4 ms·

Nope, inside out. They're hollow, and the top section has a star cross section rather than cylindrical. The goal is to keep an overall constant pressure for the

Nope, inside out. They're hollow, and the top section has a star cross section rather than cylindrical. The goal is to keep an overall constant pressure for the entire burn time.

bfieidhbrjr 6y ago
TIL. That's amazing, thanks.
- wondringaloud 6y ago
  Which piece of it is amazing?
matt-attack 6y ago
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/EstesStandardEngine.jpg https://www.siriusrocketry.biz/ishop/images/EstesStandardEng...
- dTal 6y ago
  Estes black powder motors are in fact end-burners: https://farm8.staticflickr.com/7457/12472921013_aa92200267_k.jpg https://farm8.staticflickr.com/7457/12472921013_aa92200267_k...