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weight and performance calculations for the Boeing 767-300ER
Martinair B767-31AER PH-MCH c/n 24429 “Prins Constantijn” Schiphol, June 2001. The aircraft was delivered to Martinair in February 1990. © bvdz
Boeing 767-300ER
role : wide-body airliner
importance : *****
first flight : operational : March 1988
country : United States of America
ICAO aircraft type designator : B763
production : 583 aircraft
general information :
The 767-300ER was the most successful 767 variant.
primary users : American Airlines, United Airlines, Delta Airlines, KLM, Arke Fly, Martinair
Accommodation:
flight crew : 2 cabin crew : 8
passengers : seating for 248 in two class : 24 first class and 224 coach class seats
( 34 -in pitch) exit limit : 290 passengers, high density seating for 279 passengers
engine : 2 Pratt & Whitney PW4060 turbofan engines of 266.9 [KN] (60000 [lbf])
dimensions :
wingspan : 47.57 [m], length overall: 54.94 [m], length of fuselage : 53.67 [m] height :
15.85 [m] wing area gross : 283.3 [m^2] fuselage exterior width : 5.03 [m]
weights :
operating empty weight : 90011 [kg] max. structural payload : 43798 [kg]
Zero Fuel weight (ZFW) : 133809 [kg] max. landing weight (MLW) : 145149 [kg]
max. take-off weight : 186880 [kg] weight usable fuel : 71733 [kg] (91379 [litres])
performance :
Max. operating Mach number (Mmo) : 0.86 [Mach] (940 [km/hr]) at 9000 [m]
critical Mach speed : 0.84 [Mach]
max. cruising speed : 885 [km/hr] (Mach 0.83 ) at 10668 [m] (31 [%] power)
economic cruising speed : 860 [km/hr] (Mach 0.81 ) at 10668 [m]
service ceiling : 11250 [m]
range with max fuel and MTOW : 11020 [km] (ATA domestic fuel reserves - 370.0 [km]
alternate)
description :
*Cantilever low-wing monoplane with retractable landing gear with nose wheel
*Engines attached with pylons to the wing, main landing gear attached to the wings, fuel
tanks in the wings and fuselage
Delta airlines 767-332ER(WL) N1608 c/n 30573 landing at Raleigh, USA, July 2019. It is fitted with winglets. Later production aircraft had the option for winglets. Older aircraft could be retrofitted with winglets if needed.
*Wings : tapered multi-cellular fail safe wing with improved 2324 and 7150 aluminium alloy
stressed skin, with carbon-fiber-reinforced polymer composite material wing surfaces and
Kevlar fairings with Fowler-type double slotted trailing edge flaps on inner wing and
single-slotted flap on outer wing with full-span slotted LE flaps (slats) ,with spoilers
airfoil : Boeing airfoil with supercritical cross-section
average thickness/chord ratio : 12.7 [%], sweep angle 3/4 chord: 31.5 [°]
incidence : 4.25 [°], dihedral : 6.0 [°]
*Fuselage : Pressurized aluminium-alloy stressed-skin structure of elliptical 0 section
calculation : *1* (dimensions)
wing chord at root : 8.57 [m]
wing chord at tip : 2.29 [m]
taper ratio : 0.267 [ ]
mean wing chord : 5.96 [m]
wing aspect ratio : 7.99 []
Oswald factor (e): 0.680 []
seize (span*length*height) : 41424 [m^3]
calculation : *2* (fuel consumption)
oil consumption : 0.8 [kg/hr]
fuel consumption (econ. cruise speed) : 5416.2 [kg/hr] (6899.6 [litre/hr]) at 26 [%] power
distance flown for 1 kg fuel : 0.16 [km/kg] at 10668 [m] height, sfc : 39.0 [kg/KN/h]
total fuel capacity : 91379 [litre] (71733 [kg])
calculation : *3* (weight)
weight engine(s) dry : 8546.0 [kg] = 16.01 [kg/KN]
weight 25.4 litre oil tank : 2.16 [kg]
oil tank filled with 3.4 litre oil : 3.0 [kg]
oil in engine 6.5 litre oil : 5.9 [kg]
