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Submitted byMUKESH K
(720811101025)NAGARAJAN G
(720811101026)NARAYANAMOORTHY M
(720811101027)NAVEENKUMAR T
(720811101029)
THIRD YEAR, B.EAERONAUTICAL ENGINEERING
HINDUSTHAN INSTITUTE OF
TECHNOLOGY
COIMBATORE - 641 032ANNA UNIVERSITY CHENNAI -
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Classification of AircraftsDesign ProcessDesign Proposal of HP-42 MRTTAerial RefuelingComparative Study and Preliminary Design
DataPreliminary Weight EstimationAirfoil Selection and Main Wing DesignFuselage DesignLanding Gear DesignTail DesignEngine Selection3-View Diagram
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Students view
of design
The realdesign process
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Aerial refueling, also referred to as air
refueling, in-flight refueling(IFR), air-to-
air refueling(AAR), and tanking, is the
process of transferring fuel from oneaircraft (the tanker) to another (the
receiver) during flight.
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Aspect Ratio
Wing Span
Wing Area
Thickness to
chord Ratio
Sweep BackAngle
Height
Fuselage
Length
Empty Mass
Maximum
Take-off Mass
Maximum
Landing Mass
Thrust to
Weight Ratio Wing Loading
Number of
Engines
Thrust per
Engine
Fuel
Economy Maximum
Speed
Cruise
Speed
Absolute
Ceiling
Service
Ceiling
Range
Ferry
Range Endurance
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General characteristics: Crew:6 (2 pilots, 3rd optional, 3
loadmasters)
Capacity (Max. Payload):
1,58,620 kg
Aspect Ratio: 7.75
Fuselage Length:58.33 m Height:16.25 m
Wingspan:65 m
Wing Area:550 sq. m
Thickness-to-Chord Ratio:
13.79 % of chord
Sweep Back Angle: 24.25 (at
25% of chord)
Empty Mass:1,66,538 kg
Maximum Takeoff Mass:
3,64,706 kg
Maximum Landing Mass:
2,86,363 kg
Powerplant:4 232.6 kN each
Fuel Economy:0.0615 km/ltr
Performance:Maximum Speed: 892.3 km/hr,
Mach 0.835
Cruising speed:768.75 km/hr,
Mach 0.72
Absolute Ceiling: 11,500 m
Service Ceiling:10,000 m
Range:9,273 km (maximum long
range cruise speed), 4,885.15 km
(with full load)
Ferry range:11,125 km
Endurance: 14.375 hrs
Loiter time:35 minutes
Tactical takeoff distance:3,562.5m (ISA, MSL)
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ENGINE START-UP
AND TAKE-OFF
CLIMB AND
ACCELERATE TO
CRUISE
CONDITIONS
CRUISE OUT TO
DESTINATION
LOITER LANDING
Representative flight plan for
the Tanker aircraft
Mass Initial Values
(Before Iteration)
Final Values (After
Iteration)
Maximum Take-Off
Mass
3,64,706 kg 5,44,475.4801 kg
Maximum Landing
Mass
2,86,363 kg 2,22,200.0969 kg
Empty Mass 1,66,538 kg 2,06,573.9696 kg
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SC(2)-0714 Supercritical airfoil
Max thickness 13.9%
at 37% chord
Max camber 2.5% at
80% chord
Thickness (%) 13.925Camber (%) 1.507Trailing Edge Angle (%) 16.689Lower Surface Flatness 9.397Leading Edge Radius (%) 2.937Maximum Lift (CL) 1.442Maximum Lift Angle-of-Attack (deg) 15Maximum Lift-to-drag (L/D) 37.272Lift at Maximum Lift-to-drag 1.181Angle-of-Attack for Maximum Lift-to-drag
(L/D)4.5
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overnose overside
17 35
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Nose Wheel (4
wheels)
Main Wheel (16
wheels)
Weight 13,611.887 kg 30,626.7457 kg
Diam
eter
32.6867 inches 42.1997 inches
Widt
h
10.0303 inches 14.8034 inches
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NACA 0012
Max thickness 12%
at 30% chord
Max camber 0% at
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GEnx
Length 4.69m
Diamet
er
2.82
m
T/Wratio
5:1
Thrust 284
kN
Bypass 9.6
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General characteristics: Type : Turbofan Length : 4.69 m (184.7 in) Diameter : 2.82 m (111.1 in) Dry weight : 5,816 kg (12,822 lb)
Components: Compressor : Axial, 1 stage fan, 4 stage low
pressure compressor, 10 stage high pressurecompressor
Combustors : Annular Turbine : Axial, 2 stage high pressure turbine, 7
stage low pressure turbine
Performance: Maximum thrust : 284 kN (63,800 lbf) Overall pressure ratio : 41 Thrust-to-weight ratio : approx 5:1
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General characteristics:Crew:6 (2 pilots, 3rd optional, 3
loadmasters)
Capacity (Max. Payload):1,58,620
kg (Disposable fuel 1,50,000kg/
Non-fuel 8,620kg)
Aspect Ratio: 7.75Fuselage Length:58.33 m
Height:16.25 m
Wingspan:65.2878 m
Wing Area:550 sq. m
Thickness-to-Chord Ratio: 37 % of
chordLeading Edge Sweep Back Angle:
27.56
Empty Mass:2,06,573.9696 kg
Maximum Takeoff Mass:
5,44,475.4801 kg
Maximum Landing Mass:
Fuel Transfer Rate:8400 ltrs/min
Powerplant:4 232.6 kN each
Fuel Economy:0.0615 km/ltr
Performance:
Maximum Speed: 892.3 km/hr,Mach 0.835
Cruising speed:768.75 km/hr,
Mach 0.72
Absolute Ceiling: 13,716 m,
45,000 ft
Service Ceiling:10,668 m, 35,000
ft
Range:9,273 km (maximum long
range cruise speed), 4,885.15 km
(with full load)
Ferry range:11,125 km
Endurance: 14.375 hrs
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