Flying cars is one of the sectors of aviation that has been creating more companies in recent years. The mobility of large cities, such as Madrid or Barcelona in Spain, needs a rethinking of what can be take advantage of all the technology learned from electric cars and drones.

High capacity batteries and flight systems associated with unmanned aircraft are the pillars on which all an industry that promises to emerge in a few years. Just when the current developments are closing and the aviation authorities of each country begin to give the green light to the first experimental flights.

Among all that ecosystem of companies and projects, there is always one that attracts attention. The last of them to appear is far from the concepts that we are used to seeing in presentations. No arms full of propellers or bizarre designs, rather a clean design that uses a technology very similar to bladeless fans.

And the engines?

Jetoptera’s main technological claim are, without a doubt, its engines. As we pointed out before, they resort to a technology devised by Dyson many years ago where the propellers are not visible. The operation involves installing an air generator inside the fuselage that produces an airflow that is multiplied by the ‘airplane wing’ design‘in the form of a circumference.

Jetoptera J-2000

Jetoptera

Omicrono

With a small fan it is achieved, thanks to the geometry of this circular wing, increase airflow up to 16 times for Dyson fan models. Making it come out with more pressure if we compare it with a traditional blade fan. Using a small air generator translates into reduced energy needs, something very positive for the autonomy of the system.

But feeding a fan with air is not the same as generating enough thrust to make an airplane take off. Jetoptera’s scheme is based on creating a primary air stream through a compressor, something that have failed to achieve with currently available battery technology.

They would need a density of around 1,500 Wh / kg and currently – in the best of cases – 260 Wh / kg are achieved, according to New Atlas. For this reason they currently use a internal gas-fired system capable of generating 75 kW in the shortest model and up to 1,200 in the most powerful.

Its engine technology “improves propulsion efficiency by more than 10% while reduces fuel consumption by more than 50% compared to small-size turbojets “, point out from Jetoptera. In addition, the system is 30% lighter compared to the turbofans (those of traditional aircraft) and “significantly” reduces mechanical complexity.

Military flying car

This Seattle-based company has a portfolio of 7 vehicle prototypes that use the same engine technology. Four of them are designed to take off and land vertically while the remaining three conform to the traditional longitudinal take-off operation.

The three models that attract the most attention are J-2000, J-4000 and one called High-speed. The first two are exactly the same from an aesthetic point of view, varying only the potential of the motors and the load that each one can withstand.

All the flying cars of Jetoptera

All the flying cars of Jetoptera

Jetoptera

Omicrono

Both have a top speed of 320 kilometers per hour, a maximum altitude of 4,500 meters and the ability to take off and land vertically. The J-2000 has a maximum weight of 900 kilograms (2,000 pounds) while that of the J-4000 is 1,800 (4,000 pounds). As can be seen from the computer designs, the forward engines can be hidden inside the fuselage of the aircraft as speed increases to eliminate downforce.

For the High-speed, Jetoptera has varied the design of the J-2000 and J-4000 achieving approximately the same weight and doubling both speed and range, which in this last aircraft manages to exceed 640 kilometers.

The intention of the company is supply this type of vehicle to the military market. In January 2020, Jetoptera and Honeywell announced an agreement by which they joined forces in the development of this technology.

Jetoptera J-2000

Jetoptera J-2000

Jetoptera

Omicrono

“Honeywell is working with Jetoptera to drive a revolutionary propulsion system that will change the dynamics of flight operations“Reads the statement. Honeywell is one of the world’s leading aviation companies and will use its technology to generate the compressed air to power Jetoptera’s engines.

“The FPS [como se llama el sistema de propulsión de Jetoptera] will replace traditional powertrains and it should make it possible to build aircraft that are faster, safer and less detectable. “The goal of the alliance of both companies is to build aircraft that can be used to transport troops and cargo. Jetoptera has already won a couple of minor contracts from the Air Force. from the United States to study the sound profile of its system and its lift potential.

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