Safe commercial airplane with separable cabins

SAFE COMMERCIAL AIRPLANE (NASER ZIAEI)
Safe commercial airplane with separable
cabins
Naser Ziaei
Provide description:
(A) Title of the invention idea:
Safe commercial airplane with separable cabins
(B) technical background of the invention idea:
Engineering in a general sense, electrical, mechanical, aviation safety, aviation, aircraft
(C) The technical problems and explain the objectives of the invention:
The fall of aircraft annual irreparable human and financial costs imposed on societies. Despite
many advances in aviation and navigation in aircraft protection systems unfortunately we are still
seeing many air accidents. This shows the inevitability of accidents on the fly. More costs spent to
improve the safety of aircraft navigation systems and radar systems for aircraft and improve
engines and improve emergency exit systems and etc, But with use of all these systems still
witnessing many incidents that show the structure have weakness fuselage in certain
circumstances, Although the systems be more complex and have more expert pilot. Occurrence of
disaster is Chain set of factors is not complete and up the chain get complete, accident does not
happen. In other words if we want to prevent disasters, we should avoid forming a ring or rings of
the chain of this events. And the final loop flight control system can be an emergency rescue system
that can satisfy the passengers and aircraft crews safely to the surface. As well as emergency
landings in urban areas did not harm the buildings and people. One of the effects is the
psychological fear of flying, air travel for humans is not common and that is why a common
phenomenon and causes of mental disorders in the body. The problem with stress and fear of flying
that may occur alone or together before and during the trip.
Most of the people who live in industrialized countries have experienced a fear of flying, which
may reverse the effects of their professional and personal lives has created. In the US alone 25
million people been suffering a variety of strokes and fear of flying and they are usually in two
categories; The first category are those who are concerned about the plane crash and are afraid of
it. The second category of people who are concerned about terrorist attacks in the confined space
of the passenger cabin. Such a sense of air travel reduces the willingness of people to use a large
percentage of the aircraft. Therefore, increasing aircraft safety and reduce aircraft accidents will
increase people's willingness to airline travel.
Extensive studies show that the main causes of fatal air accidents and incidents passenger aircraft
in order of importance are as follows: (1) human factors, -2 airworthiness of the aircraft, 3 - acts

of terrorism, 4 - defects in providing air traffic control services, 5 - natural factors such as weather
conditions.
(D) Previous technical knowledge:
Increase of air accident statistics in the current year and the high human and financial cost of
airplane crashes, Makes the extra effort for safety aviation industry as well as planes are in the sky.
With regard to the incident on the plane, such as explosion, fire, engine failure or other airplane
accident aircraft at a high altitude rescue of passengers and crew on board is almost impossible.
But what can be done? Modern navigation systems and pilot proficiency flight at that moment how
much can be useful, When half of the aircraft by a missile hit one of the wings of the aircraft is
destroyed or disconnected? Certainly aircraft in such circumstances will fall. Some airplanes may
also fall in the water, in which case most of the fate of the Malaysian Boeing 777-2H6ER Malaysia
Airlines plane with 239 people having been killed. Or may be so far away crash site that the number
of people who have been saved and in the Storm waves at sea or from the cold and lose their lives.
As well as any other part of the body of the several million dollars aircraft and all aircraft will be
unused or will be lost or the depth of the sea is irreparable human and financial costs impose many
communities.
In reference [3] WO2001074659A1 idea proposed and registered the loading and unloading of
passengers and goods from one side of the plane in the shortest possible time finish, And on the
other hand followed by the Differentiation cabins can be separated in an emergency on a plane and
can landed by parachute. A problem that the scheme is that this scheme can’t be used for large
commercial aircraft cabins and It has not been welcomed in small aircraft Because of fire damage
to part of the cabin or where this damage
and the fire spread to all parts of the cabin and endanger the lives of passengers The be big these
cabin and be as a one piece it causing problems with balance and rotation And stresses that in
terms of the inclement weather, The system does not cover the cockpit and pilots must come out
of his cabin and in its short time of crisis and reach in the passenger cabin, The remaining part of
the fuselage that released is large and if that cabin falls on a city surface bring serious damage,
Opening parachutes cabin at the same time in high altitude and the high speed at which the aircraft
is moving the twisting umbrellas and umbrellas to each other and when needed can’t do their job
properly and the cabin passengers will fall.
Figure 5 shows how separate the cabin in the scheme. The other idea is called ‘An aircraft with a
detachable passenger escape cabin and an aircraft with airbags pose and recorded On the one
hand loading and unloading passengers and cargo deliver in the shortest time possible and on the
other hand followed by the mobile cabin of the aircraft can be separated in an emergency and by
parachutes that it has landing on the surface. The problem of this plan is that like the previous plan,
this plan can’t be used for large commercial aircraft cabins. And only be used for small aircraft
and patrol airplane. In another project the company Caps, parachute is used in recreational small
aircraft [2]. In this design, the aircraft in the event of an accident, including aircraft and engine
failure during the fall, The pilot's decision or your computer system calculates and release the
parachute, As shown in Figure (6) and thus the aircraft and the passengers, even in the mountains
could experience a safer landing, But this plan only on small aircraft from two to four passenger