weight all fuel lines and pumps containing 100 litres fuel : 137.4 [kg]
weight engine cowling : 1387.9 [kg]
weight thrust reversers : 800.7 [kg]
total weight propulsion system : 10883 [kg](5.8 [%])
***************************************************************
Accommodation cabin facilities:
typical 2-class cabin layout for 248 passengers : economy : pitch : 86.4 [cm] 34.0 [-in]
( 2+3+2 ) seating in 36.0 rows first class pitch : 96.5 [cm] 38.0 [-in] at 6 -abreast
weight passenger seats (width 53.7 [cm]) : 1337.7 [kg]
weight cabin crew seats : 40.0 [kg]
weight flight crew seats : 42.0 [kg]
high density seating passengers : 279 [pax] at mainly 8 -abreast seating in 37.9 rows, pitch
83.8 [cm] 33.0 [-in]
pax density, normal seating : 0.74 [m2/pax], high density seating : 0.66 [m2/pax]
weight 6 lavatories : 126.9 [kg]
weight 5 galleys : 803.5 [kg]
Royal Flight attendants posing inside a 767-300ER
weight overhead stowage for hand luggage (total : 24.1 [m3]) : 82.4 [kg]
weight 1 wardrobe closets : 49.6 [kg]
weight 3 movie screens : 53.8 [kg]
weight 74 windows (41 x 28 cm) made of acrylic glass : 202.2 [kg]
weight 2 (1.88 x 1.07 [m]) Type A main entry doors : 140.4 [kg]
weight 2 (1.83 x 1.07 [m]) galley service doors : 136.7 [kg]
weight 2 (main door size : 1.75 x 1.78 [m]) freight doors (belly) : 236.3 [kg]*
total usable belly baggage/cargo hold volume : 146.0 [m3]
underfloor belly hold can accommodate : 30 LD2 containers, netto volume : 102.0 [m3]
and : 12.2 [m3] usable bulk cargo
cabin volume (usable), excluding flight deck : 484 [m3]
passenger compartment volume : 308 [m3]
passenger cabin max width : 4.72 [m] cabin length : 40.34 [m] max cabin height : 2.87 [m]
floor area : 184.6 [m2]
weight cabin facilities : 3251.5 [kg]
safety facilities:
weight 4 type III over wing emergency exits (51x91 cm): 68.4 [kg]
evacuation time with 279 passengers : 56 [sec]
weight 6 hand fire extinguisher : 19 [kg]
weight cockpit voice recorder (CVR) and flight data recorder (FDR): 20.0 [kg]
weight oxygen masks & oxygen generators (deploy cabin alt.>4267m): 161.2 [kg]
weight emergency flare installation : 10 [kg]
weight 4 emergency evacuation slides : 283.5 [kg]
weight safety equipment & facilities : 562 [kg]
fuselage construction:
fuselage aluminium frame : 19582 [kg]
floor loading (payload/m2): 237 [kg/m2]
weight rear pressure bulkhead : 352.3 [kg]
fuselage covering ( 645.3 [m2] duraluminium 3.39 [mm]) : 5820.7 [kg]
weight paint fuselage : 135.5 [kg]
weight aluminium floor beams : 1834.2 [kg]
weight cabin furbishing : 2737.3 [kg]
weight cabin floor : 2649.1 [kg]
weight (sound proof) isolation : 522.2 [kg] TO-noise level : 98.2 [EPNdB]
weight 45428 [litre] main central fuel tanks empty : 908.6 [kg]
weight empty 648 [litre] potable water tanks : 57.4 [kg]
weight empty waste tank : 29.5 [kg]
weight fuselage structure : 34629.1 [kg]
Avionics:
weight VHF radio and Selcal : 9.0 [kg]
weight flight and service attendants intercom : 5.0 [kg]
weight monochromatic weather X-band (3.2cm wavelength) radar system : 25.0 [kg]
weight VOR/ILS,RMI,DME,radio altimeter, ASI, time clock : 20.0 [kg]
weight dual digital Flight Management System (FMS) for navigation/auto-pilot : 20.0 [kg]
weight Cat IIIB auto-landing system : 10.0 [kg]
United Airlines Boeing 767-300ER(WL) cockpit N652UA
weight EFIS (4 Rockwell Collins CRT screens ADI/PFD+HSI/ND displays) : 20 [kg]
weight ground proximity warning system (GPWS) : 6 [kg]
weight reserve ADI, ASI, alti-meter, compass, engine temp. and rpm indicators : 15 [kg]
weight avionics : 131.0 [kg]
Systems:
