RCAIDE.Library.Methods.Mass_Properties.Weight_Buildups.Conventional.BWB.FLOPS.compute_operating_items_weight.compute_operating_items_weight

compute_operating_items_weight(vehicle)

Calculate the weight of operating items, including: - crew - baggage - unusable fuel - engine oil - passenger service - ammunition and non-fixed weapons - cargo containers (not included)

Assumptions:

If no tanks are specified, 5 fuel tanks are assumed (includes main and auxiliary tanks) If the number of coach seats is not defined, then it assumed that 5% of

of the seats are first class and an additional 10 % are business class.

If the number of coach seats is defined, then the additional seats are 1/4 first class

and 3/4 business class

Source:

The Flight Optimization System Weight Estimation Method

Inputs:

vehicle - data dictionary with vehicle properties [dimensionless]

-.networks: data dictionary containing all propulsion properties

-.number_of_engines: number of engines -.sealevel_static_thrust: thrust at sea level [N]

-.reference_area: wing surface area [m^2] -.mass_properties.max_takeoff: MTOW [kilograms] -.passengers: number of passengers in aircraft -.design_mach_number: design mach number for cruise flight -.design_range: design range of aircraft [nmi]

Outputs:

output - data dictionary with weights [kilograms]

• output.oper_items: unusable fuel, engine oil, passenger service weight and cargo containers

• output.flight_crew: flight crew weight

• output.flight_attendants: flight attendants weight

• output.total: total operating items weight

Properties Used:

N/A