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Is it possible to connect more than 3 solid fuel engines at a time? Answered

So I was wondering if it was possible to ignite more than three rocket engines at the same time on the same rocket with a common ignition lead. I know it's probably possible, but would like to know how to do it and is it safe. Thanks in advance!

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mikeasaurusBest Answer (author)2017-04-04

Wiring up several engines into a single ignition isn't hard, but they probably won't all engage at the same time making a smooth lift off impossible. Also, failure rate here is high which makes it dangerous to try.

Better to investigate multi-stage rockets, where a secondary engine starts when the first engine is spent. You'll get more height this way.

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AdrianH45 (author)mikeasaurus2017-05-17

Or you can just put a bigger motor in it.

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RaymondR6 (author)2018-01-30

Starting up multiple rocket motors has been a problem for decades. Around 1967 I saw a built Estes kit based on a scale model of the Apollo-Saturn 1B that used three "D" motors. The owner was never able to ignite all three at the same time, and at most had two motors lit. That is why rocket modelers use a larger motor instead of multiple motors.

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