Is 787 better than A350?
In a two-class configuration, the A350 can handle more passengers than the 787. Thus, if it’s the amount of passengers you can ferry, the A350 is the clear winner. However, if efficiency is point of concern, the 787 comes on top. The A350 definitely has the longer range, but the 787 simply utilises the fuel better.
Why do most aircrafts that fly above 10000 feet have pressurized cabin?
Pressurization becomes increasingly necessary at altitudes above 10,000 feet (3,000 m) above sea level to protect crew and passengers from the risk of a number of physiological problems caused by the low outside air pressure above that altitude.
Is the 787 or A350 better?
What is the difference between 777 and 787?
The biggest 777 variant measures over 242 long, whereas the biggest 787 variant measures just 186 feet long. Both the 777 and 787 series consist of relatively long narrow-body airplanes, but those in the former series are typically longer than those in the latter series.
How fast does an A350 fly?
Airbus A350-1000 vs Boeing 787-10
| Model | Airbus A350-1000 |
|---|---|
| Speed (Cruise + Max) | Cruise: Mach 0.85 (488 kn; 903 km/h) Max: Mach 0.89 (513 kn; 950 km/h) |
| Range | 15,600 km / 8,400 nmi |
| Takeoff (MTOW, SL, ISA) | 2,600 m (8,500 ft) |
| Service ceiling | 41,450 ft (12,630 m) |
Why does the Boeing 787 use cabin air?
Boeing is moving to a bleedless system with the 787 Dreamliner and GEnx engines. In the past engine bleed air has been used extensively for ECS (Environment Control System) e.g. cabin pressurization and air conditioning, as well as anti and de-icing, ozone removal and many other uses. Nevertheless Boeing firmly believes…
Why does the 787 have so much drag?
As air passes over the wings and tail of an aircraft, at some point, the smooth flow of air breaks away from the surface and becomes turbulent. This turbulent air creates drag, slowing the aircraft down, requiring more power from the engines to drive it forwards. The more power needed from the engines, the more fuel is needed.
What are the features of the 787 Dreamliner?
The 787-9 is the first aircraft to be fitted with hybrid laminar flow control (HLFC), which is a feature of the tail-fin and the horizontal stabilizer beneath it. By using a special suction system, the air flowing over these surfaces remains in a smooth parallel flow for much longer, greatly reducing the drag created.
How are the air conditioners on a Dreamliner?
From here, the air is fed to four electrically powered Cabin Air Compressors (CACs). Here, it is pressurized and sent to two air conditioning packs — L Pack and R Pack in the diagram below. The packs are responsible for conditioning the air to a certain temperature and humidity and then sending it toward the cabin.