McDonnell Douglas MD-80/MD-90
Jatkokehitelmä DC-9 lentokoneesta. Sivuperäsimen koosta johtuen suositellaan Gyron asentamista.
Moottori:
Turbiini 2 x 30N
Sähköpuhallin 2 x 85mm (MD-80) tai 2 x 105mm (MD-90)
Tekniset tiedot:
Versio. Kärkiväli: Pituus: pinta-ala: Paino:
MD-81/82/83/88 2060mm 2820mm 46,6dm2 8kg
MD-87 2060mm. 2490mm. 46,4dm2. 7kg
MD-90. 2060mm. 2910mm. 46,4dm2. 8kg
Sarja sisältää lasikuituiset muotoosat.
Lisäksi tarvitset Finnfoam ja balsalevyä
McDonnell Douglas MD-80/MD-90
Developed as an improved and enlarged variant of the DC-9 the MD-80’s first designation was DC-9 Super 80. Not only the fuselage had been stretched but also wings and tailplane were enlarged. More powerful engines required bigger nacelles. When production stopped in 1999 a total of 1191 had been built.
For the MD-90 more fuel-efficient engines were used and the fuselage had been stretched again. 116 MD-90s have been built between 1993 and 2000.
The fuselage in front of the wing is very long so it’s easy to get the correct centre of gravity despite the weight of the rear-mounted engines. Compared to the DC-9 the wing loading is lower for the MD-80. Because of the vertical stabilizer’s small size directional control is a problem in case of an engine failure. A gyro on rudder is therefore recommended.
Powerplant: Glow: two 7.5 cc (.45 cu.in.) engines
Turbine: twice 30 N (7 lbs.) thrust
Ducted Fan: diameter up to 85 mm (3.3’’) (MD-80)
diameter up to 105 mm (4.1’’) (MD-90)
