Fuselage Takeoff and Landing System for Aircraft
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Solution Overview
Problem
Current aircraft takeoff and landing systems rely heavily on landing apparatuses, which increase aircraft weight, contribute to accidents, and consume significant fuel, with 70-80% of accidents occurring during these phases.
Innovation Solution
A fuselage takeoff and landing system where the landing apparatus is removed, allowing the aircraft to directly contact a virtual runway surface, utilizing a rail catcher assembly and shock absorption units to maintain stability and reduce weight, and a takeoff and landing guide apparatus with rollers and elevation units to manage speed and position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a landing apparatus is installed to enable takeoff and landing, then the aircraft can perform safe takeoff and landing operations, but the aircraft weight increases
Solution Approach 1:
The patent removes the traditional landing apparatus (landing gear) from the aircraft system. Instead of having a heavy mechanical landing gear, the invention uses the fuselage itself as the landing surface, extracting the unnecessary component while maintaining the essential function of safe landing through direct fuselage contact with the runway surface.
Solution Approach 2:
The fuselage is designed to serve multiple functions: it provides structural support for flight, acts as the landing surface for takeoff and landing operations, and eliminates the need for separate landing gear. This multi-functionality reduces overall aircraft weight while maintaining safety.
2Reliability
If a heavy landing apparatus is used to sustain large loads during takeoff and landing, then safety is enhanced, but the aircraft weight increases significantly
Solution Approach 1:
The invention extracts and removes the heavy landing apparatus that was previously used to sustain large loads. The load sustaining function is transferred to the fuselage structure itself, which is already designed to bear the aircraft's weight during flight, thereby eliminating the need for additional heavy landing gear while maintaining load capacity.
3Productivity
If traditional engine thrust alone is used for takeoff, then the aircraft can achieve takeoff, but fuel consumption increases
Solution Approach 1:
The invention merges the takeoff function with the landing apparatus function. The same system that enables safe landing (the fuselage contact with runway surface) also provides assistance during takeoff, combining two functions into one system and improving overall energy efficiency.
Solution Approach 2:
The runway surface itself acts as an intermediary that provides friction-based assistance during takeoff. Instead of relying solely on engine thrust, the runway surface mediates the takeoff process by providing additional propulsive force through friction between the fuselage and the runway, thereby reducing fuel consumption.
4Weight of moving object
If a landing apparatus is removed to reduce aircraft weight, then economic effects are enhanced, but the complexity of takeoff and landing operations increases
Solution Approach 1:
The fuselage is designed to serve multiple functions: it provides structural support for flight, acts as the landing surface for takeoff and landing operations, and eliminates the need for separate landing gear. This multi-functionality reduces overall aircraft weight while maintaining safety.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system reduces aircraft weight, decreases fuel consumption, enhances safety by minimizing accidents, and reduces runway length, thereby improving economic efficiency in the aviation industry.
Implementation Method 1
a rail catcher assembly docked with a guide rail provided on the virtual runway surface to support the aircraft fuselage to maintain the center line of movement
Implementation Method 2
a shock absorption unit provided at the aircraft fuselage to absorb a collision force due to a contact with the virtual runway surface
Data Source
AI summary
The aircraft capable of takeoff/landing via the fuselage thereof and the takeoff/landing system of the aircraft according to the present invention are configured such that multiple takeoff/landing rollers are arranged in a sliding direction such that the aircraft fuselage having a landing surface formed at the bottom thereof can safely land and slide in a sliding direction, thus enabling the aircraft fuselage to contact a running surface and takeoff/land without separate landing gear. Thus, not only can the weight of the aircraft be reduced, but the fuel consumption of the aircraft can be reduced as well, the useful space in the aircraft can be broadened, the length of the runway can be shortened due to the frictional force generated by the takeoff/landing device, and the safety during the takeoff/landing of the aircraft can be improved.