Griffin is the co-founder of the William E. Colby Seminar on Intelligence, Military, and Diplomatic Affairs at Norwich University in Vermont, along with his friend, historian, and Patton biographer Colonel Carlo D'Este.
A Viking's height could be anywhere between 66 inches 1.67 meters and 69 inches 1.75 meters. The tall ones are said to be Vikings of higher stature since they are likely to have better nutrition and eat better diets compared to the common Viking warriors. The notion that Vikings were tall people may also be because people in some parts of Europe are relatively short. This may be the reason why they might consider Vikings as people with increased height. But compared Viking's height to today's people, they are considered as people with average height.
The average speed of Viking ships varied from ship to ship, but lay in the range of 5â10 knots (9.3â18.5 km/h) and the maximum speed of a longship under favorable conditions, was around 15 knots (28 km/h).Longships were the epitome of naval power in their time, and were highly valued possessions.he snekkja (or snekke), meaning 'thin and projecting,' was typically the smallest longship used in warfare and was classified as a ship with at least 20 rowing benches. A typical snekkja might have a length of 17 m (56 feet), a width of 2.5 m (8.2 feet), and a draught of only 0.5 m (1.6 feet).