paul314 November 15, 2019 05:14 AM Wow. That's starting to be respectable levels of thrust. (Back of the envelope says a 100-second burn could change the velocity of the international space station by a couple meters per second, assuming the structure held together.) A ship with a power source could go almost anywhere if they were patient. alexD November 15, 2019 06:05 AM ~5 years of life doesn't sound much for a space engine to take anything too far and come back paul314 November 15, 2019 08:35 AM @alexD is that 50,000 hours total lifespan, or 50,000 hours of time actually firing? Conventional rockets have thrust-producing design lives measured in minutes to perhaps double-digit hours. Even jet engines need maintenance every thousand hours or less, and rebuilding around 20-30,000 hours... GaryCamp November 15, 2019 09:13 AM to paul314; Where did you see the thrust numbers? I see 11,000 lbs of propellent and 12,500 watts used but no actual thrust figures I can see. Myfeather626 November 15, 2019 10:13 AM Awesome! Myfeather626 November 15, 2019 10:14 AM Post some more Pictures! paul314 November 15, 2019 10:29 AM I know it's just back of the envelope, but I'm going by energy considerations. The If the energy they're talking about actually goes to outgoing material, then momentum transfer blah blah. Definitely order of magnitude rather than exact. But that you can even imagine moving large objects with such thrusters is a big deal. Colt12 November 15, 2019 10:41 AM Hypersolar will be rolling out a full size pilot plant in early 2020 that produces hydrogen with solar panels and water. Fuel cells are about to become very popular. I would think that this would include space travel. Douglas Rogers November 15, 2019 10:41 AM The ship will reach exhaust velocity after using 70% of it's mass as fuel. This is the advantage of ion drive. FranYetso November 15, 2019 12:32 PM What are the thrust numbers? Is there a calculation for kW output to actual thrust output in a weight value?