Scramjet screams into history at 7,000mph

[bloodhound]

whats this "LARGER" you pple are on about. I think you mean LAGER.

[Nave]

i highly doubt that the scram jet will actually be used in a commerical flight use.

[Cap'n Refsmmat]

Why?

 

If the technology becomes reliable enough it's a viable possibility.

[Nave]

well first off even if the technology was reliable then what is the speed going to have an impact on the passenger. i mean how many g's would that speed be? and like what Rasori mentioned "wouldn't you need to start the flight in Hawaii, accelerate until about LA, and then decelerate from NY on in order to actually keep the passengers in the realm of the living (slight exaggeration given, of course)?"

thats the best point

[ecoli]

For an object going that fast, it would need a large deceleration time. Maybe if the flight went past it's target and was able to turn around in flight while decelerating. I don't know too much about this. Does that make any sense?

[Cap'n Refsmmat]

They could have it accelerate for the first half and decelerate for the second half. It decreases the average speed but it's more manageable.

Or, perhaps, have it accelerate a while, then, decelerate in the landing pattern.

[Nave]

Either way what effect would this have on the human body?

[alt_f13]

Moving fast does nothing to you. It's the accelleration that hurts.

[Martin]

They could have it accelerate for the first half and decelerate for the second half. It decreases the average speed but it's more manageable.

Or' date=' perhaps, have it accelerate a while, then, decelerate in the landing pattern.[/quote']

 

just to get some numbers

 

7000 mph is about 3000 meters per second

so at one gee acceleration it would take 300 seconds to attain that speed

 

that is 5 minutes

 

I dont know what acceleration you imagine people will put up with

but one gee is physically not all that bad (we endure it constantly

and get used to it)

 

and 5 minutes at the beginning of the trip doesnt seem too bad either

during that 5 minute acceleration period you would go about 450 kilometers

 

to me it doesnt seem likely that people would want to travel that fast on regular commercial flights---but what do I know?---some might like it as a onetime thrill---or even as a preferred way of travel

[Nave]

Ok.. so it wouldnt have a huge factor on the body when ur accelerating or anything but I wonder what a air bump would feel like at 7,000mph?

[Cap'n Refsmmat]

At the altitudes these things fly there is no turbulence.

Or it's just that the plane is going so fast the bump hardly influences it...

[Nave]

What ever goes up must come down.... but w/e about the effects i still doubt that it will go into commerical use.. if it does i doubt it would in our life time.

[Rasori]

I would agree with Nave for one main reason--as yet, we have not had a single successful supersonic commercial jet. The Concorde wasn't enough to keep itself in business, due to sound and fuel problems.

 

I can, however, see people wanting scramjet speed quite soon.

[Nave]

However unlike the concord this isnt going to have fuel problems... yet i still dont think that this gonna go into commercial flight.