The Airedale is the largest of the British Terriers. They weigh 25–30 kilograms (55–66 lb) and have a height at the withers of 58–61 centimetres (23–24 in) for dogs, with females slightly smaller.The American Kennel Club standard specifies a smaller dog. Larger Airedales, up to 55 kilograms (121 lb) can be found in North America. They are often called "Oorangs." This was the name of a kennel in Ohio in the early 1900s.
The Airedale has a medium-length black and tan coat with a harsh topcoat and a soft undercoat. They are an alert and energetic breed, "not aggressive but fearless." It has been claimed that the large "hunting" type or Oorang Airedales are more game than the smaller "show" type Airedales. The large type are usually used for big game hunting and as family guardians or as pets, but usually do poorly in AKC conformation shows. This larger type is also significantly more prone to Hip Dysplasia than the standard Airedales.
The Airedale can be used as a working dog and also as a hunting dog. Airedales exhibit some herding characteristics as well, and have a propensity to chase animals. They have no problem working with cattle and livestock. However, an Airedale that is not well trained will agitate and annoy the animals.
The Airedale Terrier, like most Terriers, has been bred to hunt independently. As a result, the dog is very intelligent, independent, strong-minded, stoic, and can sometimes be stubborn. If children and Airedale are both trained correctly, Airedales can be an excellent choice for a family dog. Airedales can do well with cats and other small animals, especially when they are raised with them.
Albert Payson Terhune wrote of the Airedale: "Among the mine-pits of the Aire, the various groups of miners each sought to develop a dog which could outfight and outhunt and outthink the other miner's dogs. Tests of the first-named virtues were made in inter-mine dog fights. Bit by bit, thus, an active, strong, heroic, compactly graceful and clever dog was evolved – the earliest true form of the Airedale.
He is swift, formidable, graceful, big of brain, an ideal chum and guard. ....To his master he is an adoring pal. To marauders he is a destructive lightning bolt."
The Airdale can become aggressive, especially if he is systematically trained for that. Even so, it is not generally easy to instill aggression. Airdales usually relate to the world around them "without a stone in the bosom", they are too honest and dignified. This is a real beauty of the Airdale Terrier - strong, brave, full of curiosity and with a positive attitude.
Data refer : http://en.wikipedia.org/wiki/Airedale_Terrier