Air-conditioning and pressurization system maintains sea level conditions up to 6525 [m]
and gives equivalent of 2250 [m] at 11885 [m]. pressure differential : 0.59 [bar] (kg/cm2)
pressurized fuselage volume : 804 [m3] cabin air refreshment time : 3.5 [min]
weight air-conditioning and pressurization system : 385 [kg]
weight APU / engine starter : 133.4 [kg]
weight lighting : 81.8 [kg]
weight triple redundant 207 bar hydraulic system : 210.1 [kg]
weight two engine-driven 90kVA 400 Hz 3-phase AC electricity generators : 62.0 [kg]
weight ram air turbine for emergency electric power : 5.0 [kg]
weight 22Ah battery : 28.5 [kg]
weight controls : 22.3 [kg]
weight systems : 923.5 [kg]
total weight fuselage : 39498 [kg](21.1 [%])
***************************************************************
total weight aluminium ribs (62 ribs) : 6394 [kg]
weight engine mounts : 267 [kg]
weight 6 wing fuel tanks empty for total 45951 [litre] fuel : 689 [kg]
weight 366 [litre] vent surge tanks : 44 [kg]
weight wing covering (painted aluminium 4.24 [mm]) : 6484 [kg]
total weight aluminium spars (multi-cellular wing structure) : 7639 [kg]
weight wings : 20516 [kg]
weight wing/square meter : 72.42 [kg]
weight bleed air thermal leading-edge anti-icing : 52.3 [kg]
weight high & low speed ailerons (11.6 [m2]) : 336.8 [kg]
KLM Boeing 767-306ER PH-BZC c/n 26263 at Schiphol (c) bvdz
weight fin (30.2 [m2]) : 1096.7 [kg]
weight rudder (16.0 [m2]) : 557.4 [kg]
weight tailplane (horizontal stabilizer) (59.9 [m2]): 2390.2 [kg]
weight elevators (17.8 [m2]): 348.5 [kg]
weight paint wing & tail surfaces : 156.8 [kg]
weight flight control hydraulic servo actuators: 69.0 [kg]
weight trailing-edge double + single slotted flaps (36.9 [m2]) : 1141.2 [kg]
weight track-mounted light alloy construction leading edge slats (28.3 [m2]) : 549.9 [kg]
weight fly-by-wire operated spoilers of graphite composite construction (15.9 [m2]) : 251.7
[kg]
total weight wing construction : 28467 [kg] (31.6 [%])
*******************************************************************
tire pressure main wheels : 13.46 [Bar] (nitrogen), ply rating : 32 PR
tire speed limit : 364 [km/hr]
total tyre footprint : 0.74 [m2]
Runway LCN at MTOW (0.76m radius of rigidity) : 66 [ ]
Aircraft Classification Number (ACN), MTOW on rigid runway and medium subgrade
strength (B) : 49 [ ]
Can only operate from unpaved runways with reduced weight and reduced tyre pressure
wheel pressure : 20556.8 [kg]
wheel track : 9.30 [m] wheelbase : 22.76 [m]
weight 8 Dunlop 46 x 18 main wheels (1170 [mm] by 458 [mm]) : 1282.2 [kg]
weight 2 nose wheels : 160.3 [kg]
weight multi-disc wheel-brakes : 157.4 [kg]
weight Hydro-air flywheel detector type anti-skid units : 9.0 [kg]
weight oleo-pneumatic shock absorbers : 178.4 [kg]
weight wheel hydraulic operated retraction system : 1750.5 [kg]
weight retractable tailskid : 25 [kg]
weight undercarriage struts (four-wheel bogies) with axle 5102.2 [kg]
total weight landing gear : 8665.0 [kg] (4.6 [%]
*******************************************************************
********************************************************************
calculated empty weight : 87512 [kg](46.8 [%])
weight oil for 14.9 hours flying : 12.7 [kg]
unusable fuel in engine and tanks 365.5 litre fuel : 286.9 [kg]
weight lifejackets : 111.6 [kg]
weight 4 life rafts : 155.0 [kg]
Kenya Airways B767-33AER VH-NOA c/n 27909 landing at Schiphol, spring 2001 © bvdz
weight catering : 415.6 [kg]
weight water : 573.6 [kg]
weight crew : 810 [kg]
