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weight and performance calculations for the Airbus A320neo

***** PRELIMINARY FILE ****

Lufthansa A320neo (A320-271N) D-AINA taking off, it has Pratt & Whitney PW1127G-JM engines.

Airbus A320neo

role : jet airliner

importance : ****

first flight : 25 September 2014 operational : January 2016 (Lufthansa)

country : EU-consortium

design :

production : January 2023 3980 A320neo ordered, 1657 delivered

general information :

New A320 version with new engines (neo = New Engine Option) giving 15% fuel burn

reduction and 20% less maintenance. There are two engine

options : CFM LEAP-1A or the Pratt&Whitney PW1000G with geared turbofan.

The A320neo is half as  loud  as an A320 at take-off, with an 85 decibel  noise footprint .

Besides the new engines it

has winglets (sharklets called by Airbus) fitted as standard. The sharklets add 200kg

to the weight of the aircraft but gives 3.5% fuel burn reduction. It has 60% market

share compared to its competitor the Boeing 737MAX.

In 2018, an A320neo list price was US$110.6 million.

primary users : Lufthansa, Indigo (87), Frontier Airlines (33), China Southern (26),

Spirit Airlines, Avianca, Air Arabia

Accommodation:

flight crew : 2 cabin crew : 6

passengers : seating for 150 in two class : 12 business class and 138 economy class seats ( 32 -in pitch)

high density seating for 194 passengers

engine : 2 CFM International LEAP-1A26

turbofan engines of 120.64 [KN] (27120.5 [lbf])

dimensions :

wingspan : 35.8 [m], length : 37.57 [m], height : 11.76 [m]

wing area : 122.4 [m^2] fuselage exterior width : 3.95 [m]

weights :

operating empty weight : 44300 [kg] max. structural payload : 20000 [kg]

Zero Fuel weight (ZFW) : 64300 [kg] max. landing weight (MLW) : 67400 [kg]

max.take-off weight : 79000 [kg] weight fuel : 18992 [kg] (23740 [liter])

performance :

Max. operating Mach number (Mmo) : 0.82 [Mach] (884 [km/hr]) at 10000 [m]

normal cruise speed : 870 [km/hr] (Mach 0.81 ) at 10000 [m] (29 [%] power)

economic cruise speed : 837 [km/hr] (Mach 0.78 ) at 10000 [m]

service ceiling : 11900 [m]

range with max fuel : 6300 [km] (ATA domestic fuel reserves - 370.0 [km] alternate)

description :

low-wing cantilever monoplane with retractable landing gear with nose wheel

two main spar fail-safe wing structure

with double slotted flaps with slotted LE flaps (slats) ,with spoilers and sharklets

airfoil : NACA with supercritical cross-section sweep angle 3/4 chord: 25.0 [°]

Airbus A320neo prototype

engines attached with pylons to the wing, main landing gear attached to the wings, fuel tanks in the wings and fuselage

fuselage shape : 0 construction : all-metal aluminium-alloy stressed-skin construction with pressurized fuselage

calculation : *1* (dimensions)

wing chord at root : 6.07 [m]

mean wing chord : 3.42 [m]

calculated average wing chord tapered wing with rounded tips: 3.41 [m]

wing aspect ratio : 10.47 []

seize (span*length*height) : 15817 [m^3]

calculation : *2* (fuel consumption)

oil consumption : 7.2 [kg/hr]

fuel consumption (econ. cruise speed) : 2383.3 [kg/hr] (2979.1 [litre/hr]) at 19 [%] power

distance flown for 1 kg fuel : 0.35 [km/kg] at 10000 [m] height, sfc : 51.8 [kg/KN/h]

total fuel capacity : 23740 [litre] (18992 [kg])

calculation : *3* (weight)

weight engine(s) dry : 6100.0 [kg] = 25.28 [kg/KN]

weight 82 litre oil tank : 6.98 [kg]

oil tank filled with 1.5 litre oil : 1.4 [kg]

oil in engine 3.0 litre oil : 2.7 [kg]

fuel in engine 13.2 litre fuel : 9.65 [kg]

weight fuel lines 44.1 [kg]

weight engine cowling 627.3 [kg]

weight thrust reversers 96.5 [kg]

total weight propulsion system : 6889 [kg](8.7 [%])

***************************************************************

Accommodation cabin facilities:

typical 2-class cabin layout for 150 passengers : economy : pitch : 81.3 [cm] 32.0 [-in]

( 3+3 ) seating in 25.4 rows

weight seats : 790.0 [kg]

high density seating passengers : 195 [pax] at 6 -abreast seating in 32.5 rows,

pitch 71.1 [cm] 28.0 [-in]

