The E2 Engine is a simple, robust, resilient machine. It starts up. It burns smooth. It shuts down. It’s tolerant to a variety of startup sequences and inlet conditions. Recently, a qualification E2 engine achieved a 4x life on total duration and starts. After 28 starts and 1300 seconds of run time, this fleet leader shows no signs of performance degradation. E2 wants to run, and it wants to run for a long time.  It wasn’t always like this though; engine development is unforgiving. Thousands of ...