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12.9 What is 'flash in the pan' ignition and for what is it useful in rocketry?




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This article is from the Model Rockets FAQ, by Wolfram von Kiparski with numerous contributions by others.

12.9 What is 'flash in the pan' ignition and for what is it useful in rocketry?

From: jjirvine@cyberg8t.com (Jerry Irvine)
[Editor's note: This is paraphrased from Jerry's postings]
Flash in the pan ignition is used to ignite clusters of small black powder
rocket motors. It consists of a thin layer of black powder on a paper plate
under the motor nozles. The powder is ignited via a regular model rocket
igniter, such as an Estes Solar igniter. When the power ignites, the
burning particles and hot gasses from the 'flash' ignite the motors.

It is used to ignite clusters of 7-469 motors and reduces the number of
igniters needed to one.

 

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previous page: 12.8 How do you ignite second stage composite motors? Can I use a black powder booster for the first stage to ignite the second (as I do with multi-state A-D rockets)?
  
page up: Model Rockets FAQ
  
next page: 12.10 I would like to perfect a method for reliable ignition of clustered multi-stage rockets. Any suggestions or tips?