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Nichrome Wire to Make Your Own Igniters

Nichrome wire


Nichrome is a metal with high electrical resistence. When current is past through it, it heats up quickly. This makes it ideal for making igniters for model rocket engines.

We carry two sizes. The 28-guage wire is the thicker of the two. The 32-guage wire is very thin and is ideal for bridge-wires when attached to larger diameter wires.

10 feet minimum quantity.

Note: We do not supply the pyrogen for the igniter tips, nor do we have any formulas for the mixture.

Nichrome Wire

Nichrome Wire Order Chart
P/N
Description
Diameter (in.)
Resistance
ohm/ft
Price/foot
Place Order
24036
28 AWG
0.0126
4.040
42¢
24035
32 AWG
0.0079
10.871
42¢

How To Use Nichome Wire

In small black powder propellant motors, it is possible that nichrome wire can be used "bare". Simply bend a small piece in half and crimp it hard at the bend point to deform it. This makes a thinner spot in the wire which increases its resistence (it will heat up even faster at that point). It is then used like an ordinary igniter.

To increase the reliability, a pyrogen tip is added at the tip. This iginites first and then starts the propellant in the motor burning. Making pryrogen for the tip is requires a permit from the government. Please see how to get Level 1 certification for information on applying for a government permit.

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"I teach 3rd grade and have been searching for a VERY basic model rocket lesson for an end of the year fun Science project. I have just downloaded about 20 pages from your free Rocketry Reservoir and am THRILLED at what the students are about to encounter! Thank you SO much for making this free and wonderfully basic enough even for my 3rd graders! We're going to launch the first time just as a class, but will be inviting the whole school for our second launch. You even have certificates! WOW! Thank you again!" -- Monique Clay

Apogee Components, Inc.
3355 Fillmore Ridge Hts.
Colorado Springs, CO 80907 USA
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How to get started in Rocketry.
Rocketry For Teachers
Team America Rocketry Challenge
Design Your Own Rockets

This page last updated on: 09/09/08