All those 60s, 70s, 80s and 90s kids out there may remember the classes of model rocket engines – generally A, B, C, and D sized engines used to push your cardboard tube with balsa fins skyward.

Colorado Public Radio news recently reported on the business plans of Estes, a small, closely held private firm that makes small rocket engines and ... known for its model rockets for hobbyists.

“The Estes campus is referred to as the model rocket capital of the world ... Estes manufactures the cardboard cylinder engines that power their model rockets in Penrose.

When you’re building and launching a variety of advanced model rockets like [Joe Barnard], you don’t want to spend time building (and debugging) specialized flight computers for every rocket ...

The company is running final tests on its systems, including static fires, separation trials, and pressure tests across ...

A laboratory prototype of a plasma electric rocket engine based on a magnetic plasma accelerator has been produced by Rosatom ...