Subject

New Definition of Model Rocket

Reference

Canadian Aviation Regulations, Part I, Subpart 1 - Interpretation, 101.01(1)

Background

Present definition:

"model rocket" - means a rocket equipped with model rocket engines that will not generate a total impulse exceeding 80 newton-seconds, of a gross weight, including engines, not exceeding 500 g (1.1 pounds), and equipped with a parachute or other device capable of retarding its descent; (model rocket).

Technological progress has resulted in the emergence of a new form of model rocketry, known as high-power rocketry, using larger and more powerful commercially made solid propellant rocket motors and heavier rocket airframes. The Canadian Association of Rocketry proposed that Transport Canada’s definition of "model rocket" be revised to reflect the definition authorized by the Explosives Branch of Natural Resources Canada (NRC) and the definition of the Federal Aviation Administration (FAA).

The Notice of Proposed Amendment (NPA) 97-407 was agreed to at the October 30, 1997 CARAC meeting and will be submitted for amendment action to the CARs.

Action

Please apply regulations relating to model rockets using the following definition:

"model rocket" means a rocket equipped with model rocket engines that will not generate a total impulse exceeding 160 newton-seconds, of a gross weight, including engines, not exceeding 1500 g (3.3 pounds), and equipped with a parachute or other device capable of retarding its descent; (model rocket).

Expiry

This Policy Letter will expire with the appropriate amendment to the CARs.

Manzur Huq
Director
General Aviation