Answer : Refer to the three-view drawing of this airplane in Jane's all the world's
aircraft (Ref.1.21) and also on internet. Notice the area ruled fuselage; refer ...
Airplane design(Aerodynamic) Chapter-2
Prof. E.G. Tulapurkara
Chapter 2 Exercises 2.1 Dassault Mirage 2000 has the following approximate features. Draw a neat three-view sketch of the airplane. Type
: Single seat multi-role fighter
Wing
: Low wing, cropped delta planform (ct 0.1 cr); area 41.0 m2; span 9.13 m, leading edge sweep of inboard section = 58o ; no dihedral; the leading edge of the wing, extended up-to fuselage centre line is roughly at 4.4 m from nose; leading edge slat ; flaps ; ailerons from tip to about semi-span.
Fuselage
: Pointed nose section of length 2.75 m and base diameter of roughly 0.8 m; length of fuselage = 14.65 m; maximum height (at canopy) 1.5 m ; diameter at rear end 0.9 m.
Engine
: One engine in rear fuselage; side intake
Empennage: No horizontal tail. Vertical tail of height 2.75 m above fuselage ; chord where V.tail joins fuselage 3.9m ; the leading edge of this chord is at roughly at 10.4 m behind the nose of fuselage ; tip chord 1.15 m ; quarter chord sweep 400.
[ Answer : Refer to the three-view drawing of this airplane in Jane’s all the world’s aircraft (Ref.1.21) and also on internet. Notice the area ruled fuselage; refer section 7.2 for area ruling.] 2.2
Lear Jet 45 airplane has the following approximate features.
Type
: Business jet
Wing
: Low wing; area = 28.95 m2 ; span = 14.57 m; taper ratio 0.33; c 13.5 ; Dihedral 3 ; the leading edge of the wing, 4
extended up to fuselage centre line, is roughly at 8.1 m from nose; winglets at tips.
Dept. of Aerospace Engg., Indian Institute of Technology, Madras
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Airplane design(Aerodynamic) Chapter-2 Fuselage
Prof. E.G. Tulapurkara
: Length 17.3 m; rounded nose section of length roughly 2.2 m and base diameter of 1.1 m; cockpit portion of length 1.7 m; cylindrical portion of fuselage of length 6.7 m; tail cone of length 6.7 m; Height and width of cylindrical portion 1.8 m.
Engines
: Two engines mounted on rear fuselage ; nacelle length 2.7 m; maximum diameter 1.1 m; front face of nacelle is roughly 10.9 m behind the nose; top of the nacelle is at a height roughly equal to the height of the top portion of the fuselage.
H.Tail
: T-tail; area(Sht) 7.0 m2, span 5.4 m; λ 0.45 , c 25 ; 4
elevator area 30% of Sht the leading edge of the H.tail, extended upto the fuselage centre line, is roughly at 16.5 m from nose. V. tail
: Area (Svt) 4.1 m; height above fuselage 2.0 m; λ 0.8 , c 35 ; rudder area 0.25 Svt ; leading edge of the chord of 4
V.tail where it (V.tail) meets the fuselage is roughly at 15.0 m from nose. Make a neat three-view sketch of the airplane. [Answer: Refer to the three view drawing in Jane’s all the world’s aircraft, (Ref.1.21), and also on internet]
2.3 An airplane has the following features. Gross Weight: 160,000 N Wing loading : 3760 N / m2 Wing
: A = 8, λ = 0.3, = 250
Horizontal tail : Sht / S = 0.2, A = 5, λ = 0.5, = 300 Obtain the root chords of the wing and the tail. [Answer: (cr)wing = 3.548 m, (cr)tail = 1.74 m ]
Dept. of Aerospace Engg., Indian Institute of Technology, Madras
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