#20 in Model rockets & kits
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Reddit mentions of Estes C6-5 Engines Bulk Pack
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Reddit mentions: 1
We found 1 Reddit mentions of Estes C6-5 Engines Bulk Pack. Here are the top ones.
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Estes model rocketry is recommended for ages 10 and up with adult supervision for those under 12. Must be 14 to purchase in California, New Jersey, and North Dakota. Must be 16 to purchase in Rhode Island.
Specs:
Heh. Elon tweeted earlier that he's not sure if Raptor will get the world record of thrust/cost.
Raptor gives 448,000 pounds of thrust, so that's right about 0.25 pounds per dollar.
According to http://www2.estesrockets.com/pdf/Estes_Engine_Chart.pdf, an Estes C6-5 (the engines I used to use when I was like 10) gives 3.4 pounds of thrust.
At Amazon, you can get 24 of them for $68: https://www.amazon.com/Estes-C6-5-Engines-Bulk-Pack/dp/B0006N6UIW/ref=sr_1_2?ie=UTF8&qid=1550860885&sr=8-2&keywords=c6-5
which is $2.88 each. This means these engines give 1.2 pounds of thrust per dollar, meaning that it beats Raptor by a factor of 4. Elon's wayyyy off the world record :P