o_190b92ptg1anf1eaka0f1i7s1foba.pdf

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Innovative Lösungsansätze
Innovative solutions
Equal cost of ownership, including depreciation, interest and insurance cost
Apart from the batteries, the Ce-Liner‘s cost of ownership roughly equals
that of a conventionally powered aircraft at a comparable technology level.
Additional cost of ownership (Batteries)
Acquisition, depreciation, insurance, interest
and maintenance of batteries cause significant
costs for Ce-Liner operators.
Additional environmental charges
The conventionally powered reference
aircraft is subject to environmental fees
that the Ce-Liner is expected to avoid due
to its locally emission-free operation.
Two per cent lower energy cost (500 nautical mile mission)
Projections of future electricity and kerosene prices hint at slightly
lower energy costs for Ce-Liner operations, but price volatility for
both energy carriers remains a critical factor.
Aircraft cost per block hour
Ce-Liner
Reference aircraft
Ce-Liner
(percentages of
cost categories)
19%
10%
2%
38%
Energy cost
US$ 2,561 US$ 2,613 (+2%)
Airport and navigation charges
US$ 1,783 (+21%) US$ 1,478
Direct maintenance cost
US$ 366 US$ 380 (+4%)
Crew cost
US$ 1,259 (+4%) US$ 1,205
38%
6%
10%
18%
Reference aircraft
(percentages of
cost categories)
5%
26%
Cost of ownership (excl. batteries)
US$ 694 US$ 694
Batteries Environm. charges
US$ 160
US$ 400
22%
6%
Summary
US$ 6,821 (+0.8%) US$ 6,770
Nearly equal DOC for the Ce-Liner
Higher airport and navigation charges (150 passengers, 75 per cent load factor)
Applying today‘s airport charges to electrically powered aircraft, their significantly higher
take-off and maximum landing weights would result in higher landing and navigation charges.
Lower direct maintenance cost (Engine and airframe)
On the one hand, superconducting motors require significantly less scheduled and unscheduled maintenance than conventional
turbofan engines. On the other hand, the Ce-Liner‘s airframe requires more maintenance due to the higher aircraft weight.
Higher crew cost (Short-haul, full-service carrier payment level)
As crews receive payments in regard to weight of operated aircraft (larger/heavier aircraft = more responsibility = higher wages),
the comparably heavy Ce-Liner would have disadvantages in terms of crew cost.
Direkter Kostenvergleich (Tabelle) und Anteile einzelner Kategorien an den
gesamten Betriebskosten des vollelektrischen Ce-Liner-Konzeptes aus dem
Bauhaus Luftfahrt (linkes Diagramm) und eines Referenzflugzeuges mit
weiterentwickeltem Turbofan-Antrieb (rechtes Diagramm): Aus den nur um
0,8 Prozent höheren Betriebskosten des Ce-Liners lässt sich erahnen, dass elektrisch
angetriebene Verkehrsflugzeuge auf einem vergleichbaren Kostenniveau betrieben
werden könnten wie ihre konventionell angetriebenen Gegenstücke.
Direct cost comparison (table) as well as specific cost breakdowns for the
fully electric Ce-Liner concept envisioned by Bauhaus Luftfahrt (left chart)
and a reference aircraft powered by advanced turbofan engines (right chart):
With its overall Direct Operating Cost (DOC) only 0.8 per cent higher than for a
conventionally powered reference aircraft, it becomes apparent that an electrically
powered transport aircraft could be operated at a neutral cost level.
Bauhaus Luftfahrt Neue Wege. 55