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> It claims a total possible weight reduction on an A320 from 2155kg to 1560kg...An A320 weighs 42,000kg empty Does this seem odd? The fuselage only accounts f
by dmurray 8y ago
> It claims a total possible weight reduction on an A320 from 2155kg to 1560kg...An A320 weighs 42,000kg empty
Does this seem odd? The fuselage only accounts for 5% of the empty weight of the plane. I checked your sources and that's what I see too, but it still sounds low. Where does the rest of the weight go? The engines weigh about 4600 kg total. Seats weigh 35 kg x 200 or about 7000 kg. That leaves 28,000 kg. Wings? Landing gear?
- deleted 8y ago[deleted]
- innocenat 8y agoWings can easily take up 20-30% of total plane weight. Then there's a whole flight electronics and hydraulics, other interior (like ceiling, A/C), APU, tail, landing gears, etc.
- dmurray 8y agoSo wings could be as much as 14,000 kg (7 times the weight of the fuselage) and all those other bits total 14,000 together? I'm on a plane now and it's still hard to believe that each wing (without the engine) could be 3 times the weight of the body of the plane. But I guess it must be true. Thanks for the colour.
- manigandham 8y agoThat is the Operating Empty Weight: https://en.wikipedia.org/wiki/Operating_empty_weight https://en.wikipedia.org/wiki/Operating_empty_weight The operating empty weight (OEW) is the sum of the manufacturer's empty weight (MEW), standard items (SI), and operator items (OI). Basically the whole plane, interior outfit and crew needed for full operations, excluding the actual fuel and payload.
- forapurpose 8y agoFuel (all numbers approximate): An A320 carries around 25,000 L of fuel.[0] Jet fuel weighs ~0.81 kg/L (it varies by temperature).[1][2] 25,000 L * 0.81 kg/L = 20,250 kg = 44,550 lbs. [0] https://en.wikipedia.org/wiki/Airbus_A320_family https://en.wikipedia.org/wiki/Airbus_A320_family [1] https://en.wikipedia.org/wiki/Jet_fuel https://en.wikipedia.org/wiki/Jet_fuel [2] https://aviation.stackexchange.com/questions/48785/how-is-fuel-weight-calculated https://aviation.stackexchange.com/questions/48785/how-is-fu...
- dmurray 8y agoSurely fuel is specifically not included in the plane's "empty weight".
- forapurpose 8y agoI misread your comment. I would expect that fuel would be excluded from 'empty weight'.