Firefly has talked about using it for their larger vehicle.
LM could build XS1using AR1 and RL10. Sent from my SM-T810 using Tapatalk
Quote from: TrevorMonty on 01/12/2021 04:53 pmLM could build XS1using AR1 and RL10. Sent from my SM-T810 using TapatalkXS-1 was canceled by Boeing.
“Aerojet Rocketdyne could be in a position to hot fire the AR1 engine in late 2022,” the company said in a statement to CNBC on Tuesday.
Doesn't stop LM building their own version.