One of the key points of the project is safety, for that the first must for NEXTH design has been to use for the most stressed structural components only aluminum and titanium alloys, and carbon fiber only for aesthetic secondary parts, in order to not compromise any way the capability of the aircraft to fly and land safely whatever happen.
The wing, result of eng. Morelli design and of the experimental development, is equipped with a high performance profile, product of an important work made in testing and improving its behavior within the German LTF – UL certification program.
The tapered plant wing, with a 3-spar strong structure, is hinged on the fuselage to avoid the presence of shear stresses, while the main spar of both wings, when connected together, become a complete full-length beam, free to flex as necessary with no fixed shearing points.
The wing / fuselage connection is a delicate point, through which important stresses are transmitted between the two components, subjecting the wing spars with high shearing forces that can compromise its integrity.
The NEXTH technical solution of the hinged connection, having no vertical fxing bolts, avoids dangerous shearing forces transforming the reactions into a rotary movement, with the main spars free to flex rotating around the connecting hinges, welded safely on the frame, reaching free from vertical constraints a higher resistance, +9 -4.5 G.
Being safety one of the key points of Nexth project, the frst must has been to use only aluminum and titanium alloys for the stressed structural components, and carbon fiber only for aesthetic secondary parts, to ensure as much as possible the capability of the aircraft to fly and land safety whatever happens.
As well known, aluminum alloys have a plastic-elastic type breakage, they follow an elastic model under stress stretching out, and when they reach the limit they don’t break ( like instead carbon fiber does) but follow , before the break, a plastic non-reversible deformation, visible at every pre flight inspection, contrary to what carbon fiber components do when collapse with a fragile type break, suddenly without any warning.
After a stress, a gust, a turbulence, a hard landing, the aluminum deforms and warns before breaking in a visible way, for a wider safety margin with no question.
SAFESTART is a simple engine start button device introduced by AERO&TECH in order to prevent the accidentally starting of the engine and consequent take off with the fuel valve in the closed position, the rotating tap covers the engine start button so that it cannot be started without having first opened the fuel valve.
The COOLING SYSTEM air inlet with the radiator exclusive and sports design characterizes NEXTH with a greater efficiency.
The engine is able to operate around 100°C stable (also with 40°C OAT and long taxing time) for a greater safety and longevity of engine components, no longer thermally stressed, again cool design meets better functionality.
SAFETY FUEL TANK , single, with a capacity of 50 lt (130 lt on request), is strictly made with no-explosion technology and FIA standards , with non overflowing valve (on request) , and well placed in the most safe aircraft zone, away from possible external points of collision.
RETRACTABLE GEAR
Fixed or retractable, however solid without compromise in the structure with legs made of 5 grade titanium / ultrasonic certified 7075 T6 CNC machined, designed to reach higher absorption and mechanical strength
The gear system is designed in order to make it possible at all times to update the same gear legs with the retractable pneumatic system, also available as an aftermarket service.
THE RESCUE BALLISTIC PARACHUTE SYSTEM is characterized by an opening led cap and stretching elastic shock-absorbing extensions up to 50000 N for each of the 4 ropes, hidden in the fuselage skin, and it is one of the few systems with a guaranteed minimum opening safety height.
SEATS WITH HEADRESTS against the underrated risk of whiplash and of floating objects on the hatbox, and with 4/5 point seat belts, securely fixed directly to the fuselage frame, in order to make safer a possible emergency landing.
The PROJECT is led by CS VLA and FAR23 (where applicable) obtaining at the first inspection the German Permit to Fly under LTF-UL certification process, developing also towards American LSA for a standard of absolute safety and reliability, without compromises.
Experienced aeronautical / mechanical craftsmen and technicians come together in a synergy of skills for the successful construction of an innovative aircraft, respecting the indisputable top solidity and reliability of traditional metal construction with special steel frame and metal wings, using carbon components only for light no structural elements.
The wing leading edge made from a single piece is an evidence of AERO&TECH high professional and technological level, to improve solidity and safety, meeting customers’ needs under a regime of constant and total quality control.
AERO&TECH is the first company to introduce the special high-performance steel tubes from Formula 1, ensured by the application of no destructive weld resistance tests with x-ray and penetrating liquids.
AERO&TECH is the first company to introduce the special high-performance steel tubes from Formula 1, ensured by the application of no destructive weld resistance tests with x-ray and penetrating liquids. Skilled craftsman works in inert welding atmosphere for a full closed safety cell that protects the cabin from impact absorbing the impact energy with its elastic deformation. For that the fuselage and engine mount frame have each single tube in communication with the others allowing the pressure test inspection on the frame to avoid the presence of fractures.
The aeronautical philosophy to prevent however the problem with high attention to details, is the basic principle of each technical choice about components and materials with certified characteristics, from the tested ultrasonic aluminum 7075 T6 used for spars and full machined mechanics, to the most little component as rivets, reaching in this way the result of an incredible best ratio weight/resistance.
All the production is made in Italy in a single workshop, for a total quality control, respecting in this way the mechanical manufacturing tradition of the real “Made in Italy”. The construction is conducted under certified ISO9001 quality system, for sheet metal processing and special mechanical works, that ensures product quality and company reliability.
One of the most delicate points in the design of an aircraft is the connection wing – fuselage, through which important stresses are transmitted between the two components, subjecting the wing spars with high shearing forces that can compromise its integrity. For this reason NEXTH adopts the technical solution of the hinged connection, with the main spars and the wing free to rotate on connection hinges welded safely of the frame.
AERO&TECH concept, having no vertical fixing bolts between wing and fuselage, as instead usually adopted by other common constructions, , allows to transform the dangerous shearing forces into rotary movement eliminating the vertical constraint, in that way the wing reaches consequently great and considerably higher performances of resistance, +9 -4.5 G with a maximum weight of the wing of only 57 kg.
The wing, excellent result of eng. Morelli design and experimental development, is equipped with a high performance profile, result of an important work made in testing and improving the wing behavior through the certification program. The tapered plant wing, with a strong 3-spar structure configuration, is hinged on the fuselage in order to avoid the presence of shear stresses, while the two main spars, when connected together, become a single beam, complete full-length, in this way free to flex as necessary with no fix shearing points. Moreover, to increase safety:
The wing profile is extremely flexible and versatile allowing high speed performance with simple and safe low stall speed behavior, and moreover:
The middle wing and the backward shifted position gives in NEXTH two aircraft visibilities in one, joining together the one of a high and low wing. This increases safety with a wider visibility, suitable to discover other traffics, for a greater flight pleasure and for a more efficient activity of territory surveillance and pilot training.
