Is the Boeing 777 the Widest Single-Deck Widebody Aircraft?

One question that often arises in the world of commercial aviation is whether the Boeing 777 is the widest single-deck widebody aircraft available. This article will explore this question by comparing the fuselage dimensions of the Boeing 777 to its contemporaries, including the Airbus A350 and the Boeing 747.

The Boeing 777: A Fuel-Efficient Option

The Boeing 777 was designed to be a more fuel-efficient alternative for airlines serving major trunk routes that traditionally would have been flown with the Boeing 747 or the Airbus A380. With two engines instead of four, the 777 can significantly reduce fuel consumption, making it a popular choice for air carriers.

Comparing Fuselage Dimensions

When comparing the fuselage dimensions of these aircraft, it becomes clear that the Boeing 777 is indeed the widest single-deck widebody aircraft. Specifically, the 777 has an outside diameter of 6.2 meters (20.3 feet) and an inside diameter of 5.87 meters (19.3 feet). This makes it significantly larger than contemporary single-deck widebody aircraft like the Airbus A350 and the Boeing 787.

The Airbus A350, a direct competitor to the Boeing 777, has an outside diameter of 5.97 meters (19.6 feet) and an inside diameter of 5.61 meters (18.4 feet). While the A350 is also a wide aircraft, its dimensions are notably smaller than those of the 777, confirming that the 777 maintains its status as the widest single-deck widebody aircraft.

The Boeing 747, an older aircraft model, is larger than the 777 but falls into the category of double-deck widebody aircraft. The 777, being single-deck, has a more spacious interior, making it ideal for routes requiring a high level of passenger comfort.

Applications and Flexibility

The 777 is designed to serve "fat routes," where a large number of passengers and a wide range of cargo can be accommodated without the need for a double-deck design. Its wide fuselage allows for a greater seating capacity and more cargo space, making it a versatile option for airlines. This versatility has contributed to the Boeing 777 becoming a cornerstone of many air carriers' fleets.

In contrast, the Boeing 787 and Airbus A350 are designed for "thin long" routes. These aircraft are optimized for routes where the maximum passenger capacity of the 777, 747, or A380 is not required. Their smaller dimensions make them more fuel-efficient and better suited for longer flights with fewer passengers.

Conclusion

In summary, the Boeing 777 is indeed the widest single-deck widebody passenger aircraft, with its outside diameter measuring 6.2 meters (20.3 feet) and inside diameter at 5.87 meters (19.3 feet). This wide fuselage design allows the 777 to excel in serving high-capacity routes, distinguishing it from other single-deck widebody aircraft like the Airbus A350. Whether you are an aviation enthusiast or a frequent traveler, understanding the dimensions and applications of these aircraft can provide valuable insights into the world of commercial aviation.