According to foreign media reports, Jaunt Air Mobility's Reduced Rotor Operating Speed Aircraft (hereinafter referred to as ROSA) The design of this evtol air taxi seems to be a strange helicopter / aircraft mixture, and it may be people have seen. All evtol design is the safest, in addition there is a very great advantage, that is, it does not require special certification.
This is a huge news for emerging 3D commuter markets, because it can make this thing in the starting cost of this thing, and the two main obstacles that EVTOL designers face to design this kind of travel tool are safety. And certification.
Jaunt Air Mobility is a start-up company established in 2018, but it is not until the public's attention is caused. The company's ROSA has a huge shape, it looks a bit clumsy, the top rotor is like a helicopter, the wing is large and wide - there is a small aircraft so big. Obviously, it doesn't seem to be as cool like Lilium, Joby or Skai, but its flight ability is very good.
ROSA is flying by huge, slow top rotor, which does not require tail pads to balance the torque of the main rotor because there are four large electric pillars on the wing. These devices allow the aircraft to not fall into tail in the hover, and then provide forward thrust to make the aircraft to rerupt the cruise speed. Once it reaches a certain speed, the top rotor will completely unload to achieve low resistance, high efficiency flight, because the wing will result in power.
It is understood that ROSA is based on CarterCopter design, and Jaunt has obtained all the right to use Carter Aviation Slow Rotor Compound. The four Personal Air Vehicle demonstrations of Carter have completed more than 1,000 take-off flights and 100 hours of test flight, which reached 214 Mph (344km / h), with a height of 18,000 feet.
As for security, ROSA can safely land with automatic rotation like a helicopter. If all the motivation disappears, the top rotor will still provide sufficient strength, so it can slow and controllable the aircraft in both a high or air velocity. This is definitely a huge advantage.
In terms of certification, it conforms to an existing category, ie "rotor propeller aircraft", which allows it to obtain certification according to the requirements of the FAA Part 29 rotor. Although the United States has not been certified for several decades, no matter whether it is aviation engineer or regulatory agency itself, it is very understandable. Jaunt specifically designed an easy-to-authenticated aircraft, which fundamentally reduced the cost of putting this aircraft into a comprehensive commercial use.
The slow top rotor can make the plane become more quiet and especially when they are cruising. Noise reduction will be an important goal in this field, especially the flight team to begin to transport people in urban areas. Jaunt expects the noise level of this aircraft to be 50% to 66% lower than ordinary helicopters or fixed-wing aircraft.
Another key benefit of ROSA design is its low periodic maintenance requirements. The top rotor is not connected to the bearing or pitch connection like a helicopter. Jaunt said that they are using elastic materials, this simple, clean, non-bearing design should be able to have a long time interval between inspection requirements, which will help further reduce operational costs.
Rosa Another skill is LevelFly technology, which controls the entire tower of the main rotor is tilted so that there is no matter how many passengers on the machine, no matter where they are sitting, the cabin can be easily balanced. This also helps maintain the comfort of the cabin during the transition between vertical and wing flying, in other vertical take-off and landing design, complex phases may involve some quite uncomfortable tilting.
It is understood that Jaunt is operated by some very serious rigorous engineers, CEO Kaydon Stanzione is a senior engineer of Boeing, an expert consultant of the US Department of Defense Vtol Aircraft Project, US / NATO Test Leaders and engineers, continuous inventors of multiple disciplines, success Entrepreneurs and writers, CTO Martin Peryea served as Vice President of Triumph Aerospace Structures, Vice President of Bell Helicopter Company, and Chairman and chief engineer of Bell 525 Product Safety Commission. Therefore, the company's flying products have not lanes the core aviation industry knowledge.
This company said they are self-funded and have enough funds to enter the next stage. It is reported that it is one of the partners selected by the Uber Elevate project. In order to achieve this goal, Jaunt has established a partnership with BAUSTESTEMS, TRIUMPH AEROSPACE STRUCTURES and HONEYWELL.
Of course, this is still a lot of unknown things such as how much battery life, but it is expected that its aircraft will get certification in 2023, and will begin production and commercialization around 2025.
Editor in charge: WV, read full text
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