Conditions for Passenger Aircraft Minimum Fuel Consumption, Direct Operating Costs and Environmental Impact
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'Purpose – Find optimal flight and design parameters for three objectives: minimum fuel consumption, Direct Operating Costs (DOC), and environmental impact of a passenger jet aircraft. --- Approach – Combining multiple models (this includes aerodynamics, specific fuel consumption, DOC, and equivalent CO2 mass) into one generic model. In this combined model, each objective's importance is determined by a weighting factor. Additionally, the possibility of further optimizing this model by altering an aircraft's wing loading is analyzed. --- Findings – When optimizing for a compromise between economic and ecologic benefits, the general outcome is a reduction in cruise altitude and an unaltered cruise Mach number compared to common practice. Decreasing cruise speed would benefit the environmental impact but has a negative effect on seat-mile ' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["Aerodynamics","Aeronautics","aircraft","Airplanes","Airplanes--Performance","Air--Pollution","Altitudes","aviation","Betriebskosten","commercial","consumption","Cost accounting","Direct Operating Costs","DOC","Electronic spreadsheets","Energieverbrauch","Energy conservation","Environmental protection","flight","flight mechanics","Flugmechanik","Flugtriebwerk","Flugzeug","Flugzeugaerodynamik","fuel","fuel burn","fuel consumption","Global warming","Luftfahrt","Luftverschmutzung","mechanics","Speed","Tabellenkalkulation"]} <|eot_id|>
 Here is the Description of a dataset. Description:'Purpose – Find optimal flight and design parameters for three objectives: minimum fuel consumption, Direct Operating Costs (DOC), and environmental impact of a passenger jet aircraft. --- Approach – Combining multiple models (this includes aerodynamics, specific fuel consumption, DOC, and equivalent CO2 mass) into one generic model. In this combined model, each objective's importance is determined by a weighting factor. Additionally, the possibility of further optimizing this model by altering an aircraft's wing loading is analyzed. --- Findings – When optimizing for a compromise between economic and ecologic benefits, the general outcome is a reduction in cruise altitude and an unaltered cruise Mach number compared to common practice. Decreasing cruise speed would benefit the environmental impact but has a negative effect on seat-mile ' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
Purpose – Find optimal flight and design parameters for three objectives: minimum fuel consumption, Direct Operating Costs (DOC), and environmental impact of a passenger jet aircraft. --- Approach – Combining multiple models (this includes aerodynamics, specific fuel consumption, DOC, and equivalent CO2 mass) into one generic model. In this combined model, each objective's importance is determined by a weighting factor. Additionally, the possibility of further optimizing this model by altering an aircraft's wing loading is analyzed. --- Findings – When optimizing for a compromise between economic and ecologic benefits, the general outcome is a reduction in cruise altitude and an unaltered cruise Mach number compared to common practice. Decreasing cruise speed would benefit the environmental impact but has a negative effect on seat-mile 
Aerodynamics; Aeronautics; aircraft; Airplanes; Airplanes--Performance; Air--Pollution; Altitudes; aviation; Betriebskosten; commercial; consumption; Cost accounting; Direct Operating Costs; DOC; Electronic spreadsheets; Energieverbrauch; Energy conservation; Environmental protection; flight; flight mechanics; Flugmechanik; Flugtriebwerk; Flugzeug; Flugzeugaerodynamik; fuel; fuel burn; fuel consumption; Global warming; Luftfahrt; Luftverschmutzung; mechanics; Speed; Tabellenkalkulation