Knowledge about military technology of the Viking Age (end of 8th- to mid-11th-century Europe) is based on relatively sparse archaeological finds, pictorial representation, and to some extent on the accounts in the Norse sagas and laws recorded in the 13th century.
According to custom, all free Norse men were required to own weapons, as well as permitted to carry them at all times. Indeed, the Hávamál, purported to be sage advice given by Odin, states "Don't leave your weapons lying about behind your back in a field; you never know when you may need all of sudden your spear."
As war was the most prestigious activity in Viking Age Scandinavia, beautifully finished weapons were an important way for a warrior to display his wealth and status. A wealthy Viking would likely have a complete ensemble of a spear, a wooden shield, and either a battle axe or a sword. The very richest might have a helmet; other armour is thought to have been limited to the nobility and their professional warriors. The average farmer was likely limited to a spear, shield, and perhaps a common axe or a large knife or seax. Some would also bring their hunting bows (mostly long bow or flat bow) to use in the opening stages of battle.
The bow and arrow was used both for hunting and in battle. They were made from yew, ash or elm. The draw force of a 10th-century bow may have reached some 90 pounds force (400 N) or more, resulting in an effective range of at least 200 metres (660 ft) depending on the weight of the arrow. A yew bow found at Viking Hedeby, which probably was a full-fledged war bow, had a draw force of well over 100 pounds. Replica bows using the original dimensions have been measured to between 100–130 pounds (45–59 kg) draw weight. A unit of length used in the Viking Age called a bow shot corresponded to what was later measured as 227.5 metres (746 ft). Illustrations from the time show bows being pulled back to the chest, rather than to the corner of the mouth or under the chin, as is common today.