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The Boeing Passenger Air Vehicle is a venture originally headed by John Langford, who's company Aurora Flight Sciences was acquired by Boeing in November of 2017 (AFS is now a subsidiary of Boeing's NeXt technology ventures arm). The Boeing PAV is similar in design to the Kitty Hawk Cora, as it utilizes vertical lift propellors for takeoff and landing and transitions to forward flight using a single pusher propellor. The first flight of the PAV was on January 23rd, 2019.

Aircraft Type: Winged VTOL

Powerplant: All-electric

Range: 50 miles

Top Speed: Undisclosed

Propeller Configuration: 8 lifting rotors, 1 pusher propeller

Passenger/Payload Capacity: Two-seater

Autonomy Level: Autonomous

Dimensions: 30 feet wingspan, 28ft length

Other Information:

Infrastructure:

Aurora Flight Sciences is unique - it is a medium size company, with around 470 employees, and is now a Boeing subsidiary under the Boeing NeXt technology ventures arm. Furthermore, Aurora has completed a number of other theoretical and physical design projects, including autonomous, novel flight control, and novel configuration - all components that require mastery and experience in to successfully design a competitive eVTOL. The first test of the full scale prototype was on January 23rd, 2019 in Manassa, VA.

The Ehang AAV is the largest autonomous aerial vehicle that Ehang, a Chinese company with a large wealth of experience in drone manufacturing, has designed and flown to date. Ehang mostly specializes in smaller drone technologies, but has scaled their experience and product with the AAV. EHang has conducted successful flight tests in extreme environments, including a typhoon, and has hosted numerous public demonstration flights. The company is quite popular in China and is rapidly spreading their global influence, having conducted demonstration flights in Asia, the middle east, Europe, and North America to date.

Aircraft Type: Wingless VTOL

Powerplant: All-Electric

Range: 22 miles with max payload

Top Speed: 80 mph

Propeller Configuration: 16 lift/thrust rotors (8 dual rotors)

Passenger/Payload Capacity: 2 Passengers, or 485 lbs total payload

Autonomy Level: Autonomous

Dimensions: 18' 4" wingspan, 5' 9" length

Other Information: 

Flight Endurance: 25min (est)

Empty Weight: 793 lbs

Cruising altitude: 1600 ft (AGL)

Charging Time: 1 hr

Max Takeoff Weight: 1322 lbs

Materials:

Main frame: Reinforced composite material with carbon fiber and epoxy

Other components: aerial aluminum alloy

Interior:

Seat Depth: 1' 3"

Seatback Height: 2' 10"

Seatback angle: 95 degrees

Storage capacity: 18-inch backpack

Ehang boasts more drone building experience than most other eVTOL manufacturers, and seemed to have benefited from approaching the eVTOL design process by scaling up their previous drone projects, designing an autonomous vehicle from the start, and conducting rigorous testing early and often. The company has rapidly filled a large product line and advanced drone technology in that time frame, despite being a relative newcomer to the aerospace industry when compared with other larger OEM's. Their strength in relationships with with Chinese local and national government officials and the CAAC has aided their progress, including the facilitation of a pilot program that offers limited aerial mobility operations in select cities along coastal China. Given the huge emerging market for on-demand transportation in China, and Asia in general, EHang has great potential to make a huge impact on the way people move. Furthermore, the recent explosion of ride-sharing services like Uber and Grab in Asia will aid in shifting public sentiment toward accepting on-demand transportation, regardless of mode.