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A comment on If Rockets Were Transparent [video]. Parent comment

Re:If Rockets Were Transparent [video] by matt-attack on Friday May 15, 2020 @12:53PM (#23194361)
If you ever used a toy rocket as a kid, the engines had a long hole down the middle. Apparently the Space Shuttle uses the same idea:

https://www.siriusrocketry.biz/ishop/images/EstesStandardEng...

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Re:If Rockets Were Transparent [video] by dTal on Friday May 15, 2020 @03:31PM (#23196373)
Estes black powder motors are in fact end-burners:

https://farm8.staticflickr.com/7457/12472921013_aa92200267_k...

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