be implemented. And also because of the connection of the engine and wings to the fuselage and
since most accidents occurred to this category of aircraft, are aircraft engine fire. Or collision with
other aircraft the fire and smoke from it quickly spread into the cabin and endanger the lives of
passengers. As well as the much larger commercial aircraft due to the weight and size this plan is
not applicable, In the plan, "Yu Gao," The Chinese in Geneva 2012 International Exhibition of
Invention offers the whole fuselage in the wings, the tail, Front of the plane and middle of cockpit
put the parachute, but this plan has many bugs that have been impossible to implement it. Including
that connecting too much parachute to the aircraft in most cases is problematic, Like putting a
parachute in the wings also most aircraft are not normal and do not fall completely. But in most
cases or collision has been done or fire occurred or explosion or damage to the part of the cabin in
which case it may be separate that section from other parts.
While lack of parachute in that sector will be cause imbalance and also that numbers of parachute
can’t be in a position where speed and vortex forces passing around the cabin opened, Because the
knot occur and interface cables parachute will rupture, There are many other cases in this plan that
its implementation is not practical that we ignore them. The Iranian plan as "a difference of
pressure in the system to prevent plane crash." the problem which will impractical that scheme
contrary to the claims its owner has declared many time one hundred percent of the rescue aircrafts,
Is that these pressure systems have been installed on aircraft wings and floors, However, in the
event of an accident to an aircraft wing or tail or part of the cockpit the system is experiencing
technical difficulties and can’t be controlled aircraft at that altitude and in critical condition, The
system with such a structure would not be able to save the lives of passengers airlines that have
been burned and the development of fire and smoke from it to prevent the rest of the cabin.
Meanwhile, some aircraft accidents with more acute problems such as the destruction of part of
the body or explosion. A plan that would resolve these shortcomings and to secure air travel is
necessary, the proposal will require. With the implementation of early separation of this problem
will not exist and with separate cabin, also prevents the spread of fire and smoke to other parts
come and smaller rooms have better balance and can be retained in the heights above and in critical
condition.
(E) Provide solutions to technical problems with accurate and sufficient description the
invention:
My plan is the body of the passenger cabin and cargo aircraft which can separate of the specific
locations. And all sectors (small cabins) in addition communicating with each other have the ability
to take in an emergency or accident separated from each other each section independently as a
small passenger cabin can safely reach the ground. An integrated main cabin aircraft in specific
areas classified somehow docks each of these areas after assembly and connector shell of the
aircraft, and integrated to form the overall body of aircraft. And in place of between independent
frames, mechanical connections placed the separate chassis connected to each other with these. So
that in time of need by electro-mechanical or pneumatic system to quickly frames and the small
cabins can be separated, Also nearby cabin doors between the corridors are automatically closed
when separated, The doors are insulated with crust and during the free fall cabin air is not drawn
by low air pressure of outside and when it have a landing on the surface of the sea water does not
penetrate Inside. To connect communication and control cables and hydraulic pipes which be
pulled across the aircraft fuselage in the adjoining all the connections between the two frames are

