Topic Tag: FX4D engines Search for: Home › LVTA Forums › Topic Tag: FX4D engines Viewing topic 1 (of 1 total) Topic Voices Posts Last Post Hydrogen Has anyone attempted to run an FX4D engine on hydrogen? Started by: Stephen Smith in: Talking Shop 1 1 5 months, 1 week ago Stephen Smith Viewing topic 1 (of 1 total)