weight crew luggage, navigation chards, flight docs (NOTOC), manuals, miscellaneous items
: 133 [kg]
operational weight empty : 90011 [kg] (48.2 [%])
********************************************************************
weight 248 passengers : 19096 [kg]
weight luggage : 3968 [kg]
weight cargo : 20734 [kg] (cargo + luggage/m3 belly : 162 [kg/m3])
zero fuel weight (ZFW): 133809 [kg](71.6 [%])
weight fuel for landing (2.1 hours flying) : 11340 [kg]
max. landing weight (MLW): 145149 [kg](77.7 [%])
max. fuel weight : 161744 [kg] (86.5 [%])
payload with max fuel : 270 passengers + luggage 25136 [kg]
published maximum take-off weight : 186880 [kg] (100.0 [%])
KLM Boeing 767-306ER PH-BZF c/n 27959 at Schiphol with Kenya Airways B767-33AER VH-NOA in the background, spring 2001.(c) bvdz
calculation : * 4 * (engine power)
power loading (Take-off) : 350 [kg/KN]
power loading (Take-off) 1 PUF: 700 [kg/KN]
max. total take-off power : 533.8 [KN]
calculation : *5* (loads)
manoeuvre load : 0.8 [g] at 9000 [m]
limit load : 2.5 [g] ultimate load : 3.8 [g] load factor : 1.2 [g]
design flight time : 6.00 [hours]
30 year old Air Canada B767-375ER C-GHOZ c/n 24087 landing at Calgary (YYC), Canada, October 2019. In September 2017 this workhorse already had flown for 120692 hours. It was delivered to Canadian Airlines in March 1989. And made an average of 4235 flying hours each year.
design cycles : 13240 sorties, design hours : 79440 [hours]
max. wing loading (MTOW & flaps retracted) : 660 [kg/m2]
wing stress (2 g) during operation : 158 [N/kg] at 2g emergency manoeuvre
calculation : *6* (angles of attack)
angle of attack zero lift : -1.87 ["]
max. angle of attack (stalling angle, clean) : 11.30 ["]
max. angle of attack (full flaps) : 19.26 ["]
angle of attack at economic cruise speed : 3.77 ["]
calculation : *7* (lift & drag ratios
lift coefficient at angle of attack 0° : 0.16 [ ]
lift coefficient at max. speed : 0.36 [ ]
lift coefficient at max. angle of attack (clean): 1.13 [ ]
max. lift coefficient 30 [° ] flap setting : 2.09 [ ]
drag coefficient at max. speed : 0.0418 [ ]
drag coefficient at econ. cruise speed : 0.0453 [ ]
induced drag coefficient at econ. cruise speed : 0.0136 [ ]
drag coefficient (zero lift) : 0.0316 [ ]
lift/drag ratio at econ. speed : 8.65 [ ]
calculation : *8* (speeds
minimum unstick speed (Vmu) at TO angle 12.2 ° : 298 [km/u] (161 [kt])
take-off decision speed (V1) : 297 [km/u] (160 [kt])
take-off rotation speed (VR) : 300 [km/u] (162 [kt])
lift-off speed (VLOF) : 329 [km/u] (178 [kt]) at pitch angle : 9.7 [°]
Martinair B767-31AER © bvdz
take-off safety speed (V2) : 332 [km/u] (179 [kt])
flap retraction speed (V3) at 500m (OW loaded : 181464 [kg]): 366 [km/u] (198 [kt])
steady initial climb speed (V4) : 358 [km/u] (193 [kt])
climb speed (to FL150 with 63 [%] power) : 544 [km/hr] (294 [kt])
max. endurance speed (Vbe): 445 [km/u] min. fuel/hr : 4971 [kg/hr] at height : 2743 [m]
max. range speed (Vbr): 883 [km/u] (0.82 [mach]) min. fuel consumption : 6.50 [kg/km] at
cruise height : 10058 [m]
max. cruising speed : 885 [km/hr] (478 [kt]) at 10668 [m] (power:27 [%])
max. operational speed (Mmo) : 940 [km/hr] (Mach 0.86 ) at 9000 [m] (power:34 [%])
airflow at cruise speed per engine : 418.7 [kg/s]
speed of thrust jet : 1497 [km/hr]
initial descent speed 10000 - 7315 [m]: Mach 0.72
descent speed 7315 - 3048 [m]: 537 [km/u] (290 [kt])
approach speed 3048 - 500 [m] (clean): 426 [km/u] (230 [kt])
minimum control speed (MCS) Vmca (clean): 378 [km/u] (204 [kt])
Arke Fly B767-383ER PH-AHQ c/n 24477, Schiphol June 2013.
