| dbo:abstract |
In aerospace engineering, payload fraction is a common term used to characterize the efficiency of a particular design. Payload fraction is calculated by dividing the weight of the payload by the takeoff weight of aircraft. Fuel represents a considerable amount of the overall takeoff weight, and for shorter trips it is quite common to load less fuel in order to carry a lighter load. For this reason the useful load fraction calculates a similar number, but based on the combined weight of the payload and fuel together. Propeller-driven airliners had useful load fractions on the order of 25–35%. Modern jet airliners have considerably higher useful load fractions, on the order of 45–55%. For spacecraft the payload fraction is often less than 1%, while the useful load fraction is perhaps 90%. In this case the useful load fraction is not a useful term, because spacecraft typically cannot reach orbit without a full fuel load. For this reason the related term propellant mass fraction, is used instead. However, if the latter is large, the payload can only be small. (en) 유상 하중비는 페이로드의 제작과 엔지니어링에 사용되는 공식이다. 공식은 로켓의 총 질량을 페이로드의 질량으로 나눈 값이다. 여기서 나눌 때 연료도 합쳐서 공식의 변수에 수를 대입하여 공식을 구한다. (ko) |
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309249 (xsd:integer) |
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1506 (xsd:nonNegativeInteger) |
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1041308111 (xsd:integer) |
| dbo:wikiPageWikiLink |
dbc:Astrodynamics dbr:Payload dbr:Orbit dbr:Aircraft dbr:Airliner dbr:Spacecraft dbc:Aerospace_engineering dbr:Aerospace_engineering dbr:Jet_airliner dbr:Tsiolkovsky_rocket_equation dbr:Propellant_mass_fraction |
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dbt:Payload_fraction_table dbt:More_citations_needed dbt:Reflist dbt:Astrodynamics |
| dct:subject |
dbc:Astrodynamics dbc:Aerospace_engineering |
| gold:hypernym |
dbr:Term |
| rdfs:comment |
유상 하중비는 페이로드의 제작과 엔지니어링에 사용되는 공식이다. 공식은 로켓의 총 질량을 페이로드의 질량으로 나눈 값이다. 여기서 나눌 때 연료도 합쳐서 공식의 변수에 수를 대입하여 공식을 구한다. (ko) In aerospace engineering, payload fraction is a common term used to characterize the efficiency of a particular design. Payload fraction is calculated by dividing the weight of the payload by the takeoff weight of aircraft. Fuel represents a considerable amount of the overall takeoff weight, and for shorter trips it is quite common to load less fuel in order to carry a lighter load. For this reason the useful load fraction calculates a similar number, but based on the combined weight of the payload and fuel together. (en) |
| rdfs:label |
유상 하중비 (ko) Payload fraction (en) |
| owl:sameAs |
freebase:Payload fraction wikidata:Payload fraction dbpedia-ko:Payload fraction https://global.dbpedia.org/id/fFvA |
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wikipedia-en:Payload_fraction?oldid=1041308111&ns=0 |
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wikipedia-en:Payload_fraction |
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dbr:Useful_load_fraction |
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dbr:Hovertrain dbr:Payload dbr:Douglas_SASSTO dbr:SABRE_(rocket_engine) dbr:Steam_rocket dbr:Antimatter_rocket dbr:Skylon_(spacecraft) dbr:Mass_ratio dbr:Bristol_Brabazon dbr:Tripropellant_rocket dbr:Agni-III dbr:Reaction_wheel dbr:Tsiolkovsky_rocket_equation dbr:OTRAG_(rocket) dbr:Mass_fraction dbr:Propellant_mass_fraction dbr:Tracked_Hovercraft dbr:Useful_load_fraction |
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wikipedia-en:Payload_fraction |