The new "Space-Flex" optional cabin configuration increases space-efficiency with a new rear  galley  configuration and a "Smart-Lav" modular  lavatory  design – allowing an in-flight change of two lavatories into one  accessible toilet . The rearranged cabin allows up to 20 more passengers for the A321neo without "putting more sardines in the can" with the larger "Cabin-Flex" modified exits described below. Total fuel consumption per seat is reduced by over 20%, while the rearranged cabin allows up to nine more passengers for the A320neo.

pax density, normal seating : 0.65 [m2/pax], high density seating : 0.50 [m2/pax]

weight 4 lavatories : 53.9 [kg]

weight 2 galleys : 136.3 [kg]

weight overhead stowage for hand luggage : 52.5 [kg]

weight 3 wardrobe closets : 30.0 [kg]

weight 53 windows : 47.5 [kg]

IndiGo A320neo interior

weight 4 1.83x0.86 [m] entrance/exit doors : 192.6 [kg]

weight 2 (130x122 cm) freight doors (belly) : 97.1 [kg]

belly baggage/cargo hold volume front : 18.25 [m3]

belly baggage/cargo hold volume rear : 23.70 [m3]

passenger compartment volume : 139 [m3]

passenger cabin max.width : 3.70 [m] cabin length : 27.51 [m] cabin height : 2.18 [m]

floor area : 97.7 [m2]

weight cabin facilities : 1399.9 [kg]

safety facilities:

weight 4 over wing emergency exits (91x51 cm): 91.8 [kg]

weight 8 hand fire extinguisher : 23 [kg]

weight cockpit voice recorder (CVR) and flight data recorder (FDR): 20.0 [kg]

weight oxygen masks & oxygen generators : 97.5 [kg]

weight emergency flare installation : 10 [kg]

weight 4 emergency evacuation slides : 134.7 [kg]

weight safety equipment & facilities : 377 [kg]

fuselage construction:

fuselage aluminium frame : 10830 [kg]

floor loading (payload/m2): 205 [kg/m2]

weight rear pressure bulkhead : 166.4 [kg]

fuselage covering ( 353.9 [m2] duraluminium 2.60 [mm]) : 2425.3 [kg]

weight floor beams : 683.0 [kg]

weight cabin furbishing : 882.7 [kg]

weight cabin floor : 1301.6 [kg]

fuselage (sound proof) isolation : 256.3 [kg]

weight 8250 [litre] main central fuel tanks empty : 462.0 [kg]

weight 2990 [litre] additional central fuel tank (ACT) empty : 167.4 [kg]

weight empty 205 [litre] potable water tank : 18.2 [kg]

weight empty waste tank : 15.0 [kg]

weight fuselage structure : 17207.6 [kg]

Avionics:

weight HF and UHF radio : 7.0 [kg]

weight dual cloud-collision radar : 25.0 [kg]

weight VOR/ILS,RMI,Doppler,radio altimeter : 12.0 [kg]

Lufthansa D-AINA cockpit

weight Integrated Flight System / auto-pilot : 23.0 [kg]

weight EFIS (CRT PFD+ND) : 8 [kg]

weight engine monitoring system ECAM : 6 [kg]

weight avionics : 81.0 [kg]

Systems:

Air-conditioning and pressurisation system maintains sea level conditions up to

5875 [m] and gives equivalent of 2440 [m] at 11200 [m].

pressure differential : 0.54 [bars] (kg/cm2)

pressurized fuselage volume : 333 [m3]

weight air-conditioning and pressurisation system : 186 [kg]

weight APU / engine starter: 60.3 [kg]

weight lighting : 49.5 [kg]

weight engine-driven 40kVA electricity generators : 37.5 [kg]

weight controls (sidestick FBW): 10.8 [kg]

weight systems : 344.6 [kg]

total weight fuselage : 19410 [kg](24.6 [%])

***************************************************************

total weight aluminium ribs (1180 ribs) : 2817 [kg]

weight engine mounts : 121 [kg]

weight 6 fuel tanks empty for total 12500 [litre] fuel : 700 [kg]

weight wing covering (painted aluminium 4.39 [mm]) : 2904 [kg]

total weight aluminium spars (multi-cellular wing structure) : 2714 [kg]

weight wings : 8436 [kg]

weight wing/square meter : 68.92 [kg]

weight thermal leading-edge anti-icing : 39.4 [kg]

weight ailerons (3.8 [m2]) : 132.9 [kg]

weight fin (15.3 [m2]) : 794.3 [kg]

weight rudder (11.4 [m2]) : 379.4 [kg]

weight tailplane (stabilizer) (31.8 [m2]): 1538.6 [kg]

weight elevators (10.7 [m2]): 198.8 [kg]

weight flight control hydraulic servo actuators: 53.0 [kg]

