Patentdescription
Description of the
aircraft emergency system EWISS
E
mergency
WI
ngs
S
eperation
S ystem
The basic concept is, that
has not been previously considered is the
relationship between the
survival chances of passengers and crew during
an emergency landing and
the wings remaining connected to the body of the aircraft.
All systems up to now
concentrate on slowing down the spread of fire ( highly
inflammable upholstery,
fuel, with Explosions reducer, etc ) or the reduction of impact
shock during an emergency
landing on land or water the (concern
with the damage
to passengers, through the
danger of materials used within the body of the
aircraft ( e.g. sharp
edges)).
EWISS does
not replace any currently used system but instead supplements
it, in a hitherto unused method during an emergency landing
on land or water,
or during a takeoff termination.
EWISS
separates the dangerous wings and engines from the aircraft fuselage
and thus increases the
survival chances of those on board.
General working
practice and system:
The system is conceived
for both initial construction and for subsequent installation
for all types of aircraft,
especially for those with wings abbuting the lower part of
the aircraft fuselage.
Middle of the wing and
wing over the fuselage are not strictly considered but are also
suitable for EWISS. The
use of the system for this type of aircraft would need to
be
tested.
The aircraft needs to be fitted out with the following equipment:.
the fuselage to a
stand still)
Method:
At the outset of an
emergency as defined by the flight handbook. The pilot begins
an emergency approach and
pumps all the fuel from any middle fuselage tanks
into the wings. The crew
makes as many approaches as are deemed necessary
to arrive at a sufficient
braking surface (in their opinion).
At a height dependant on
aircraft type (between 30 and 50 feet). The wing separator
is then activated and the
fuselage bullet like continues to travel forward while
the wings separate.
Dependant on trim the fuselage will land level. It is braked
with a braking device (possibly
a plough like braking system). When the fuselage
comes to rest the
evacuation process is effected.
The method must be
optimized by the manufacturer and operator and this is thus to
be seen as the basis for
the system. In all systems based on this method ( as long
as they do not already
exist) this patent is applied.
EWISS assumes
an inescapable
fire danger when landing on land or water.
EWISS also makes possible a takeoff termination above the speed of the point
of
no return during situations that would lead to a total
aircraft loss with the
accompanying saving
of life ( This must be determined by the operator).
In the following the
accident is considered in individual circumstances with examples
of individual accidents
and the result that would occur if EWISS is simulated.:
- Emergency
landing outside routine circumstances ( e.g. with a fire on board, undercarriage failure etc.)
- Emergency
landing on water
3.
Take off termination
First)
The
pilot determines that the plane is no longer land-able under normal
circumstances
and weighs up the potential
fire risk; this is in most cases high
(
except where there is a fuel deficiency ). The pilot flies the aircraft to the
designated
emergency
landing strip ( e.g. a runway
or landing field). When the necessary
height
determined by EWISS has been reached it is deployed. The wings are
separated,
and the braking system
brings the fuselage to a stand still at a safe
distance
from the wings. The subsequent impact of the fuselage is absorbed
by
the deformation of the lower fuselage loading area.
Example
: The Sioux City crash of a DC 10.
The
pilot flew the aircraft to the airport after a total failure of the hydraulics
in order to
land
it. But because the machine was difficult to handle, it went out of control when
touching
down and overturned catching fire. If EWISS had been installed and
had
been activated shortly before touch down, the fuselage would not have turned
over
and there would have been no fire in the fuselage. EWISS would have
reduced
the
number of deaths and possibly only light injuries ( from the crash) would have
been
the resultant damage.
Second)
The
pilot determines that he must land on water and reduces height to one compliant
with
the EWISS. The wings are separated and the fuselage sets down in the
water
like
a water ski and glides further. Subsequently those on board can be evacuated.
Example:
The emergency
landing of a twin jet machine in front of the beach of a
Caribbean island.
The
pilot allowed the port wing to drop down sufficiently to catch the water
and
caused
the machine to summersault with the resultant loss of life. If EWISS had
been
in use the summersault would have been prevented as the fuselage would
have
glided to rest in the direction of the beach.
Third
)
The
pilot determines after reaching take off speed that the aircraft should not
lift.
The
normal procedure is for the pilot to take off and do a circuit to land again;
otherwise
he would continue over the end of the runway and crash with the probable
resultant
explosion of full or partially full tanks. With EWISS the wings together
with
the fuel can be separated and the passengers will be saved.
Example:
The Concorde crash in Paris.
Even
though the fire in the engine was noticed at take off the pilot had to
start,
because
he had reached the point of no return and this lead to the catastrophe.
With
EWISS if the wings and engines together with the fire had been separated
from
the fuselage, the fuselage would have slide away from the danger zone.
The
number of dead would have been reduced or possibly eliminated..
Actual
additional applications:
During a high jacking or suicide
high jacking:
During
a high jacking it could be determined if it was possible to prevent this
by
rendering the airplane inoperative with EWISS, thus removing the purpose
of
the high jacking.
Suicide
high jackings may be prevented by operating EWISS over unpopulated
areas
( This could have prevented the type of attack on the 11th September provided
someone
on board had had the courage to operate the system) ( the
announcement
of the installation of such systems would also reduce the interest
of
terrorists in participating in such actions).
Application:
EWISS
uses
existing technology from
within the aerospace industry. For example
the
destruction of aircraft canopies prior to pilot ejection in military jets. The
techniques
currently
used in building destruction provide additional information. These techniques
merely
have to be applied and not newly developed. This reduces the cost and risk
of
product development..
Because
of low cost system components and minimal changes in aircraft construction
an
disproportional increase in safety will be achieved..
As
90 % of all accidents in air traffic result in deaths during start or landing
the use
of
EWISS would be an objective as well as subjective (important after 11
September)
increase
in safety for crew and passengers.
This
increase in safety should in the medium term also affect insurance premiums
which
could cover the amortization of the investment in such systems. The
improvement
in safety image amongst the
broader population would also be
advantageous
to the aircraft industry.
