NAR HPR Launch Safety & Recovery Procedure 3

Question 1

According to NAR safety codes, what minimum delay is recommended between the launch command and ignition to allow personnel to move to safe positions?

Accepted Answer

5 seconds

Answer

A 5-second countdown is standard, giving personnel adequate time to verify range clearance and reach safe positions.

Question 2

If a high-power rocket motor ignites but the rocket fails to lift off (a 'hang fire'), what is the correct procedure?

Accepted Answer

Wait at least 60 seconds before approaching

Answer

NAR protocols require waiting at least 60 seconds after a hang fire before any approach, as delayed ignition can still occur.

Question 3

Which factor most directly determines the minimum launch site area required for a high-power rocket flight?

Accepted Answer

Motor total impulse class

Answer

The NAR and FAA site size requirements scale with motor total impulse class, ensuring rockets stay within the designated area.

Question 4

What does a 'motor certification' requirement mean in the context of NAR high-power rocketry?

Accepted Answer

The motor has passed third-party testing and is approved for use at NAR events

Answer

NAR requires that all motors used at sanctioned events be certified by an approved certifying organization such as NAR or TRA through standardized testing.

Question 5

During pre-flight recovery system checks, a flier notices the ejection charge is borderline weak. What is the best action?

Accepted Answer

Increase the ejection charge to a tested, appropriate size

Answer

Ground-testing ejection charges allows the flier to confirm deployment reliability before flight, and the charge should be increased to a verified level.

(NAR HPR) NAR High-Power Rocketry Certification Practice Test

(NAR HPR) NAR High-Power Rocketry Certification Practice Test

NAR HPR Launch Safety & Recovery Procedure 3