High-speed Regional Transport
High-speed regional transport
Author: David Judbarovski, systems engineering, principle inventor
judbarovski@gmail.com
Abstract
Flying vehicle being very compact, with very simple and cheap design, it is evaluated here below. Some higher energy consume is compensated by both much lower CAPEX and maintenance expenditures, short runway.
I see only application niche for it to be regional transport about 50 ton weight, 600 km/h, 45,000 kW, the both maximum, 30,000 kW averaged, 1600 km run in 3.10 hours, with 15 ton payload. 22 ton fuel.
It comprise a fuselage equipped by mover with turbine engine, and short hollow tubes in parallel to flight direction and bent downward at back side, so oncoming air flow creates lift force like air jets that possible with passive turbine compensating a weight of the said transport.
Economics of it was evaluated by classical formulas aren’t needed in detailed explain.
Really,
50 ton = 500,000 (N) = 0.4 (kg/m3) * 45 (m2) * 167 (m/s) ^2 ,
~45,000 (kW) = 0.4 (kg/m3 * 45 (m2) * 0.5 * 167 (m/s)^3 / 1000 = 42,000 kW + relatively negligible for fuselage
4 kWh = 1 kg fuel = 10 kWh * 0.4 (energy efficiency 40%) ,
22,000 (kg fuel) = 88,000 kWh.
330 km/h take-off at 210 m runway,
15 (ton, payload) = 50 (ton) – 12 (ton, empty weight) – 22 (ton, fuel)
15 ton payload can be or war load, or 160 seats/passengers.
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