Citilink A320-251N PK-GTE c/n 7603 with CFM LEAP-1A26 engines

weight trailing-edge double slotted flaps (21.3 [m2]) : 628.9 [kg]

weight leading edge slats (6.6 [m2]) : 129.3 [kg]

weight spoilers (3.5 [m2]) : 64.4 [kg]

weight sharklets : 200 [kg]

total weight wing surfaces & bracing : 13415 [kg] (17.0 [%])

*******************************************************************

tyre pressure main wheels : 11.80 [Bar] (nitrogen), ply rating : 23 PR

tyre speed limit : 364 [km/hr]

Aircraft Classification Number, MTOW on rigid runway and medium

subgrade strength : 47 [ ]

Can only operate from paved runways

wheel pressure : 17380.0 [kg]

weight 4 Dunlop main wheels (1240 [mm] by 455 [mm]) : 690.8 [kg]

weight 2 nose wheels : 172.7 [kg]

weight multi-disc wheel-brakes : 64.3 [kg]

weight flywheel detector type anti-skid units : 5.4 [kg]

weight oleo-pneumatic shock absorbers : 85.7 [kg]

weight wheel hydraulic operated retraction system : 649.4 [kg]

weight undercarriage struts with axle 1546.1 [kg]

total weight landing gear : 3214.4 [kg] (4.1 [%]

*******************************************************************

********************************************************************

calculated empty weight : 42928 [kg](54.3 [%])

weight oil for 8.7 hours flying : 69.2 [kg]

weight lifejackets : 67.5 [kg]

weight 3 life rafts : 93.8 [kg]

weight catering : 227.1 [kg]

weight water : 181.7 [kg]

weight crew : 648 [kg]

weight crew lugage,nav.chards,flight doc.,miscell.items : 85 [kg]

operational weight empty : 44300 [kg] (56.1 [%])

********************************************************************

weight 150 passengers : 11550 [kg]

weight luggage : 2400 [kg]

weight cargo : 6050 [kg] (cargo+luggage/m3 belly : 187 [kg/m3])

zero fuel weight (ZFW): 64300 [kg](81.4 [%])

weight fuel for landing (1.3 hours flying) : 3100 [kg]

max. landing weight (MLW): 67400 [kg](85.3 [%])

max. fuel weight : 63292 [kg] (80.1 [%])

payload with max fuel : 169 passengers+luggage 15708 [kg]

published maximum take-off weight : 79000 [kg] (100.0 [%])

calculation : * 4 * (engine power)

power loading (Take-off) : 327 [kg/KN]

power loading (Take-off) 1 PUF: 655 [kg/KN]

max. total take-off power : 241.3 [KN]

calculation : *5* (loads)

manoeuvre load : 5.7 [g] at 1000 [m]

limit load : 3.0 [g] ultimate load : 4.5 [g] load factor : 1.2 [g]

March 2017 the A320neo in service had an average flight time of 1.54 hour. Making 10 cycles a day with Lufthansa and 8.4 block hours. China Southern airlines operates the A320neo near to 6 hr sectors, an indication for the versatility of the aircraft.

design flight time : 3.03 [hours]

design cycles : 36037 sorties, design hours : 109128 [hours]

max. wing loading (MTOW & flaps retracted) : 645 [kg/m2]

wing stress (2 g) during operation : 170 [N/kg] at 2g emergency manoeuvre

calculation : *6* (angles of attack)

angle of attack zero lift : -1.65 ["]

max. angle of attack (stalling angle, clean) : 13.13 ["]

max. angle of attack (full flaps) : 17.33 ["]

angle of attack at max. speed : 3.54 ["]

Vietnam Bamboo Airways A320neo stewardess

calculation : *7* (lift & drag ratios

lift coefficient at angle of attack 0° : 0.15 [ ]

lift coefficient at max. speed : 0.47 [ ]

lift coefficient at max. angle of attack : 1.34 [ ]

max. lift coefficient full flaps : 2.37 [ ]

drag coefficient at max. speed : 0.0326 [ ]

drag coefficient at econ. cruise speed : 0.0337 [ ]

induced drag coefficient at econ. cruise speed : 0.0101 [ ]

drag coefficient (zero lift) : 0.0236 [ ]

lift/drag ratio at max. speed : 14.46 [ ]

calculation : *8* (speeds

take-off safety speed (V2) : 270 [km/u]

take-off (initial climb) speed (Vto) : 320 [km/u]

stalling speed clean at sea-level (OW loaded : 76617 [kg]): 311 [km/u]

max. rate of climb speed : 636 [km/hr] at sea-level

max. endurance speed (Vbe): 472 [km/u] min. fuel/hr : 2184 [kg/hr] at height : 3658 [m]

max. range speed (Vbr): 883 [km/u] min. fuel consumption : 2.644 [kg/km] at cruise height : 11278 [m]

cruising speed : 870 [km/hr] at 10000 [m] (power:20 [%])

max. operational speed (Mmo) : 884.00 [km/hr] (Mach 0.82 ) at 10000 [m]

