3 ms·
>But really, these are ballistic trajectories. Are we going to put everyone in G suits? I assume you mean because minimum-energy ballistic trajectories[1] come
by schiffern 8y ago
>But really, these are ballistic trajectories. Are we going to put everyone in G suits?
I assume you mean because minimum-energy ballistic trajectories[1] come into the atmosphere very steeply, so the G-forces are much higher.
But by using flatter trajectories (closer to an orbit than a parabolic "hop"), you reduce the angle of entry considerably, at the expense of using more fuel.
The result is that for Earth-to-Earth rockets, essentially all trip distances require the same amount of fuel.
>It takes about 30 minutes between when they start loading people onto a plane and when they take off (and baggage is already on!).
I wonder if they can pack baggage into a lightweight "carriage" during the boat ride, the simply load that single carriage onto the rocket. Or even a few carriages.
It will incur a mass penalty ("box within a box"), which means fewer passengers. But if it speeds up total trip time it could improve competitiveness with long-distance plane trips.
Either that, or just force everyone to buy SpaceX-brand standardized luggage that's ultra mass-efficient and supports automated handling/loading. :)
[1] http://hopsblog-hop.blogspot.com/2014/06/travel-on-airless-worlds.html http://hopsblog-hop.blogspot.com/2014/06/travel-on-airless-w...
- greglindahl 8y agoYou mean pack baggage in containers like the ones already used for cargo on large passenger aircraft? https://en.wikipedia.org/wiki/Unit_load_device https://en.wikipedia.org/wiki/Unit_load_device
- schiffern 8y agoYes, that's exactly why I thought of it! Thanks for the link. If it makes sense for airlines, it stands to reason that it probably makes sense for rocket-based passenger travel too. Though I expect the containers will be even more heavily mass-optimized than those used on airplanes.