Lilium Jet

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Lilium Jet
Lilium Jet cabin demonstrator
Role eVTOL
National origin Germany
Manufacturer Lilium GmbH
Status Under development

The Lilium Jet is a prototype German electric vertical take-off and landing (eVTOL) electrically powered airplane designed by Lilium GmbH.[1] A seven-seat production version is planned.[2]

History

Initial design studies included forward-folding wings, so that the aircraft could be piloted as a VTOL and recharge in only few hours from a standard 240 V electrical outlet. A first half-scale demonstrator, Falcon, flew in 2015. The

first flight of the two-seat Eagle full size prototype was on 20 April 2017 at the Mindelheim-Mattsies airfield, Bavaria, Germany.[3]

Unmanned flight testing of the five-seat Lilium Jet took place at

flight control systems
.

The first prototype was destroyed by fire during maintenance on 27 February 2020. A second partially-constructed prototype was undamaged.[6] A further unfinished prototype was abandoned, and work begun on a seven-seat version.[7]

Design

The Lilium Jet uses multiple relatively small

disc loading and power-delivery requirements significantly exceeding the leading competitive eVTOL designs.[10]

Lilium invested in Ionblox for its silicon-dominant anode battery technology, which it believes offers uniquely high energy and power density (12C with 3.8 kW/kG at 50% charge and 3.0 kW/kG at 30%) needed for hover and take-off phases, even at low charge levels.[11]

The target range is 280 km (150 nmi). Its 36 electric ducted fans are powered by a 1 MW (1,300 hp) lithium-ion battery; less than 200 hp (150 kW) is required to cruise.[12]

Specifications

Data from Lilium GmbH / Electric VTOL News by the Vertical Flight Society[13]

General characteristics

  • Capacity: 2-seater: 2 passengers, 200 kg (440 lb), 5-seater: 5 passengers (flown unmanned), 7-seater: 1 pilot, 6 passengers
  • Empty weight: 970 lb (440 kg) 5-seater: 1,300 kg (2,900 lb), 7-seater: 3,100 kg (6,800 lb)
  • Max takeoff weight: 1,411 lb (640 kg)
  • Powerplant: 36 × Vertical Electric 320 kW total installed power

Performance

  • Maximum speed: 190 mph (300 km/h, 160 kn)
  • Cruise speed: 170 mph (280 km/h, 150 kn)
  • Range: 190 mi (300 km, 160 nmi)

Usage

The Lilium GmbH plans to found an air taxi service for urban air mobility and Advanced Air Mobility with the Lilium Jet.[14] The company expects that pilots will be needed for around 10 years until autonomous flights can take over.[12]

Award

In October 2019 the Lilium five-seater Jet received a Red Dot Award: Design Concept for “Best of the Best”.[15]

See also

Related development

Related lists

References

  1. ^ Hodgetts, Rob (25 April 2017). "Successful test flight brings Lilium electric air taxis closer to reality". CNN.
  2. ^ "Lilium announces intention to list on Nasdaq through a merger with Qell Acquisition Corp., and reveals development of its 7-Seater electric vertical take-off and landing jet | Lilium N.V." ir.lilium.com. Retrieved 21 April 2022.
  3. ^ Andrew J. Hawkins (6 April 2017). "Watch this all-electric 'flying car' take its first test flight in Germany". theverge. Retrieved 30 April 2019.
  4. ^ "Lilium unveils five-seater air taxi prototype after a successful maiden flight for its latest jet". techcrunch. 16 May 2019.
  5. ^ "Five seater self-flying air taxi unveiled". BBC. 16 May 2019.
  6. ^ "Investigation launched as Lilium Jet prototype is destroyed by fire". FlightGlobal. 2 March 2020. Retrieved 2 March 2020.
  7. ^ "Lilium's New Course: On Verge of Going Public, It's Working on a Bigger Air Taxi. Can It Deliver?". Forbes.
  8. ^ Wiegand, Daniel (2014). "Vertical take-off aircraft". patents.google.com. Retrieved 16 January 2022.
  9. ^ Lilium (6 August 2018). "Simplicity was our Most Complicated Goal". lilium. Retrieved 30 April 2019.
  10. ^ Technology behind Lilium Jet lilium.com Archived 2023-03-08 at the Wayback Machine
  11. ^ Blain, Loz (13 February 2023). "The extraordinary batteries Lilium will use for its odd eVTOL approach". New Atlas. Retrieved 13 February 2023.
  12. ^ a b Graham Warwick, ed. (28 October 2019). "The Week In Technology, Oct. 28-Nov. 1, 2019". Aviation Week & Space Technology.
  13. ^ "Lilium Jet". eVtol news. 15 April 2017.
  14. ^ Maija Palmer (19 February 2019). "Lilium's flying taxi service: clear for takeoff?". sifted.eu. Archived from the original on 11 April 2020. Retrieved 18 October 2018.
  15. ^ "Lilium jet awarded prestigious 'Best of the Best' Red Dot design award". Robotics & Automation News. 30 July 2019. Retrieved 8 January 2020.

External links

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