Rockets

An amateur rocket is considered to be Class 3 if it is:

1. An amateur rocket other than a model rocket or high-power rocket.

When Does the FAA Get Involved?

While rocket class is a starting point, FAA involvement is driven by overall operational riskn not a single factor.

The FAA considers:

• Rocket class (1,2, or 3)

• Expected maximum altitude

• Launch site proximity to airports or busy airspace

• Duration and size of the affected airspace

• Overall risk to other airspace users

Typical Amateur Rocket Launch Process

While every project is different, most amateur rocket operations follow this general sequence:

1. Determine rocket classification

2. Estimate maximum altitude and recovery footprint

3. Decide whether FAA notification or authorization is required

4. Coordination with landowners and local authorities

5. Launch with appropriate safety controls in place

Many issues arise when teams wait until launch week to evaluate these steps.

Coming Soon!