The McDonnell Douglas MD-80 series is a family of single-aisle, narrow-body commercial jet airliners manufactured by McDonnell Douglas. The MD-80 was designed as a stretched derivative of the DC-9. The MD-81 is a member of the MD-80 family, and it is the stretched version of the MD-80.
The MD-81 is a popular aircraft, and it has been used by many airlines around the world. The aircraft has a good safety record, and it is known for its reliability and efficiency. The MD-81 is also a relatively quiet aircraft, which makes it a good choice for flights in noise-sensitive areas.
The MD-81 is a versatile aircraft that can be used for a variety of missions. The aircraft can be used for short-haul flights, and it can also be used for longer-haul flights with a stop for refueling. The MD-81 is also a good choice for charter flights, and it is often used for corporate travel.
MCDONNELL DOUGLAS MD-81 Specs
The McDonnell Douglas MD-81 is a single-aisle, narrow-body commercial jet airliner. It is a stretched version of the MD-80, and it is powered by two Pratt & Whitney JT8D-200 series turbofan engines. The MD-81 has a range of 1,800 nautical miles (3,300 km) and a maximum payload of 37,000 pounds (17,000 kg).
- Length: 147 ft 9 in (45.09 m)
- Wingspan: 103 ft 4 in (31.50 m)
- Height: 30 ft 1 in (9.17 m)
- Maximum takeoff weight: 140,000 lb (63,503 kg)
- Cruising speed: 530 mph (853 km/h)
These specifications make the MD-81 a versatile aircraft that is well-suited for a variety of missions. It can be used for short-haul flights, and it can also be used for longer-haul flights with a stop for refueling. The MD-81 is also a good choice for charter flights, and it is often used for corporate travel.
The MD-81 is a safe and reliable aircraft, and it has a good safety record. The aircraft is also relatively quiet, which makes it a good choice for flights in noise-sensitive areas.
Length
The length of the McDonnell Douglas MD-81 is 147 ft 9 in (45.09 m). This makes it a relatively small aircraft, which gives it several advantages.
One advantage is that the MD-81 can operate out of smaller airports. This makes it a good choice for regional airlines that serve smaller communities. Another advantage is that the MD-81 is more fuel-efficient than larger aircraft. This is because it has a smaller fuselage and wings, which reduces drag.
However, the length of the MD-81 also has some disadvantages. One disadvantage is that it can only carry a limited number of passengers. The MD-81 has a maximum capacity of 172 passengers, while larger aircraft can carry up to 500 passengers. Another disadvantage is that the MD-81 has a limited range. The MD-81 has a range of 1,800 nautical miles (3,300 km), while larger aircraft can have a range of over 5,000 nautical miles (9,300 km).
Overall, the length of the McDonnell Douglas MD-81 is a compromise between size and efficiency. The MD-81 is a relatively small aircraft, which gives it several advantages. However, it also has some disadvantages, such as a limited passenger capacity and range.
Wingspan
The wingspan of the McDonnell Douglas MD-81 is 103 ft 4 in (31.50 m). This is a relatively large wingspan for an aircraft of this size, which gives it several advantages.
One advantage is that the large wingspan gives the MD-81 a lot of lift. This allows the aircraft to take off and land at slower speeds, which makes it a good choice for short-haul flights. Another advantage is that the large wingspan gives the MD-81 a lot of stability. This makes it a good choice for flying in turbulent conditions.
However, the large wingspan also has some disadvantages. One disadvantage is that it increases the drag on the aircraft. This means that the MD-81 uses more fuel than aircraft with smaller wingspans. Another disadvantage is that the large wingspan makes the aircraft more difficult to maneuver. This can be a problem when the aircraft is flying in strong winds or when it is making a landing in a confined space.
Overall, the wingspan of the McDonnell Douglas MD-81 is a compromise between lift, stability, and drag. The large wingspan gives the MD-81 a lot of lift and stability, which makes it a good choice for short-haul flights and flying in turbulent conditions. However, the large wingspan also increases the drag on the aircraft and makes it more difficult to maneuver.
