cycleops612
10 kW
https://en.wikipedia.org/wiki/Electromagnetic_Aircraft_Launch_System
45 tonnes to 240kph on a carrier deck.
U would think it a boon for commercial jets eventually
u would think remoter, hi altitude airports (plateaus?) on HSRail to population centers would help save fuel too - denver is very high as i recall. Most are now at sea level~. Saves planes climbing/descending maybe 4000m.
The piece doesnt add up tho. If all they have to do is spin up flywheels with the power available (a nuclear carrier would have over a million HP from the reactors and turbines), less electric power on the nimitz class e.g. just means slower launch intervals, or modest upgrades to power gen capacity.
Further, "using the rotors of four disk alternators; the system then releases that energy (up to 484 MJ) in 2–3 seconds.[4] Each rotor delivers up to 121 MJ (34 kWh) from 6400 rpm (approximately one gasoline gallon equivalent) and can be recharged within 45 seconds of a launch" 484MJ TOTAL launch power (132kw) is not a lot of power. a corolla is about 80kw, let alone a turbine connected to a jet motor, which one assumes they have lying around (& fuel), & dont weigh much .
A know it all friend fell about laughing when i postulated flywheels as huge poor mans "capacitors" - v fast charge storage - yet here we see exactly that, perhaps heavyish in conventional perceptions, but that depends how fast u spin the mass. F1 motors and hard drives do 20k rpm, so 6400 rpm sounds modest.
Note the even number of rotors. I suspect they are counter rotating pairs to counteract any torque effect/vibrations from the spinning mass.
Westinghouse were suggesting it to the navy in 1946 - cool company.
The steam method of launch byw relies on "mats" which lift as the hook passes & fall to seal of the steam it after it has passed. not efficient as we see here, and from the escaping steam.
45 tonnes to 240kph on a carrier deck.
U would think it a boon for commercial jets eventually
u would think remoter, hi altitude airports (plateaus?) on HSRail to population centers would help save fuel too - denver is very high as i recall. Most are now at sea level~. Saves planes climbing/descending maybe 4000m.
The piece doesnt add up tho. If all they have to do is spin up flywheels with the power available (a nuclear carrier would have over a million HP from the reactors and turbines), less electric power on the nimitz class e.g. just means slower launch intervals, or modest upgrades to power gen capacity.
Further, "using the rotors of four disk alternators; the system then releases that energy (up to 484 MJ) in 2–3 seconds.[4] Each rotor delivers up to 121 MJ (34 kWh) from 6400 rpm (approximately one gasoline gallon equivalent) and can be recharged within 45 seconds of a launch" 484MJ TOTAL launch power (132kw) is not a lot of power. a corolla is about 80kw, let alone a turbine connected to a jet motor, which one assumes they have lying around (& fuel), & dont weigh much .
A know it all friend fell about laughing when i postulated flywheels as huge poor mans "capacitors" - v fast charge storage - yet here we see exactly that, perhaps heavyish in conventional perceptions, but that depends how fast u spin the mass. F1 motors and hard drives do 20k rpm, so 6400 rpm sounds modest.
Note the even number of rotors. I suspect they are counter rotating pairs to counteract any torque effect/vibrations from the spinning mass.
Westinghouse were suggesting it to the navy in 1946 - cool company.
The steam method of launch byw relies on "mats" which lift as the hook passes & fall to seal of the steam it after it has passed. not efficient as we see here, and from the escaping steam.