2 ms·
That begs an interesting comparison in fuel usage (kJ or $ basis): supplying dV for one pound to orbit vs. the energy required to perform the work needed to ove
by thereisnospork 3y ago
That begs an interesting comparison in fuel usage (kJ or $ basis): supplying dV for one pound to orbit vs. the energy required to perform the work needed to overcome ~8,000 miles of marginal drag from +1lb of cargo on a ship.
Fuel usage being the limiter of terminal economics once launch systems are commodified to the degree ships are.
- pfdietz 3y agoIt's important to note that most of the propellant is not fuel, it's liquid oxygen. And LOX is the second cheapest industrial liquid (after water). As for the fuel itself, natural gas is much cheaper than jet fuel per unit of combustion energy.