rockets

[dbhittin 5,000+ posts]

well me and a friend got bored and decided to build rockets and shoot them.. well i tried putting two engines in mine, but only one went off? how do u get the 2nd to go? also these are fun and cheap!

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[bds0688 10+ year member]

Like model rockets? The second engine needs to be specificially made to fire secondly, or the first made to ignite a second. If not model, I don't know.

 

[dbhittin 5,000+ posts]

ya model rockets..

 

[bds0688 10+ year member]

yeah, in that case, one of the engines has to be designed to ignite secondly, or initiate a second ignition. I think it's the second engine, as the first engine would normally just expel hot air/flames upward for the parachute, but unless it's channeled right, or burns the second motor right, no go.

I was a nerd back in middle school, I'm surprised that stuck.