Height
The height of the McDonnell Douglas MD-81 is 30 ft 1 in (9.17 m). This is a relatively low height for an aircraft of this size, which gives it several advantages.
One advantage is that the MD-81 can operate out of smaller airports. This makes it a good choice for regional airlines that serve smaller communities. Another advantage is that the MD-81 is easier to load and unload than taller aircraft. This can save time and money for airlines.
However, the height of the MD-81 also has some disadvantages. One disadvantage is that it can be difficult for passengers to board and exit the aircraft. This can be a problem for passengers with disabilities or for passengers who are carrying a lot of luggage. Another disadvantage is that the MD-81 is more susceptible to crosswinds than taller aircraft. This can make it more difficult to land the aircraft in strong winds.
Overall, the height of the McDonnell Douglas MD-81 is a compromise between ease of operation and passenger comfort. The low height of the MD-81 makes it easier to operate out of smaller airports and easier to load and unload. However, the low height of the MD-81 can also make it more difficult for passengers to board and exit the aircraft and more susceptible to crosswinds.
Maximum takeoff weight
The maximum takeoff weight (MTOW) of an aircraft is the maximum weight at which it is certified to take off. The MTOW is determined by a number of factors, including the aircraft’s structural strength, engine power, and landing gear design.
- Structural strength: The MTOW is limited by the structural strength of the aircraft. The aircraft must be able to withstand the forces of takeoff, climb, and landing without exceeding its design limits.
- Engine power: The MTOW is also limited by the power of the aircraft’s engines. The engines must be able to provide enough thrust to accelerate the aircraft to its takeoff speed and climb to a safe altitude.
- Landing gear design: The MTOW is also limited by the design of the aircraft’s landing gear. The landing gear must be able to support the weight of the aircraft at takeoff and landing without collapsing.
The MTOW of the McDonnell Douglas MD-81 is 140,000 lb (63,503 kg). This MTOW allows the MD-81 to carry a maximum payload of 37,000 lb (17,000 kg). The MD-81’s MTOW is relatively high for an aircraft of its size, which gives it the ability to carry a large payload over long distances.
Cruising speed
The cruising speed of the McDonnell Douglas MD-81 is 530 mph (853 km/h). This speed is achieved at an altitude of 35,000 feet (10,668 meters). The MD-81’s cruising speed is relatively high for an aircraft of its size, which gives it several advantages.
- Reduced travel time: The MD-81’s high cruising speed allows it to travel between cities more quickly than slower aircraft. This can be a major advantage for passengers on long-haul flights.
- Increased efficiency: The MD-81’s high cruising speed also makes it more efficient than slower aircraft. This is because the MD-81 can spend less time in the air, which reduces fuel consumption.
- Improved on-time performance: The MD-81’s high cruising speed helps it to avoid delays caused by weather or other factors. This can help airlines to improve their on-time performance.
Overall, the McDonnell Douglas MD-81’s cruising speed of 530 mph (853 km/h) is a major advantage for the aircraft. This speed gives the MD-81 several benefits, including reduced travel time, increased efficiency, and improved on-time performance.
FAQs about McDonnell Douglas MD-81 Specs
This section addresses frequently asked questions about the McDonnell Douglas MD-81’s specifications. These questions and answers provide valuable insights into the aircraft’s capabilities, performance, and design.
Question 1: What is the MD-81’s maximum takeoff weight?
The MD-81 has a maximum takeoff weight of 140,000 lb (63,503 kg). This allows it to carry a maximum payload of 37,000 lb (17,000 kg).
Question 2: What is the MD-81’s cruising speed?
The MD-81’s cruising speed is 530 mph (853 km/h) at an altitude of 35,000 feet (10,668 meters).
Question 3: What is the MD-81’s range?
The MD-81 has a range of 1,800 nautical miles (3,300 km). This range allows the aircraft to operate on short-haul and medium-haul routes.
Question 4: How many passengers can the MD-81 carry?
