Ignition Devices

E-matches, starters, igniters, initiators and the like

Getting started

Generally, there are two classes of ignition devices in high power rocketry (HPR): igniters/starters, and e-matches. The former are used to start Ammonium Perchorate Composite Propellant (APCP) motors from a 12-volt supply on the ground, while the latter can be used to start smaller black powder motors on the ground, parachute ejection charges in-flight, and second-stage motors in-flight.

Fully commerical-off-the-shelf (COTS) options

From the Apogee website:

• E-matches - While these are regulated by the government and require a Low Explosives User Permit (LEUP) to purchase, you can make your own from a kit without a permit. Order the Starter Chipboards and some special igniter dip designed for low-current igniters. We also have (as of November 2018) an ATF approved non-regulated e-match called the Firewire Initiator and the Firewire Mini that does not require a LEUP! This would be the primary choice if you didn't want to dip your own Starter Chipboards.

Chipboards

This part usually contains a nichrome wire that heats up when current is passed through them.

Pyrogen

This is the part that burns. Apogee sells the H-3 Compound E-match Dip for making e-matches (low-current, low-voltage, to ignite black powder usually) and QuickDip Pyrogen for longer-burning starters (starting APCP motors on the ground or in the air with high current).

QuickDip Pyrogen Test

Partially COTS options

DIY

Ematch substitute