There is a moment in every rocket engine test when the planning stops, and the engine tells you what is actually happening.

In this episode of Throttle Up, bluShift Aerospace founder and CEO Sascha Deri joins Justin Starbird from the test site in Brunswick, Maine, to break down what the team learned from its latest hot fire test. The engine burned for approximately one minute and 40 seconds, giving the engineering team valuable data on combustion stability, efficiency, thermal protection, and the changes made leading into the test.

But some of the most interesting discoveries came after the test.

Sascha shares why bluShift is now moving quickly on a 14-inch motor that can be built, handled, tested, and iterated more efficiently. He explains how the smaller platform can help the team learn faster, apply those lessons back to the larger 24-inch engine, and pursue a growing market of aerospace and defense customers looking for alternatives to traditional solid rocket motors.

The conversation also covers what Sascha is hearing directly from the market, the challenges around the availability and cost of legacy solid rocket motors, and the possibility of combining bluShift’s smaller and larger propulsion systems for entirely new applications.

For investors following bluShift, this episode offers a closer look at how testing, customer conversations, engineering decisions, and capital efficiency are coming together as the company determines what to build next and where its propulsion technology can create the most value.

Every successful company has people who believed long before the headlines.

In this episode of Throttle Up, Justin Starbird speaks with Greg Turis, one of bluShift Aerospace's earliest supporters and now an investor in the company. Greg shares how a small meetup led by Sascha Deri introduced him to an ambitious vision that would eventually become bluShift Aerospace, what those first conversations were like, and why he has continued to support the company over the years.

Recorded during the MAREVL Hot Fire Rocket Engine Test in Brunswick, Maine, this conversation provides a unique perspective on the value of early believers, the importance of adapting a vision into a business, and the excitement of watching a company grow from an idea into reality.

Recorded live at the MAREVL Hot Fire Rocket Engine Test in Brunswick, Maine, Justin Starbird sits down with bluShift Aerospace investor Howard Jones Jr. to discuss why an experienced nuclear engineer believes in the company's future.

Howard shares how he first discovered bluShift, what convinced him to invest, and why the company's focus on safety, affordability, and bio-derived propulsion technology stands out in today's aerospace industry. Drawing on decades of experience at Maine Yankee and Westinghouse, he explains how engineers evaluate emerging technologies and why solving difficult problems with practical solutions creates long-term value.

This episode offers a firsthand perspective from an investor who understands complex engineering, recorded just moments before one of bluShift's most important engine tests.