Pay Load calculations.doc
2
Pay Load calculations MTOW = Max. take off wt. MLW = Max Landing Wt. MZFW = Max. Zero F ue l Wt. ( Empt y wt o f a/ ! max pay load" #EW = #a$i Empty Wt. (Empty wt of a/" #OW = #a$i Wt! %alley & e'uipm ent. (a/ wt le$$ fuel & payload" To alulate payload payload u$ing limitation$ of MTOW MLW & #OW. MTOW MLW MZFW !#OF !)LL F*EL +++++++ ! ,ay Load +++++++++ TOW - TOW TOW ++++++++ ++++++++++ T0e lowe$t of t0e a1o2e t0ree i$ atual take off wt. e.g.3 MTOW = 4-555 kg MZFW = 5555 kg )/ wt le$$ fuel & payload(#OW" = 555 kg %round 6peed = 475 kt$ 8i$tane = 57 9m$ Fuel :on$umption = 555 kg/0r Fuel ;e$er2e = 755 kg MLW = 555 kg :alulate Max payload< 6ol Fue l ;e'uir ed (#u rn off Fue l" = 57 /475 = 4.7 > 555 kg = ?555 kg ;e$er2e = 755kg Total Fuel = --755kg MTOW MLW MZFW 4-555 555 5555 #ur n off ?555 --755 41000 4555 4-755 )tual Take off Wt = 4-555 kg ,ayload = 4-555( 55 5! --755" = @755 kg )n$
description
Pay Load calculations.doc
Transcript of Pay Load calculations.doc
Pay Load calculations
Pay Load calculations
MTOW = Max. take off wt.
MLW
= Max Landing Wt.
MZFW= Max. Zero Fuel Wt. (Empty wt of a/c+ max payload)
BEW
= Basic Empty Wt. (Empty wt of a/c)
BOW
= Basic Wt+ Galley & equipment. (a/c wt less fuel & payload)
To calculate payload payload using limitations of MTOW MLW & BOW.
MTOW
MLW
MZFW
-------
+BOF
+ALL FUEL
_______
_______
+ Pay Load
_________
TOW 1
TOW 2
TOW 3
________
______
__________
The lowest of the above three is actual take off wt.
e.g.,
MTOW
= 41000 kg
MZFW
= 30000 kg
A/c wt less fuel & payload(BOW) = 23000 kg
Ground Speed
= 450 kts
Distance
= 2025 Nms
Fuel Consumption
= 2000 kg/hr
Fuel Reserve
= 2500 kgMLW
= 33000 kg
Calculate Max payload?
Sol: Fuel Required (Burn off Fuel)= 2025/450 = 4.5 * 2000kg = 9000kg
Reserve
= 2500kg
Total Fuel
= 11500kg
MTOW
MLW
MZFW
41000
33000
30000
------
Burn off 9000
11500
41000
42000
41500
Actual Take off Wt = 41000 kg
Payload = 41000-( 23000+ 11500) = 6500 kg Ans