The MD-81 has a maximum seating capacity of 172 passengers. The aircraft’s cabin is typically configured with two classes of service: first class and economy class.
Question 5: What are the MD-81’s dimensions?
The MD-81 has a length of 147 ft 9 in (45.09 m), a wingspan of 103 ft 4 in (31.50 m), and a height of 30 ft 1 in (9.17 m).
Question 6: What type of engines does the MD-81 use?
The MD-81 is powered by two Pratt & Whitney JT8D-200 series turbofan engines. These engines provide the aircraft with excellent performance and reliability.
These FAQs provide a comprehensive overview of the McDonnell Douglas MD-81’s specifications. These specifications play a crucial role in determining the aircraft’s capabilities and performance, making it a reliable choice for airlines worldwide.
Transition to the next article section: To learn more about the MD-81’s performance and operational history, continue reading the article below.
Tips on Optimizing McDonnell Douglas MD-81 Specs
Understanding the specifications of the McDonnell Douglas MD-81 is crucial for maximizing its performance and ensuring efficient operation. Here are some valuable tips to consider:
Tip 1: Enhance Aerodynamic Efficiency
By maintaining a clean aircraft exterior, minimizing drag, and optimizing wing configuration, you can significantly improve the MD-81’s fuel efficiency and overall performance.
Tip 2: Optimize Engine Performance
Regular maintenance, proper engine care, and monitoring engine parameters are essential for ensuring optimal engine performance, leading to improved thrust, reduced fuel consumption, and enhanced reliability.
Tip 3: Maximize Payload Capacity
Strategic weight distribution, careful cargo loading, and optimizing seating arrangements can help increase the MD-81’s payload capacity, allowing for more efficient cargo or passenger transportation.
Tip 4: Enhance Cockpit Ergonomics
Customizing the cockpit layout, utilizing advanced avionics, and ensuring pilot comfort can significantly improve situational awareness, reduce pilot fatigue, and enhance overall flight safety.
Tip 5: Leverage Advanced Maintenance Techniques
Implementing predictive maintenance, utilizing data analytics, and employing modern maintenance technologies can help minimize downtime, optimize maintenance costs, and ensure the MD-81’s long-term reliability and performance.
Tip 6: Utilize Flight Planning Software
Optimizing flight plans, considering wind patterns, and selecting efficient routes can reduce fuel consumption, minimize flight time, and enhance overall operational efficiency.
Tip 7: Train and Educate Crew Members
Providing comprehensive training and education to pilots, cabin crew, and maintenance personnel is vital for maximizing the MD-81’s performance, ensuring safety, and enhancing overall operational effectiveness.
Tip 8: Monitor and Analyze Flight Data
Regularly reviewing flight data, analyzing performance parameters, and implementing continuous improvement measures can help identify areas for optimization, leading to enhanced efficiency and reduced operating costs.
By implementing these tips, airlines and operators can optimize the McDonnell Douglas MD-81’s performance, enhance its efficiency, and maximize its operational capabilities.
These tips provide valuable insights into leveraging the MD-81’s specifications for optimal performance. By carefully considering these recommendations, you can unlock the full potential of this aircraft and ensure its continued success in the aviation industry.
Conclusion
The McDonnell Douglas MD-81, renowned for its efficiency, reliability, and versatility, stands as a testament to the advancements in aviation engineering. Its meticulously crafted specifications, including its optimal dimensions, powerful engines, and advanced avionics, enable it to excel in various operational scenarios.
Throughout this exploration of the MD-81’s specifications, we have delved into the intricate details that contribute to its exceptional performance. From its aerodynamic design to its robust engine configuration and advanced flight systems, each aspect has been carefully engineered to maximize efficiency, enhance safety, and provide a comfortable travel experience.
As the aviation industry continues to evolve, the MD-81’s specifications remain a benchmark for excellence. Its adaptability and versatility ensure its continued relevance in the years to come, meeting the ever-changing demands of the commercial aviation landscape.