Painted in broad strokes, Archer’s Midnight is a single-pilot, five-passenger eVTOL aircraft evolved from an antecedent Archer design known as Maker, from which Midnight inherited a flight-architecture comprising 12 electric-motor/rotor assemblies: six five-blade tilt-rotors for forward and vertical flight, and six two-blade fixed-rotors for vertical flight exclusively. The entirety of the aforementioned motor/rotor assemblies are affixed by pylons to a single, high-wing of relatively high aspect ratio. The six tilt-rotor assemblies are positioned forward of said wing, while the six fixed-rotor assemblies are positioned aft of such.
Midnight’s 12 electric motors weigh a miserly 55-pounds apiece and have peak individual power outputs of 125-kilowatts (167-horsepower). The powerplants’ power-to-weight ratio is approximately 3.04-horsepower/pound.
The motors are supplied electrical power by a sextet of proprietary eight-hundred-volt battery-packs comprising cylindrical, type 2170 lithium-ion battery cells provided by the Taiwanese battery manufacturer Molicel. Each of the six battery-packs supplies two motor/rotor assemblies and are interconnected in such a way that load may be varied and individual battery-packs isolated. In addition to providing redundancy in the event of motor or battery failure, the described Distributed Electric Propulsion (DEP) scheme facilitates reductions in power requirements of nearly twenty-percent at the battery cell level—compared to conventional high-voltage battery designs.
So motivated, Midnight attains and advertised cruise speed of 130-knots, a single-charge range of 17 to 43-nautical-miles—dependent upon aircraft loading and flight conditions—and a cruising altitude of two-thousand feet MSL.
Midnight’s ovular-cross-section fuselage sits atop a fixed, tricycle undercarriage; the machine’s empennage is of a V-configuration evocative of Beechcraft’s S-35 Bonanza.
Loaded to its maximum takeoff weight, Midnight tips the scales at seven-thousand-pounds. The aircraft’s maximum payload is nebulously cited as “one-thousand-plus-pounds.”
Archer’s strategy for Midnight’s deployment is predicated upon an Urban Air Mobility (UAM) model comprising twenty-mile back-to-back routes conducted in rapid succession. As Midnight’s design targets a one-hundred-mile-per-charge range, numerous such legs could be flown by a single aircraft.
For initial UAM operations, Archer will rely on existing infrastructure, such as the Manhattan heliport, which anchors a route to and from Newark; and Vertiport Chicago, a facility that will presently serve as the hub for an air-taxi route between the Midwestern metropolis’s famed downtown Loop and O’Hare International Airport (ORD).
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