used by certain mechanical and electrical connectors. That during separation cabins all wires and
pipes can separate quickly and easily and cabs independently of each other and diverge experience
free fall. Like shape (7, 8) an integrated cabin and be sectioned cockpit of the airliner's passenger
aircraft are showing, This cabin can include several rows of seats on the plane or in that part of the
cockpit and flight engineers be a one of the early separation cabins. and the back of the cockpit is
generally part of A class be another divisible rooms and the back row of seats which are economy
and Include of many seats become to one or more other separate rooms according to need and
depending on the type of aircraft and the number of seats.
As shown in (9 to 12) that separating steps of cabins and parachute are showing. Separate cabins
in an emergency and when separated, experience a free fall (This falling of separate cabins can be
done by less acceleration with other systems) and then the parachute for the cabins which located
on top and in the end of the cab will open step by step and the cabins sit on the surface In this way
rear parachutes of the cabin are open and cabins are vertically like vertical cylindrical tube which
are on the way down by parachutes, This makes wind and air pressure effects much less in the
segregated cabin in free fall and eddy currents of air don't cause dangerous turns on the passenger
cabins and as well as aircraft front and back parachutes be able to function well and don't node to
each other, Then at a certain height closer to the surface front parachutes will open and returns the
cabins horizontally. Parachutes must have a tolerance for stretching about three times their own
connected cabin which in an emergency predicted added number of passengers in the next door
cabin also been included, Therefore, the rear parachutes which are opened first and all weight of
the separate room is on it, must have higher strength tolerance, Shown in Figure (12).
Approaching the ground or water surface cabins air cushions which are covered periodically
circular with a diameter around the cabin and also due to aircraft position and conditions (Such as
landing without opening wheels or landing in a place other than the runway at the airport) Can be
open integrated under and around the cabin and the cabin comes down on it. Cushions such as
those used on the space shuttle reach the level in a timely manner, very noticeable reduces hit
resulting from the cab when it comes to surface and not harm the passengers trauma of landing.
Figure 9 shows the airliner body is an integrated cabin and passenger seats and etc. It is drawn,
Figure 10 shows the aircraft at the time of the segmentation where the wings and tail and main
cabin of an identifiable location are segmented, Figure (11) shows separate cabins of airplanes
landing with their own parachutes, And shape (13) showing one separated cabin from the airplane
when it landed on the water surface with its cushions.
At this stage the aircraft cabin is divided into four smaller cabins, This segmentation is performed
in time of manufacture of aircraft and all electrical connections and mechanical connectors are
special accomplished when necessary they can be quickly separated. in this plane The body of the
aircraft cabin divided into several parts and during manufacturing the aircraft separation of chassis
and body parts will be carried out. Consider one of these separately sections cabins, this section
includes doors and side and walls between two parts. And at the top of the cabins are located
parachutes, cables for connecting to the parachutes are made of special materials and fibers that
have many more stretch tolerance than other cables. Cabin cushions as well as a ring around the
cabins periodically covered and a number of special pads which have higher resistance against
friction are integrated under and around cabins. This bag inflating (Airbags) such as those used in
space shuttles which will act when necessary and cabins can sits safe on the ground or in the water.

Inside the cabin the seats are so that passengers can be vertical when the cabin get horizontal to
the ground and this sits placed on the horizon line. In this case, the angulation of the cabin, will be
perpendicular the passenger seat. Of course in this sector and to improve the performance seat
passengers we also be used advanced systems and intelligent electromechanical and the purpose
of doing this is prevention of falling passengers and prevent of a great pressure due to vertical
cabin and maintaining the safety and comfort the travelers. To have a better view of the invention,
consider an incident plane where the rear of the cabin near the tail of the aircraft hit with a rocket,
or something collides with this part and destroy it shown (1), In Currently airplane radar devices
only shows in aircraft approaching missile or other aircraft and commercial aircraft couldn't run
away from this situation and just waiting to be dealt. Such as the recent plane crash Boeing 777-
2H6ER Malaysia Airlines with 298 people died, With the explosion of one part of airplane,
airframe apart from each other and disintegrate like Malaysia plane crash in Ukraine that none of
the 17 which no one of passengers survived. Consider another incident, the aircraft to quickly
reduce height and encounters to the sea surface, in which case of course the cabin has collapsed to
the bottom of the sea will sink and restore parts of the deep sea becomes impossible, Such as the
recent incident Malaysia Airlines plane with 239 people killed in near the 777-2H6Er Boeing
Indian Ocean crashed.
Now consider the first incident (an incident plane where the rear of the cabin near the tail) with an
aircraft cabin separator system is implemented on it. As soon as warning rocket collides to aircraft,
to detect intelligent system navigation and detection pilot, separating system act quickly and all
connectors and connecting cabins get separate and all sectors with pump high-pressure pneumatic
or any other safe system separated from each other faster, In this process, the wings with more
pressure separated from the body so tension vortex which caused by the falling of the wings and
air passing over them and causing spinning them in the air do not collisions to the separated
passengers cabins in the sky. And then all detachable cabins part are separated and each cabin
independently will experience a free fall and strong missile radar sensors may ultimately be able
to hit the only one of the separate cabins and the rest of the cabins can survive the explosion. And
during the free fall, each cabins due to the intelligently systems diagnose, parachutes will acts and
the cabin slowly closer to the surface And while padding the side and underside of the cabins active
and provides safe landing for this part of the cabin and passengers and their load.
And friction under the fuselage with the runway or in places other than the runway that usually is
not flat places can cause fires, detachable tail and even slither plane on the surface Such as China
plane crash in southern Okinawa, Japan on 20 August 2007 crashed Air France flight 358 Figure
(2) Air_France_Flight_358_cropped, or emergency landing on the ground non-airport possibility
wheels getting stuck in the stone or sink in the mud and the risk of imbalance planes, There is a
risk of imbalance aircraft and slither and reversal, Such as Figure (3) Asiana Airlines San Francisco
International Airport. But with this system by the pilot or system diagnosis all cushions bumpers
underside of the aircraft open and the aircraft will land on its pads and the risk of fire and slither
the plane on the runway disappears and specific emergency situations will not be created for
passengers and crew. And the cost of repairs is only including replacement aircraft pads and not
have another human and financial costs. Even if the fall be in the sea. Each cabins can stay on the
water surface while the passengers are sitting on their seats up when help arrives and it’s not
required to jumping out of the water passengers which is turbulent and often very difficult to find
and rescue survivors of the accident will be very difficult.

