---
kind: "section"
citation: "14 C.F.R. § 101.22"
title: "14"
number: "101.22"
heading: "Definitions."
url: "https://uscodex.org/cfr/14/101.22"
---

# §101.22. Definitions.


The following definitions apply to this subpart:

- (a) Class 1—Model Rocket means an amateur rocket that:
  - (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.**
- (b) Class 2—High-Power Rocket means an amateur rocket other than a model rocket that is propelled by a motor or motors having a combined total impulse of 40,960 Newton-seconds (9,208 pound-seconds) or less.
- (c) Class 3—Advanced High-Power Rocket means an amateur rocket other than a model rocket or high-power rocket.

## Notes

### Amendments

[Docket FAA-2007-27390, 73 FR 73781, Dec. 4, 2008]

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40101 note, 40103, 40113-40114, 45302, 44502, 44514, 44701-44702, 44721, 46308.

### Amendments

[Docket FAA-2007-27390, 73 FR 73781, Dec. 4, 2008]