NASA Pondering Electro-Hypersonic Jet Boosters

See:

http://www.theregister.co.uk/2007/12...ajax_research/

On Dec 4, 11:27 am, wrote:
See:

http://www.theregister.co.uk/2007/12...asa_ajax_resea...

A electric field was to be a means to alter the diameter with electic
fields. A shock wave in the intake nozelle was requried to begin the
slowing process. As the air leaves the wave it begins to appear, like
air always does. A lower pressure behind this intake shock wave means
a high speed to the air. A double threat to combustion success.

A second nozelle inside the first to slow the faster air simple has a
brand new shock wave inside it, foiling the slowing attempts.

A front wave was to then be attempted to be laminar decelerated. And
the attempt using a restrictor nozelle was partially sucessful. i.e.
maybe the SR-71 method.

A technology to ionize was the trick with Mhe methods.

Here is the basic applied a. MY design.


nozelle-----flat plate

A litteral flat plate appears the best method

------------------------------------------------------
| engine
-air flow | flat plate
-----------------------------------------------------

Nothing more was to be allowed. A special trick is placement of the
NEW! shock wave. It exists now near the front flat face edges. The
large low air pressure directly behind the plate forms a nozelle in
effect an inverted one!

A slowing was to be caused by the effect of air pressure . The front
engine turbine blades are simply placed inside the low pressure area
of the front plate. A bypass was required to achieve a true mach 25.

All the engine dynamics in the world will do no better.


Douglas Eagleson
Gaithersburg, MD USA

On 5 Dec, 02:22, Douglas Eagleson wrote:
On Dec 4, 11:27 am, wrote:

See:

http://www.theregister.co.uk/2007/12...asa_ajax_resea...

A electric field was to be a means to alter the diameter with electic
fields. A shock wave in the intake nozelle was requried to begin the
slowing process. As the air leaves the wave it begins to appear, like
air always does. A lower pressure behind this intake shock wave means
a high speed to the air. A double threat to combustion success.

A second nozelle inside the first to slow the faster air simple has a
brand new shock wave inside it, foiling the slowing attempts.

A front wave was to then be attempted to be laminar decelerated. And
the attempt using a restrictor nozelle was partially sucessful. i.e.
maybe the SR-71 method.

A technology to ionize was the trick with Mhe methods.

Here is the basic applied a. MY design.

nozelle-----flat plate

A litteral flat plate appears the best method

------------------------------------------------------
| engine
-air flow | flat plate
-----------------------------------------------------

Nothing more was to be allowed. A special trick is placement of the
NEW! shock wave. It exists now near the front flat face edges. The
large low air pressure directly behind the plate forms a nozelle in
effect an inverted one!

A slowing was to be caused by the effect of air pressure . The front
engine turbine blades are simply placed inside the low pressure area
of the front plate. A bypass was required to achieve a true mach 25.

All the engine dynamics in the world will do no better.

Douglas Eagleson
Gaithersburg, MD USA

Could I ask you one question. A magnetic field is a non contact method
of containment. Would MHD help at all in reentry?

- Ian Parker

On Dec 5, 7:25 am, Ian Parker wrote:
On 5 Dec, 02:22, Douglas Eagleson wrote:





On Dec 4, 11:27 am, wrote:

See:

http://www.theregister.co.uk/2007/12...asa_ajax_resea...

A electric field was to be a means to alter the diameter with electic
fields. A shock wave in the intake nozelle was requried to begin the
slowing process. As the air leaves the wave it begins to appear, like
air always does. A lower pressure behind this intake shock wave means
a high speed to the air. A double threat to combustion success.

A second nozelle inside the first to slow the faster air simple has a
brand new shock wave inside it, foiling the slowing attempts.

A front wave was to then be attempted to be laminar decelerated. And
the attempt using a restrictor nozelle was partially sucessful. i.e.
maybe the SR-71 method.

A technology to ionize was the trick with Mhe methods.

Here is the basic applied a. MY design.

nozelle-----flat plate

A litteral flat plate appears the best method

------------------------------------------------------
| engine
-air flow | flat plate
-----------------------------------------------------

Nothing more was to be allowed. A special trick is placement of the
NEW! shock wave. It exists now near the front flat face edges. The
large low air pressure directly behind the plate forms a nozelle in
effect an inverted one!

A slowing was to be caused by the effect of air pressure . The front
engine turbine blades are simply placed inside the low pressure area
of the front plate. A bypass was required to achieve a true mach 25.

All the engine dynamics in the world will do no better.

Douglas Eagleson
Gaithersburg, MD USA

Could I ask you one question. A magnetic field is a non contact method
of containment. Would MHD help at all in reentry?

