Nemeski@lemm.ee to Space@lemmy.world · 7 days agoRussia Claims New Plasma-Based Engine Could Cut Mars Travel to Just 30 Daysgizmodo.comexternal-linkmessage-square33fedilinkarrow-up144arrow-down110
arrow-up134arrow-down1external-linkRussia Claims New Plasma-Based Engine Could Cut Mars Travel to Just 30 Daysgizmodo.comNemeski@lemm.ee to Space@lemmy.world · 7 days agomessage-square33fedilink
minus-squarethreelonmusketeerslinkfedilinkEnglisharrow-up3·7 days ago The only actual metric they quoted is exhaust speed? Not saying we shouldn’t be skeptical, but isn’t that the most important metric? A crazy-high exhaust velocity is how you get an engine with crazy-high specific impulse.
minus-squareSkybreakerEngineer@lemmy.worldlinkfedilinkEnglisharrow-up3·7 days agoFuel type, specific impulse, thrust, power consumption, engine mass and volume…
minus-squarerandombullet@programming.devlinkfedilinkarrow-up3·edit-27 days agoI would argue that fuel consumption would be quite important, same with power usage. Edit: and also exhaust mass. If it’s 1g of mass exhausted then it’s a moot point.
Not saying we shouldn’t be skeptical, but isn’t that the most important metric? A crazy-high exhaust velocity is how you get an engine with crazy-high specific impulse.
Fuel type, specific impulse, thrust, power consumption, engine mass and volume…
I would argue that fuel consumption would be quite important, same with power usage.
Edit: and also exhaust mass. If it’s 1g of mass exhausted then it’s a moot point.