(F) Explanation the Shapes:
In explaining the shapes that have come in the Appendix, Figure (1) shows the fall of an airliner
due to the hit of a rocket or explosive. Figure 2 shows Air_France_Flight_358_cropped Air France
flight 358 in which emergency landing due to the severity trauma caused by the friction body with
hard ground of aircraft suffered a severe burns and destruction of fuselage and passengers in the
cabin were killed. Figure 3 shows aircraft slither on his stomach and occurred extreme fire in the
plane 'Asiana Airlines San Francisco International Airport’ as you can see the fire is severe so that
fewer passengers could have survived from this incident.
Shape (1): fall of an airliner due to the hit of a rocket or explosive.
Shape (2): Air France flight 358 in which emergency landing due to the severity trauma

Shape(3): aircraft slither on his stomach and occurred extreme fire in the plane 'Asiana Airlines
San Francisco International Airport’.
Figure (4) in [3], the idea has been proposed from one side of the loading and unloading of
passengers and cargo to the aircraft possible in the shortest time and bring the other side followed
by the moving fuselage be able separated and landing in an emergency time. The plan also on the
mentioned reasons in part (d) can’t be implemented in a practical manner. Figure (5) shows how
to separate the cabin in this plan. Figure (6) is a plan of the Caps aircraft company and they used
parachute in their own small recreational aircraft, this method is not suitable when the plane caught
fire.
Shape (4)

Shape(5)
Shape (6)
Figure (7) shows the large passenger airplane cabin in which rows of passengers, seats and cockpit
are integrated and before activate the separator system. Figure (8) shows large passenger aircraft
cabin which divided into several separate rooms, in this way you can see the commercial aircraft
body divided to specific areas, Cockpit, section behind the cockpit is also another cabin, the
ordinary passengers section divided into two parts. The first part consists of eleven rows of seats
and the second part includes twelve rows of passenger seats. Figure (9) shows big airliner with its
interior and seating and cockpit and engines before the actuate separator system of cabin can be
seen that the aircraft has a piece and continuous of the body.

Shape (7): the large passenger airplane cabin
Shape (8): Large passenger aircraft cabin which divided into several separate rooms.

Shape (9): airliner with its interior and seating and cockpit and engines before the actuate
separator system
Figure (10) shows the airliner is separating the cab, wings, tail and dividing the main cabin to small
independent cabins and as you can see the main body of the aircraft separated from specified points
and each separate cabins independently landing, Tail and rear wings (Vertical Stabilizer, Rudder
and Elevator) a section, airplanes wings with attached engines, cockpit, and ordinary passengers
cabin divided into two parts. Figure (11) shows separate and detached cabin in the sky and landing
with special parachute, at the first the rear parachutes of cabin will be open and the cabin vertically
like a vertical cylindrical tube that is by parachutes is landing, Then at a certain height closer to
the surface where flow of air is more stable and cabins tensions largely reduced the front cabins
parachutes will be open and cabin returns horizontally. Figure (12) show one of the cabins
independent in free fall step by step, Figure (13) is also one of the separated cabins landing in the
water with its cushions and how to float on the water surface shows, by this pads could sit on the
dry land, in the time which plane forced to make an emergency landing in other than the airport
place can easily place on this pads for landing and there is no other risk of slither, fire and break
parts of the airplane body and do not need to be separate.

