How Recovery Wadding Protects a Model Rocket Parachute

Updated October 15, 2026.

Recovery wadding forms a protective barrier between the motor’s ejection gases and the parachute, streamer or other recovery components. Without the specified protection, hot particles can melt, scorch or weaken the recovery system.

Why wadding is needed

At the end of the approved delay, the motor’s ejection event pressurizes the rocket and separates the nose or payload section so the recovery system can deploy. Flame-resistant wadding helps keep hot gas and particles away from the packed recovery material.

Use only approved flame-resistant material

The NAR Model Rocket Safety Code calls for flame-resistant or fireproof recovery-system wadding. Do not substitute ordinary tissue, paper, cotton, insulation or another household material. Follow the exact rocket instructions for the correct product and quantity.

How much should be used?

The answer depends on the body-tube diameter, rocket design and manufacturer instructions. The goal is a protective barrier that does not block recovery deployment. Do not pack it so tightly that the recovery system cannot eject.

Wadding is not the whole recovery system

Also inspect the parachute or streamer, shroud lines, shock cord, attachment points and nose-cone fit. Pack every component in the order shown by the instructions and check for tangles or damage.

Flight packs and wadding quantities

Some verified engine flight packs include a stated number of wadding sheets with motors, starters and plugs. Confirm the package count and the exact rocket requirement; a flight pack is not universal.

After every flight

Inspect the recovery system for heat damage, tears, melted material, broken lines or weakened attachment points. Replace damaged parts before flying again.

Use the launch-day checklist and the exact manufacturer instructions for preparation.