(power:20.0 [%])

airflow at cruise speed per engine : 307.1 [kg/s]

speed of thrust jet : 1149 [km/hr]

initial descent speed 10000 - 7315 [m]: Mach 0.75

descent speed 7315 - 3048 [m]: 537 [km/u]

approach speed 3048 - 500 [m] (clean): 463 [km/u]

stalling speed clean at 500 [m] height at Max.Landing Weight : 67400 [kg]): 299 [km/u]

final approach speed at sea-level with full flaps (normal landing weight) (Vapp): 257

[km/u]

ICAO Aircraft Approach Category (APC) : C

landing speed at sea-level (normal landing weight(Vtd): 67196 [kg]): 227 [km/hr]

stalling speed at sea-level with full flaps (normal landing weight): 198 [km/u]

rate of climb at sea-level ROC (loaded) : 1369 [m/min]

rate of climb at 1000 [m] with 1 engine out (PUF / MTOW) : 744 [m/min]

rate of descent: 457 [m/min]

calculation : *9* (regarding various performances)

high wheel pressure, can only take off from paved runways

take-off distance at sea-level concrete runway : 1847 [m]

ICAO Aerodrome Reference Code : 4C

take-off distance at sea-level over 15 [m] height : 1963 [m]

landing run : 843 [m]

landing run (C.A.R.) from 15 [m] at SL, dry runway : 1355 [m]

landing run (C.A.R.) from 15 [m] at SL, wet runway : 1655 [m]

lift/drag ratio : 16.17 [ ]

climb to 5000 [m] with max payload : 3.38 [min]

climb to 10000 [m] with max payload : 10.40 [min]

descent time from 10000 [m] to 250 [m] : 24.33 [min]

ceiling limited by max. pressure differential 12850 [m]

theoretical ceiling fully loaded (mtow- 60 min.fuel: 76617 [kg] ) : 14900 [m]

calculation *10* (action radius & endurance)

range with max. payload: 5067 [km] with 20000.0 [kg] max. useful load (77.4 [%] fuel)*

range with high density pax: 5758 [km] with 195 passengers (87.2 [%] fuel)*

range with typical two-class pax: 6771 [km] with 150 passengers (100.0 [%] fuel)*

range with max.fuel : 6670 [km] with 8 crew and 169 passengers and 100.0 [%] fuel*

ferry range : 7633 [km] with 2 crew and zero payload (100.0 [%] fuel)*

max range theoretically with additional fuel tanks total 44493.5 [litre] fuel : 13403

[km] *

* calculated ranges without fuel reserves

Available Seat Kilometres (ASK) : 1015708 [paskm]

useful load with range 1000km : 20000 [kg]

useful load with range 1000km : 195 passengers

production (theor.max load): 17400 [tonkm/hour]

production (useful load): 17400 [tonkm/hour]

production (passengers): 130500 [paskm/hour]

oil and fuel consumption per tonkm : 0.137 [kg]

fuel cost per paskm : 0.018 [eur]

crew cost per paskm : 0.008 [eur]

list price 2023 : 114 [mln USD]

economic hours : 78000 [hours] is 29 [%] less then design hours

time between engine failure : 645 [hr]

can continue fly on 1 engine, low risk for emergency landing for PUF

writing off per paskm : 0.009 [eur]

insurance per paskm : 0.0039 [eur]

maintenance cost per paskm : 0.014 [eur]

direct operating cost per paskm : 0.054 [eur]

direct operating cost per tonkm (max. load): 0.404 [eur]

direct operating cost per tonkm (normal useful load): 0.404 [eur]

accidents with fatalities > see the accident file

Literature :

https://contentzone.eurocontrol.int/aircraftperformance/default.aspx?

https://www.airbus.com/en/airport-operations-and-technical-data/aircraft- characteristics

Airbus A320neo family - Wikipedia

Airbus voert productie van populaire A320neo-serie verder op | Luchtvaartnieuws

Citilink Airbus A320-251N - SkyTeam Virtual

DISCLAIMER Above calculations are based on published data, they must be

regarded as indication not as facts.

Calculated performance and weight may not correspond with actual weights

and performances and are assumptions for which no responsibility can be taken.

Calculations are as accurate as possible, they can be fine-tuned when more data

is available, you are welcome to give suggestions and additional information

so we can improve our program. For copyright on drawings/photographs/

content please mail to below mail address

(c) B van der Zalm 22 October 2022 contact : info.aircraftinvestigation@gmail.com python 3.7.4