stalling speed clean at 500 [m] height at Max.Landing Weight : 145149 [kg]): 315 [km/u] (170
[kt])
final approach speed (landing speed) at sea-level with full flaps VREF (max. landing weight):
269 [km/u] (145 [kt])
ICAO Aircraft Approach Category (APC) : D
stalling speed at sea-level with full flaps VSO (max. landing weight): 207 [km/u] (112 [kt]
rate of climb at sea-level ROC (loaded, 63 % power) : 960 [m/min]
rate of climb at sea-level ROC (loaded, 75 % power) : 1327 [m/min]
rate of climb at 1000 [m] with 1 engine out (PUF/MTOW, 92 % power on remaining engines)
: 312 [m/min]
rate of descent from FL240 to FL100 (7315m > 3048m): 914 [m/min] (2999 [ft/min])
rate of descent during approach with landing gear extended, with use of spoilers: 457 [m/min] (8 [m/s])
calculation : *9* (regarding various performances)
ICAO Aerodrome Reference Code : 4D
Brake kinetic energy capacity : 3199 [KW]
Take-off field length at MTOW 186880kg (412000 lb) standard day, sea-level : 8300ft > 2530m
FAR TO runway length (TOFL) requirement at TOW 186880 [kg] standard day at SL (PUF after V1): 2712 [m]
Take-off flap setting : 20 [° ]
Martinair B767-31AER PH-MCG c/n 24428 landing at Schiphol © bvdz
+++ FAA certification landing distance : +++
landing weight : 145149 [kg], TE flap setting : 30 [°]
runway condition : dry , landing over 50ft (15m) at threshold at sea-level
without use of thrust reversers
Landing field length at MLW 145149kg (320000 lbs), standard day,30° flaps, sea-level, dry runway : 5500ft (1675m)
FAA approved landing field length at SL, dry runway : 1826 [m] (5992 [ft])
landing distance (C.A.R.) from 15 [m] at SL, wet runway: 2104 [m] (6904 [ft])
max. lift/drag ratio : 11.62 [ ]
climb to 5000 [m] with max payload : 4.82 [min]
climb to 10000 [m] with max payload : 14.83 [min]
descent time from 10000 [m] to 250 [m] : 24.33 [min]
max. ceiling fully loaded (mtow- 60 min.fuel): 181464 [kg] ) : 14400 [m]
ceiling limited by max. pressure differential 14475 [m]
max. theoretical ceiling (OWE + 60 min.fuel) : 17800 [m] with flying weight :95427 [kg]
calculation *10* (action radius & endurance)
range with max. payload: 8115 [km] with 43798.0 [kg] max. useful load (74.0 [%] fuel)*
range with high density pax: 11249 [km] with 279 passengers (98.9 [%] fuel)*
range with typical two-class pax: 11484 [km] with 248 passengers (100.0 [%] fuel)*
Range with max paylaod : 3925nm > 7270km
Range with max.fuel: 5950nm > 11020km
Ferry range : 7000nm > 12965km
range with max.fuel : 11390 [km] with 10 crew and 270 passengers and 100.0 [%] fuel*
ferry range (calculated): 12619 [km] with 2 crew and zero payload (100.0 [%] fuel)*
max range theoretically with additional fuel tanks total 125486 [litre] fuel : 16483 [km]*
* calculated ranges without fuel reserves
Available Seat Kilometres (ASK) : 3111498 [paskm]
useful load with range 1000km : 43798 [kg]
useful load with range 1000km : 279 passengers
production (theor.max load): 38761 [tonkm/hour]
production (useful load): 38761 [tonkm/hour]
production (passengers): 240087 [paskm/hour]
oil and fuel consumption per tonkm : 0.140 [kg]
