Aircraft

Split-wing aircraft gets new propulsion system

Split-wing aircraft gets new propulsion system
Horizon Aircraft's Cavorite X7 hybrid eVTOL now features two larger vertical lift fans in its front canards instead of four smaller ones, along with other updates
Horizon Aircraft's Cavorite X7 hybrid eVTOL now features two larger vertical lift fans in its front canards instead of four smaller ones, along with other updates
View 4 Images
The canards and tails have been reprofiled in order lower drag, thus improving energy efficiency and stability while cruising
1/4
The canards and tails have been reprofiled in order lower drag, thus improving energy efficiency and stability while cruising
A patented mechanism allows the wing surfaces to slide open for vertical lift from the fans, and slide closed as the X7 transitions to forward fixed-wing flight
2/4
A patented mechanism allows the wing surfaces to slide open for vertical lift from the fans, and slide closed as the X7 transitions to forward fixed-wing flight
The X7 is 11.6 m long (38 ft) and has a 15-m (50-ft) wingspan
3/4
The X7 is 11.6 m long (38 ft) and has a 15-m (50-ft) wingspan
Horizon Aircraft's Cavorite X7 hybrid eVTOL now features two larger vertical lift fans in its front canards instead of four smaller ones, along with other updates
4/4
Horizon Aircraft's Cavorite X7 hybrid eVTOL now features two larger vertical lift fans in its front canards instead of four smaller ones, along with other updates
View gallery - 4 images

Horizon Aircraft's Cavorite X7 already sported a radical design, even within the wild world of hybrid eVTOLs. That design has now been updated, however, for enhanced aerodynamics, cruising performance, and flight safety.

We first heard about Canadian company Horizon Aircraft back in 2021, when it unveiled the X7's predecessor, the Cavorite X5.

Like the X7, it utilized a unique split-wing design to take-off and land vertically like a helicopter. In the case of the X7, that design placed five battery-powered vertical lift fans in each of the two wings, along with two smaller fans in each of two canards at the nose (for a total of 14 fans).

Once the aircraft gained altitude, a gas-powered pusher propeller in the rear took over for forward flight, with the wings and canards now providing lift just like they would on a fixed-wing aircraft – they were assisted by aerodynamic covers that slid up over the fans.

A patented mechanism allows the wing surfaces to slide open for vertical lift from the fans, and slide closed as the X7 transitions to forward fixed-wing flight
A patented mechanism allows the wing surfaces to slide open for vertical lift from the fans, and slide closed as the X7 transitions to forward fixed-wing flight

It's a clever design, but Horizon figured it could do even better by reducing the number of fans to 12.

Last Wednesday (Jan. 21/26), the company announced an update to the design, which will partially involve replacing the four smaller canard fans with just two fans (one in each canard) that are the same size as those in the wings. This change will improve manufacturing efficiency, increase performance and simplify maintenance, reportedly without compromising safety margins.

The X7 is 11.6 m long (38 ft) and has a 15-m (50-ft) wingspan
The X7 is 11.6 m long (38 ft) and has a 15-m (50-ft) wingspan

The canards and tails have also been reprofiled in order lower drag, thus improving energy efficiency and stability while cruising.

Finally, the cabin has been slightly extended and its windows have been redesigned, in order to increase legroom and improve sightlines.

Basic specs for the production version of the Cavorite X7 remain the same. Plans call for the six-passenger (plus pilot) aircraft to be capable of a 450-km/h (280-mph) cruising speed with an impressive 800-km (497-mile) range with reserves. We're told that production should commence by 2030.

Is our hybrid electric aircraft another air taxi?

Source: Horizon Aircraft

View gallery - 4 images
10 comments
10 comments
Towerman
The Le now shifts to cover the fans in forward flight. That's clever !
Techutante
I wonder how it handles turbulence?
Giovanni Fima
It looks great, l hope is not a fair weather aircraft and how about a ballistic parachute.
Trylon
@Towerman, what are you talking about? The split wing design was always supposed to do that. Watch the earlier video.
Towerman
@Trylon, Indeed you are totally right, My bad ! Sorry i never fully watched the original video ! The whole wing opens and closes Brilliant !
@Techutante Multirotors usually handle turbulance very well, since the EVTOL aspect of this craft utilizes multirotor tech for slow movement and vertical landing i would say it would handle it very well, not sure how airplane mode would handle, we'll have to wait and see.
darkcook
The concept looks good. The open/close mechanisms seem like they would add a fair bit of weight--it would be interesting to know the empty weight and the useful load of this aircraft. It would also be interesting to see what they picked for the petrol pusher engine: something conventional, or something experimental.
Curious that they went with a swept forward main wing--those are not the best from a structural perspective. I'm not sure how this aircraft handles stalls or high angle-of-attack flight, but a swept forward wing, unless EXTREMELY stiff, usually cause some less than desirable flight characteristic at high AOA when the wing starts flexing.
Aermaco
This is near the ideal for fans in VTOL with the required efficient cruise mileage. The range distance of its reach then falls on battery capacity, and when H2 fuel cells are added, it's going to be really useful.
The only negative is moving parts failures, and i assume if moving panels get stuck, the computer will keep the failure on the opposite wing to remain in balanced control.
When crossing the pond, it will need an inflatable emergency flotation weight added, reducing payload by that amount.
WONKY KLERKY
ref Ye Vid : ref Stream Timing ~ 0.18--0.24 min/secs: I'm not the brightest tool in the box, BUT, I'd recommend highly that the front of the wing rear closing edge doesn't lap over the frontal panel rear edge. ie. Presenting an upstanding edge to the air stream could get a chap thrown out of the Airfix Modellers Club.
Global
I can see why the forward swept wings are needed to provide lift regarding the center of gravity of the craft, but run a 3D model with a swept back design mounted more forward .
JasonDavidSteel
I'm not an aero engineer, pilot or any of that, but I love the concept so much more than ALL the rest of the eVTOLS, except maybe the Bellwether... Solid state batteries may make this thing greener, we shall see....