Airbus

The A 320 has a baggage capacity of 1,340 cubic feet. That's about the same as a Boeing 737-400.

A propeller is almost exactly similar to an airplane wing. A propeller has the same general shape as a wing, but it is slightly distorted to obtain maximum efficiency. Also, like a wing, many propellers change shape to perform better in different areas (eg takeoff, climb, fuel efficiency, etc.). The only two major differences are 1. the size and 2. propellers spin.

Yes, there is.

An Airbus A380 has 853 passenger seats. These seats are actually used by passengers only if the whole plane has Economy Class configuration. If the plane has a regular three Class configuration, then only 555 will board the plane maximum.

It is to help them at night when they land

Actually those strobe light are to make all aircraft more visible at all times, especially to other aircraft flying near them. They do nothing at all to help landing as the pilot can not see these strobe lights. Every larger aircraft has very bright retractable lights specifically to land with.

Helicopters and some STOL aircraft can stand still in the air. If an actual winged aircraft does this it will 'stall' because air pressure is not moving over the wings.

Air France has 41 Airbus 319's

The 'airframe' is the structural skeleton of an aircraft, its main wing beams, it's bulkheads and all other frame parts.

101 built as of March 2013

Yes, many Airbus aircraft are in the category of heavy aircraft.

The A 380's max speed is Mach 0.89

or 587 mph,

coefficient of drag in 0 lift

The A330 has many variants of different weights and engines. Most cruise at around 900 km/hr.

30 in an all economy layout with the max number of seats, otherwise it depends on the airline

Typically between 120 and 140 knots (around 140 to 160 mph).

It depends on which airline it is flying for.

The Airbus A330 has 2 engines, 1 on each wing.

These engines can be:

General Electric CF6, Pratt & Whitney PW4000, and Rolls-Royce Trent 700.

The A 340 is a long-range four-engine wide-body commercial passenger jet. It can fly over 15,000 kms carrying up to 500 passengers in economy configuration.

The A340, along with the DC-10 and the MD-11, were designed to compete with the Boeing 747 on long-range, high-capacity routes. It was derived from the smaller, two-engined A300. The A340 was drawn up at a time when FAA restrictions on two-engine planes were much stricter. According to the FAA, two-engined planes had a higher chance of engine failure, simply because they had fewer engines. The logic was that, if two engines failed, the plane was screwed. The A340, DC-10, MD-11, and B747 all have more than two engines; if two engines fail, the plane can still fly. 3- and 4-engined planes were permitted to fly the longer routes that two-engined planes were, historically, forbidden from flying.

Later on, the FAA realized that both engines on a two-engine airliner were very unlikely to fail at cruise altitude. So they introduced ETOPS, which allowed two-engined aircraft such as the B767, B777, A300-600R, A310, and A330 to fly much longer routes than before, and this pretty much ruined the A340, DC-10, and MD-11. The MD-11 became a failure, partly because McDonnell Douglas had stubbornly refused to break their trijet tradition. The A340 failed to adequately compete with its intended rival the B747, which, with decades of history and reputation, as well as its higher capacity, is still the preferred choice of most airlines around the world (even though it is far less efficient than the A340). "Mini-jumbos" like the B777 were also preferred over the A340 due to higher fuel efficiency. Smaller variants of the A340 also suffered from internal competition by the A330, the two-engined little sister of the A340.

So as an answer to your question, an Airbus A340 is a long-range, wide-body, four-engined airliner designed to be immune to the restrictions of the FAA on two-engine airliners, and to compete with the aging B747. It wasn't a failure like the MD-11, but it certainly did not meet Airbus' expectations, because its market was undermined by rapidly improving twin-jet airliners such as the 767, 777, and A330. Production ended in 2011.

It's actually comparatively quiet, once they have climbed out of the airfield area you can hardly hear them.

The Airbus A380-800 has a maximum cruise speed of Mach 0.89 (945 km/h, 587 mph, 510 knots).

It sounds like you are referring to what is called flap track fairings. There are usually several of them on the underside of each wing, and taper to a point at the back. These are covers for the flap tracks- the mechanical mechanism that allows the flaps to extend and retract. Without them the flap components would be exposed and create drag.