MCDONNELL DOUGLAS MD-81
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|Position||Both sides of rear fuselage|
|Landing gear||Tricycle retractable|
MCDONNELL DOUGLAS MD-81
Short to medium range airliner. A stretched and improved development of the DC-9 Family which first flew in the early 1980s.
The MD81 is the first of the generic MD-80 series which includes the MD-82 (more powerful engines), MCDONNELL DOUGLAS MD-83 (extra fuel and more efficient engines), and the MD-88 (MD-83 with EFIS flight deck).
|Wing span||32.78 m107.546 ft |
|Length||45.06 m147.835 ft |
|Height||9.02 m29.593 ft |
|Powerplant||The initial production version had the PW JT8D-209 (82 kN)|
Later build MD-81s had JT8D-217 and -219 engines.
|Engine model||Pratt & Whitney JT8D|
(to 5000 ft)
|MACH Climb||Cruise||Initial Descent
|V2 (IAS)||130 kts||IAS||160 kts||IAS||260 kts||IAS||260 kts||MACH||0.74||TAS||480 kts||MACH||0.76||IAS||250 kts||IAS||kts||Vapp (IAS)||125 kts|
|Distance||m||ROC||3000 ft/min||ROC||2600 ft/min||ROC||2200 ft/min||ROC||1500 ft/min||MACH||0.76||ROD||1000 ft/min||ROD||2300 ft/min||MCS||200 kts||Distance||m|
Accidents & Serious Incidents involving MD81
- B734 / MD81, en-route, Romford UK, 1996 (On 12 November 1996, a B737-400 descended below its assigned level in one of the holding patterns at London Heathrow in day IMC to within 100 feet vertically and between 680 and 820 metres horizontally of a MD-81 at its correct level, 1000 feet below. STCA prompted ATC to intervene and the 737 climbed back to its cleared level. Neither aircraft was fitted with TCAS 2 or saw the other visually.)
- MD81, Grenoble France, 2010 (On 5 February 2010, a McDonnell Douglas MD 81 being operated by SAS on a non scheduled passenger flight from Copenhagen to Grenoble carried out a normal ILS approach to runway 09 in dark night VMC conditions, but the touchdown was made with the aircraft at an excessive pitch angle and higher than normal rate of descent and a tail strike occurred. Serious damage was caused to the rear lower fuselage but none of the 131 occupants were injured and a normal taxi-in and disembarkation followed.)
- MD81, Kiruna Sweden, 1997 (A scheduled passenger flight from Stockholm Arlanda to Kiruna left the runway during the night landing at destination performed in a strong crosswind with normal visibility.)
- MD81, vicinity Chicago Midway, IL USA, 2008 (On 7 July 2008, a Mc Donnell Douglas MD81 being operated by Midwest Airlines, Inc. had just taken off in day visual flight conditions when increasing pitch could initially not be controlled. Later, control was regained but with “higher than normal” pitch control pressure required to control the aircraft - after en-route diversion the aircraft landed uneventfully.)
- MD81, vicinity Stockholm Arlanda Sweden, 1991 (On 27 December 1991, an MD-81 took off after airframe ground de/anti icing treatment but soon afterwards both engines began surging and both then failed. A successful crash landing with no fatalities was achieved four minutes after take off after the aircraft emerged from cloud approximately 900 feet above terrain. There was no post-crash fire. The Investigation found that undetected clear ice on the upper wing surfaces had been ingested into both engines during rotation and initiated engine surging. Without awareness of the aircraft's automated thrust increase system, the pilot response did not control the surging and both engines failed.)