Shape (10): airliner is separating the cabin.
Shape (11): separate and detached cabin in the sky and landing with special parachute

Shape (12): one of the cabins independent in free fall step by step.
Shape (13): one of the separated cabins landing in the water with its cushions.

(G) The benefits of the invention;
If lives of tens and hundreds of traveling passengers by aircraft be saved which is safer than any
other ways of traveling made much safer, air traveling request will be much more from
manufacture of aircraft company which give more attention to protect the lives and safety of their
passengers, hereby also increased a lot more profit for manufacture of aircraft companies and
flights agencies. The main advantage of dividing the cabin is in the event of an attack or air crash
because before hitting the rocket to the body, parts of the car are separated and each as fast as had
and the force of gravity will move towards the ground and rocket may eventually hit only be one
target, and the rest of the cabins could reach to the earth, Even if the damage is too severe, for
example, front of the airplane completely destroyed separate cabins system act and do separating,
in this case passengers can safely reach the ground.
Another advantage of the system when the plane crashed in the ocean and the sea, given that two-
thirds of the planet's oceans and seas has formed, probability of a plane crash in water is high.
Bearing in mind that planes usually with damage fall in to the water and this and this causes go
under water faster and may take up to thousands of meters under water and save the passengers
and even taking out the fuselage be impossible. Wings and tail which consists of motor and
aviation fuel are also have its own parachutes, so in case of crashes in urban areas the damage to
these areas are not entered and components of airplane reach the ground safely and financial cost
will be less, In this system even an event such as the terrorist attack of September eleven in
America happened could not happen again, and the system automatically check status of airplane,
act quickly and separating the cabin and fuselage made the hijacked aircraft would not be able to
hit the city and buildings even if it is the will of the pilot and hijackers. At times which the plane
forced to make an emergency landing in places other than the airport. For example, emptied fuel
or the wheels of the cabin not open and fuselage don't need to separate, And only with the opening
of padding underneath and the side simultaneously, airplane can place it easily on this pad to
landing and other risk of slither, fire and breaking parts of the body will not exist and also there is
no need to separating the cabin.
(H) Executive method for the application of the idea;
ne method of implementing this idea is that body commercial aircraft with respect to its internal
layout and weight distribution is divided into sections. Compressed air pneumatic system be
installed at the points of connection cabins (such as automobile airbag mechanism or eject system
in fighter aircrafts) to activate fast by very high speed and high power when the cabin must to be
separate. Then, by fitting mechanical parts and skeletons (the chassis) carefully to be connected
and formation a unified body so that ability to separate easily in an emergency, and all cables and
mechanical, electrical and electromechanical, hydraulic connectors be detachable from each other
by special connectors, The connectors can be separated easily when necessary and then in the floor

and around the cabins padding of safety airbags be installed material of this padding should be
prepared to tolerate stretching and scratching and high temperature caused by occurs friction and
also to be made of fireproof material and be insulation humidity. The distal and proximal section
of each of the cabins also a special rescue parachute is installed. Emergency separation system
should be such that at the time required by detect critical situations or detected by the system and
the pilot to act quickly and accurately perform separating the cabins. And while the communication
door the cabins from each other, quickly closed and insulated cabin, such as large rescue capsules,
quickly separate the connectors and the cabins as well separated and each cabin independently
without connection to the adjacent cabin experience a free fall, and by detecting the speed and
acceleration and altitude the cabins end parachute of the cabins be opened, passengers seat are in
a manner that could be remain horizontal when cabin is vertical perpendicular to the ground and
placed skyline by reducing the height of certain extent, airbags cushions with front parachutes of
each cabin get open, and the cabin slowly and safely sit on surface. Rescues system realizes its
geographical satellite of each cabin act and notification location of the cabin and another
information. Also when of landing on the runway without opening wheels or landing on uneven
surfaces body and cabin of airplane will remain united and only by opening the cushion lands
comfortably on this cushions, this function is defined for scheduling system. And the system steps
will perform automatically and by using data of the features that receive from its own accurate
sensors and variety of conditions for which it will be defined.
List of references :
1- /http://fa.wikipedia.org/wiki
2- http://cirrusaircraft.com/
3- https://www.google.com/patents/WO2001074659A1?cl=en

Safe commercial airplane with separable cabins

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