- Ian Parker- Hide quoted text -

- Show quoted text -

A hot re-entry with a fuel is the thrust equivalence. It would
certainly slow like an engine.

Normally an entry is hot or cool, not in between.

Playing arround while re-entering is difficult. Orbit speeds are so
high caompared to the lift or the lift or drag.

BUt. Techincally, an intentional re-entry bounced, assisted by an
MHD engine, already rich in ionized gas, could give a whole set of ??/
THis is hard stuff, exact orbital prediction and all.

MY guess is bouncing very good, without any sense of the outcomes such
as regaining orbit as opposed to a later re-entry. Ideally a titanium
metal fabric as a special drag chute could expand to form the MHD,
because the electronic part can be very simple. A set of hoola hoops
to contain gas of serial diameter shrinking, with an outlet port a
foot in diameter say. Each hoola hoop is insulated from the next and
tiamium intermediary metal is ungrounded to fill the space between
hoops. Think like a jiffly pop top as a folding method, but with
separated hoola hoops in there and no spiral.

The trick to easy MHD is that it must perform like an AC alternator.

----hoop 1----
|
^ diode
--hoop 2-----|
^ diode
hoop 3------|


Each gas charge caused the previous hoop charge. Meaning the upstream
air charged the hoop. Making a charge difference. ANd the offset
space will make a linear gas alternator.

The vehicle would have a heat shield up stream to make the bulk of the
plasma air. That is my insighful method of choice to experiment with.

If you need a complex MHD engine, use large heavy magnetic coils. The
alternator is better, it is lighter in weight.

This would make a parachute! Making a lighter load on the heat shield
and a sucessful re-entry always if you know the atitude. Always re-
enter zero angle. Skim the air then open the chute. SO de-orbit to
30 miles or so. and try the chute.

It would be way cool to see.

On Dec 6, 2:25 am, Ian Parker wrote:
On 5 Dec, 02:22, Douglas Eagleson wrote:



On Dec 4, 11:27 am, wrote:

See:

http://www.theregister.co.uk/2007/12...asa_ajax_resea...

A electric field was to be a means to alter the diameter with electic
fields. A shock wave in the intake nozelle was requried to begin the
slowing process. As the air leaves the wave it begins to appear, like
air always does. A lower pressure behind this intake shock wave means
a high speed to the air. A double threat to combustion success.

A second nozelle inside the first to slow the faster air simple has a
brand new shock wave inside it, foiling the slowing attempts.

A front wave was to then be attempted to be laminar decelerated. And
the attempt using a restrictor nozelle was partially sucessful. i.e.
maybe the SR-71 method.

A technology to ionize was the trick with Mhe methods.

Here is the basic applied a. MY design.

nozelle-----flat plate

A litteral flat plate appears the best method

------------------------------------------------------
| engine
-air flow | flat plate
-----------------------------------------------------

Nothing more was to be allowed. A special trick is placement of the
NEW! shock wave. It exists now near the front flat face edges. The
large low air pressure directly behind the plate forms a nozelle in
effect an inverted one!

A slowing was to be caused by the effect of air pressure . The front
engine turbine blades are simply placed inside the low pressure area
of the front plate. A bypass was required to achieve a true mach 25.

All the engine dynamics in the world will do no better.

Douglas Eagleson
Gaithersburg, MD USA

Could I ask you one question. A magnetic field is a non contact method
of containment. Would MHD help at all in reentry?

Yes striking and arc can create a shockwave to divert many of the
aerothermal effects and a cold plasma can also be manipulated to
provide proulsion or stear the aircraft.

The plasma can be struck by an arc on the end of a probe, a laser or
an microwave field.

Prof. Leik Myrabo of Rensselaer Polytechnic Institute has done some
'extreme' research in this field.

http://science.nasa.gov/newhome/head...p16apr99_1.htm

"This is used to climb out to a good altitude and beyond the speed of
sound where you use the magnetohydrodynamic drive," Myrabo continued.
Now the craft tilts from flying edgewise to flying flat into the air
stream. That seems wrong but for another trick. The microwaves are
reflected forward to create a superhot bubble of air above the craft
and form an air spike that acts as the nose cone as the Lightcraft
accelerates to 25 times the speed of sound.

"This cleans up the aerodynamics of a vehicle that does not look like
it should fly in that direction," Myrabo said. Even better, when the
load is properly balanced the craft sails through the air without
leaving a shock wave and virtually no supersonic wake. Water is used
by the craft to cool the rectennas and as a propellant in the last
stages of ascent.