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The Future of Air Travel

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Iwerk

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Aug 27, 2014
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Have you ever wondered what the future of airline travel would look like?
Here are a few examples of what could take place in the not so distant future.
 

rbarnes

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Aug 28, 2015
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ROFL. Dont even know where to start the flame job of the ridiculousness of using rockets to travel across the planet in mins on high g ICBM style ballistic trajectory. Dont mind the 3-5 g's on take off and 20 g's landing.... or the deafening noise and sonic booms for anyone living within 50miles of the "airport".
Musk puts PT Barnum to shame. Somehow it takes the Shuttle about 1 hrs to slow down from orbital velocities, but Musk says we're going to take off, travel half away across the planet and land in half that time ... just the way an ICBM does .... except the ICBM "lands" traveling at Mach 5.
 

Wanttaja

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ROFL. Dont even know where to start the flame job of the ridiculousness of using rockets to travel across the planet in mins on high g ICBM style ballistic trajectory. Dont mind the 3-5 g's on take off and 20 g's landing.... or the deafening noise and sonic booms for anyone living within 50miles of the "airport".
Musk puts PT Barnum to shame. Somehow it takes the Shuttle about 1 hrs to slow down from orbital velocities, but Musk says we're going to take off, travel half away across the planet and land in half that time ... just the way an ICBM does .... except the ICBM "lands" traveling at Mach 5.
Suborbital flight has a tremendous advantage, design-wise, over orbital flight. The speeds are much slower, simplifying the heat problem. An ICBM is sub-orbital, but nothing says a sub-orbital vehicle has to land at Mach 5. You can slow it up aerodynamically or using thrust in such a way to limit the G-load.

Mind you, I STILL think it's a stupid idea, but it *is* technologically feasible.

Ron Wanttaja
 

rbarnes

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Suborbital flight has a tremendous advantage, design-wise, over orbital flight. The speeds are much slower, simplifying the heat problem. An ICBM is sub-orbital, but nothing says a sub-orbital vehicle has to land at Mach 5. You can slow it up aerodynamically or using thrust in such a way to limit the G-load.

Mind you, I STILL think it's a stupid idea, but it *is* technologically feasible.

Ron Wanttaja
My point was about the TIME Musk claims he can make the flights. The times he gives requires a Mach 5 approach speed.
"New York to Shanghai in 39 mins" would require tremendous G loads on take off and landing to pull off. The video claims "26,000 kmh" which is a gnats butt away from inserting into orbit.

and again not saying it can't be done .... just that the average Joe getting on an airliner aint going to do it.... to say nothing of the INSANE noise levels of rockets launching and landing every 30mins anywhere near where anyone lives.... and then there are the weather considerations both at launch and landing site. Anyone want to jump on the rocket with it raining outside ?
 

YMO

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Joined
Jun 26, 2020
Messages
7
Have you ever wondered what the future of airline travel would look like?
Here are a few examples of what could take place in the not so distant future.
Thank you for sharing.
Great post.
please find two other examples: Advanced Air Mobility And Hydrogen powered aviation
Concerning intercontinental passenger carrying rockets, it should be noted that the UBS (Swiss Banks Union) has produced a study:
https://www.cnbc.com/2019/03/18/ubs-space-travel-and-space-tourism-a-23-billion-business-in-a-decade.html

i wish you all good weekend
Yves
 

b7gwap

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Sep 1, 2014
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281
Location
UT
Ron pointed out that sub orbital is slower than orbital flight. Also keep in mind such a trajectory is by nature parabolic, you’re kind of going more up and out and then back down, not trying to establish a free fall ellipse around the planet.
G forces are a real thing, and any manned space flight needs to consider them and margins to keep the meatbags alive. People won’t stay conscious for long above 6G without suits. Staying conscious, surviving, these words are not often considered in modern air travel. Space flight of any kind has a long way to go to get to commercial aviation’s current safety, risk, comfort, and cost levels.
It’s fun to dream though, and I’m sure he’ll sell some tickets to some rich adventurers.
 

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