Re: Proposals for air breathing hypersonic craft. V

Nov 09, 2008 7 Replies
A


There were three other proposals for air breathing hypersonic


> propulsion I, II, and III I made, and then there was a fourth under
> the title "Could we just circulate the air in scramjet propulsion?"
> I'll refer to that fourth one as "Proposals for air breathing
> hypersonic craft. IV". Then this next one will be "Proposals for air
> breathing hypersonic craft. V".
> Suppose we made the intake path for the supersonic, hypersonic air be
> in the form of a J-bend pipe. Then the incoming air would first
> initially be moving backwards with respect to the craft at high Mach
> speed but the J-bend would direct this air forward so that with
> respect to the craft it is now moving at zero relative velocity.

Huh? That's like saying the top of a wheel or caterpillar track stops relative to the vehicle. In fact it moves forward at twice the speed of the vehicle relative to the ground. Don't give up your day job.

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N

Dear Robert Clark:

Can you stop proposing spending great scads of time consuming oxygen and releassing ozone-destroying water vapor in/near our ozone layer, and leave the rest of us alone?

Rockets, catapults, or elevators are the ways to go.

David A. Smith

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B

What? you mean common sense or forbid deductive logic and reasoning should be considered?

~ BG

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U

Robert Clark wrote: [snip]

[snip crap]

Christ's blood on a Saltine cracker. Direct shock waves to converge at the craft's rear into walls of an elongated afterburner. There ya go, stooopid - self-containment, no walls to melt, and lots of time to burn fuel at small local velocities without sacrificing the large ground velocity.

1) Look at the problem. 2) Think real hard. 3) Write down the answer.

It's called "intelligence", and it works. Nothing works better no matter how many Diversity hires you have banging on typewriters (or "safely" stowed in management).

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R

You might as well just have a long combustion chamber.

Bob Clark

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A

You might as well just have a long combustion chamber. ========================================== Hey Clark! Any idea what an afterburner IS?

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surprise... it's a long combustion chamber.

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R

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

The point is having a long combustion chamber, long enough for combustion to complete, would make the engine impractically heavy.

Bob Clark

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A

The point is having a long combustion chamber, long enough for combustion to complete, would make the engine impractically heavy.

Bob Clark =========================================== Funny how all those impractical afterburners are fitted to so many impractical aircraft but a j-tube wouldn't be impractically heavy (or even work). Don't give up your day job.

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