calculation *11* (operating cost)
fuel cost per hour (6900 [litre]):4139 [eur] (35 [pax-km/litre fuel])
fuel cost per seat 1000km flight (271 [pax] 2-class seating): 17.24 [eur/1000PK]
oil cost per hour: 3 [eur]
A presentation of a new design of the uniform for flight attendants of Royal Flight was held at Sheremetyevo airport in front of Royal Flight 767-3W0(ER) VP-BRE. According to the designers, the uniform was made for flight attendants to feel most comfortable in any conditions. The key elements of the new image of flight attendants Royal Flight are elegance and practicality .
crew cost per hour : 1350 [eur]
list price 2024 : 207 [mln USD]
average flying hours in 1 year : 4110 [hours] technical life : 19 [year]
real average service life : 19 [years]
depreciation : 19 [years] to 10% residual value
financing interest per flying hour : 1131 [EUR]
write off per flying hour : 2197 [EUR]
mean time between engine failure (MTBF) : 19145 [hr]
approved for 120-min. ETOPS flights
can continue fly on 1 engine, low risk for emergency landing for PUF
workhours per day : 12.67 [hr]
average flight hours till crash : 22.76 [mln hr] (5538 service years)
safe flight hours till fatality : 103469 [hr] (25.2 service years)
reservation pax liability/flying hour : 1.25 [SDR*] (1.56 [eur])
insurance cost per hour : 42 [eur] insurance rate : 0.2 [%]
engine maintenance cost per hour : 3178.7 [eur]
wing maintenance cost per hour : 103.9 [eur]
fuselage maintenance cost per hour : 35.85 [eur]
tire life (time till worn out) : 88 [cycles]
maintenance cost per hour (excluding engines): 1478 [eur]
direct operating cost per hour: 13521 [eur], DOC per km : 15.72 [eur]
DOC per seat 1000km flight (271 [pax] 2-class seating): 56.32 [eur/1000PK]
DOC per seat 1000km flight (high density seating): 54.83 [eur/1000PK]
DOC per kg cargo for a 1000km flight : 0.35 [eur/kg] (= DOC/tonkm)
passenger service charge (depart at Schiphol): 11.34 [eur]
security service charge (depart at Schiphol): 10.08 [eur]
Royal Flight 767-3W0(ER) VP-BRE touching down at Antalya, Turkey, June 2018. This Russian airline was founded in 2013, it ceased operations in 2022
airport take-off fee / passenger : 4.61 [eur/pax]
airport landing fee / passenger : 4.61 [eur/pax]
retour ticket price 1000km trip : 191.31 [eur/pax]
price retour ticket Schiphol-Barcelona : 222.28 [eur/pax]
accidents with fatalities > see the accident file
Literature :
https://contentzone.eurocontrol.int/aircraftperformance/default.aspx?
https://www.boeing.com/commercial/airports/plan-manuals
rescue : https://www.boeing.com/commercial/airports/rescue-fire
Air International apr’94 page 202
Verkeersvliegtuigen page 88,89
Kijk feb’81, mei’83, jan’86
Luchtvaart feb’95 page 14 t/m 21
Jane’s all the world aircraft
confidence rating regarding source data : medium - all information is only available from news, social media or unofficial sources
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 15 December 2024 contact : info.aircraftinvestigation@gmail.com ac jetpax 2020.py python 3.7.4
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