User:Jared.semik/sandbox

= Eternium Archangel = The Eternium Archangel is an in development long range multi-role liquid hydrogen fueled all electric aircraft powered by four 900kW Eternium superconductive electric motors and high specific thrust propulsor systems. The Archangel is the first aircraft in development from the aircraft development firm Eternium Aerospace, incorporated in 2020. Eternium envisions the Archangel to be used in a multitude of roles from fire suppression, military, cargo and passenger roles without the use of fossil fuels with a range of 3200 nautical miles (5926km). Several variants are planned including manned, semi-autonomous and autonomous (unmanned).

Design
The blended wing body design lends high aerodynamic efficiency to optimize the thrust output of the four 900kW internal electric motors. The Archangel includes an inverted v-tail design to simplify the flight control system from the original tailless design which has an added benefit of positive roll turn coordination and crosswind nose-up attitude. The design is built on a modular architecture allowing for multiple role capability. Archangel carries 8900 gal of liquid hydrogen and is powered by the NASA Closed Strayton power cell which replaces the expensive PEM fuel cell with a higher energy density/cheaper electric powerplant.

General characteristics

 * Crew: 2 (crewed variant), zero (autonomous), one (semi-autonomous using Eternium Groundlink)
 * Capacity: 30 passengers
 * Max payload: 7,000lbs (3,175kg)
 * Wingspan: 105ft (32m)
 * Length: 42ft (12.8m)
 * Height: 21ft (6.4m)
 * Max T/O weight: 32,000lbs (14,514kg)
 * Max payload: 7,000lbs (3,175kg)
 * Powerplant: 4 x Eternium 900kW superconductive electric propulsor
 * Fuel Capacity: 8,900 gal (33,690L) Liquid Hydrogen
 * Power system: 3.6MW + 25kWh supplemental battery array + 111kW GaAs solar array (optional range extension and ground maintenance)

Performance

 * Maximum speed: 480kn (552 mph, 888.2km/h) at 35,000ft (10,688m)
 * Cruise Speed: 400kn (460mph, 740km/h)
 * Range: 3,200nmi (3,682mi, 5,226km)
 * Service ceiling: 35,000ft (10,668m)