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ABOUT EXODUS AEROSPACE

HORIZONTAL IN LINE LAUNCH STAGING:

MAKING HILLS OUT OF THE MOUNTAIN OF SPACE LAUNCH

I DON’T HAVE ALL THE ANSWERS, BUT I MAY HAVE SOME OF THE QUESTIONS.  My question is:

“Should we consider Horizontal In Line Launch Staging (HILLS) to advance aerospace operations?

WHAT IS “HILLS”?

This is the joining of two delta wing aircraft, nose to tail, to operate as one aircraft powered by the first stage until separation to deliver the second stage to a more distant mission.

P5.2.5N

P5.2.5O

PATENT US 8528853   http://www.google.nl/patents/US8528853

WHAT DOES THAT OFFER?  As in traditional vertical space launch, it allows a smaller second stage to reach a greater mission range with less drag and mass.  Our version of horizontal launch enjoys advantages in high lift to drag over other horizontal systems.  Because the second stage is a low aspect ratio craft it serves as the leading edge strake to the wing of the first stage closely attached to it.  Photos of the Concorde show a visible vortex that helps it to take off without the usual flap mechanisms seen on conventional aircraft.

vortex

CONCORDE HIGH ANGLE OF ATTACK VORTEX

P5.2.5A

PLAN VIEW OF HILLS VEHICLES

When the two delta wings are joined there is still enough wing exposed on the first stage to allow both wings to generate lift while drag is still lower.  Because of this and the added friendly vortex, the combined craft take off and fly with heavy loads better than either individual craft could.  Aerodynamic analysis and refinement yield an efficient airframe that can deliver greater performance to that mission.

Other horizontal ideas use “piggy back” staging.  Those create nearly double the frontal area which adds drag and reduces performance.  By in-line staging frontal area is reduced to offer much lower drag in addition to favorable vortex lift characteristics.  These are not the best way to do staged launch to space in horizontal flight.

PIGS IN THE PAST (Sci-Fi horror?)

WTF1

…AND HYPERSONIC TOO?  (RECENT USAF ORBITAL CONCEPTS):

SCRAM-PIGS 2

It’s hard enough to go supersonic in the atmosphere with that much drag, let alone hypersonic.  This looks like putting a beer barrel on top of a formula one racer!

In Line staging also avoids dangerous staging as in the crash of a D21 drone launching  from an SR71:

MD21A

THE IDEAL MISSION

MD21C

THE COLLISION

MD21D

THE CONSEQUENCES.  MD 21 DRONE CRASH

The structural issues of joined craft are real, but such vehicles have already been demonstrated.  Until now these have not discovered the aerodynamic harmony of the wings in proximity that we see.  HILLS is unique and covered by three patents to date.  We have a system that offers advantages which we can analyze and quantify.  This is the Boeing patent which was issued after our own:

Connected reusable stages (center component and top) make up the SLV, which is baselined for air-launch on Scaled Composites' WhiteKnightTwo carrier aircraft. Credit: Seth Jaworski/Thomas Smith Boeing

THE BOEING CONCEPT MISSES THE LIFT / DRAG ADVANTAGES AND CANNOT REUSE THE ORBITER

(and needs  four stages counting the White Knight 2 aircraft)

Our STAGING KEY INTERMEDIATE PROTOTYPE (SKIP) is a clean simple solution.  We may be able to deliver a larger version of this to orbit in three stages instead of four, and ALL stages will be fully reusable; no expendable losses.  Then manned operations are also viable, safer, and affordable.

P5.25 3 VIEW

EXODUS AEROSPACE “SKIP” PROTOTYPE P5; 15 FT. SPAN x 18 FT. LONG

The golden age of aviation appeared in the great depression years.  A few wealthy visionaries like Howard Hughes helped to fuel a futuristic industry in dark times.  They inspired hope for the future and actually delivered technology needed for an unexpected war.  I hope we can create a model for the golden age of space, even as the DC-3 was for that earlier age.  We are already hearing from investment interests for future manned space applications.  Horizontal operations offer clear advantages for reusable economies, comfort, and safety in manned space flight.  Space was our inspiration and is still a crowning target for this technology.  No orbital spacecraft have ever been reusable except the winged space shuttle and the X-37.  Wings can offer full reusability that no vertical launch has ever delivered.  Our willingness to grow in affordable steps can deliver all of this promise for the future.

We want investors in each prototype step to expect customer markets for every vehicle we build and test.  There is no reason to miss opportunities to pay bills and build company finances in every step.  We may have to license the patent to others when we don’t want too much diversification.  We will need wisdom to manage our choices when there are threats in the business world.  We have identified some dedicated people to guide the company and consultants to solve technology issues.  We may find more assets as we step out on the first projects.  It would seem selfish to deny investors a chance to create a path to a future when aero and space are reunited.

Exodus Aerospace

We’re leaving the planet…one stage at a time

905 15th Street

Wheatland, WY

82201

Cell phone 307-331-6448

diluther@exodusaerospace.com

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2 Comments
  1. It seems like the logical way to do reusable winged space craft rather than the shuttle. However Elon musk`s way is still a logical to do it especially since there are no runways on the Moon or Mars

    • Our objective is only earth orbit. Spacex has crashed a few while the X-37 has a perfect safety record on reentry. We go with wings, the “Wright Stuff”. Actually if we use thrusters wee too suggested a semi-vertical landing out of ground effect, so perhaps we won’t need runways for the orbiter either.

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