Main Engine Cut Off

Jalopnik posted a gearhead-focused feature on the Roush Fenway Racing-built internal combustion engine that will be used on ULA’s upcoming ACES upper stage. Logan Kamperschroer mentioned this in my interview with him last week as something very intriguing to him. Cool to see an in-depth article on ACES focused on the internal engine and the inner workings of that piece itself, rather than the ACES as a whole.

Sidenote: I can’t wait to see how Vulcan looks when it is actually built. I really hope it ends up looking more Atlas V-like than the Evel Knievel garbage it looks like in the press images.