mustangdriver wrote:
I have worked on Airbus, Boeing, and Douglas aircraft, and I can say that the Boeing and Douglas aircraft were better. It was pretty much a broad feeling at the facility I worked at.
I'm not bashing Airbus with the following. I think it just highlights the difference in design philosophy between the aircraft.
The refueling facilities for the aircraft are what I like using as an example because it's "night and day" in design between Airbus and Boeing & MacDac. A great example is the difference between the A320-family and 737NGs. While a 737 can be fueled for a typical flight in about 10 minutes, it takes 20-25 to fuel an Airbus. Why? Because while the 737NG uses 2 1/2-inch lines for fueling, Airbus uses 1-inch lines. Also, the original location for
all Airbus fuel panels was on the fuselage either on the wing-body fairing (A330/340), landing gear fairing (A32x), or A/C Pack fairing (A300). This meant you had to go up in the lift to attach the hose (wing's nearly 15 feet in the air afterall) then go back down and fuel from the ground. Kinda hard to watch the fuel hose and make sure it's not leaking when you're looking the other way watching the gauges. On the aircraft that do have a fuel panel on the wing (it was an option starting on the A32x and was eventually added to the A300/A310 series, but I haven't seen any A330/340 aircraft with it), it's outboard of the fuel connections and outboard by several feet, necessitating you either setting up the lift to have the connection on one side so you can be under the panel on the other or having to lean out over the railing of the lift to reach the panel. On the 737s (and all Boeing and McDonnell Douglas) products the fuel panel is within 3 or 4 inches of the fuel connections. If the aircraft is equipped with 2 fuel connections on one side of the plane (most of the larger Boeings do) they stradle the fuel panel.
The worst part of their fueling system? The doors. The fuel panel door on all but the A330/340 are unsupported and double hinged so they can be moved fully forward to lay flat against the underside of the leading edge of the wing. They have no mechanism to automatically hold them forward on the A300 and A320 (they have a support you unfold from the door and put into a slot) and the A330/340 underwing door (for access to the fuel connections) uses a spring to hold it out of the way if the airline chooses that option. The problem? If the door comes undone in flight, it'll flap forward and damage the leading edge. Frontier had this happen in spectacular fashion and ended up with an entire leading edge slat section (about 4 feet wide) depart the aircraft on approach into Kansas City, MO. The reason the door came open? Airbus uses a push-button friction lock system that if not EXTREMELY tight can shake loose in flight. Boeing uses a "clip" type lock on most panels and MacDac uses a "push-button" system like Airbus, but their panels have one distinct difference- they're single hinged so there is no way for them to come forward enough to interfere with the operation of the slats or hit them without bending the panel quite severely and usually that will cause the door to fail and separate from the aircraft instead of what happened with the Frontier aircraft.