Jan 02 2012

Early Firearms

During their Chinese campaigns, the Mongols would, for the first time, have faced a new type of weaponry: firearms. The earliest recipe for gunpowder comes from the Wujing Zongjao (c.1040), while the Chinese may have used "fire-lances" against the nomadic Jurchen in 1132. The Mongols themselves used primitive gunpowder weapons in their abortive invasions of Japan in 1274 and 1281, but it was their successors, the Ming Dynasty, who first exploited them, justifying the name by which gunpowder came to be known in Europe, "Chinese salt." The Ming, indeed, had a military school by the early 1400s specifically tasked with instructing soldiers in the use of firearms, and also employed dragoons (mounted handgunners). By the early 14th century Arabs and Korean had obtained firearms, which the Christian forces in Spain had also acquired and used in their long war against Muslim invaders in the Iberian peninsula.

Although cannons were used by the English at Crécy in 1346, it was only at the very end of the period that firearms really began to play a significant role in Europe. This was most notable in siege warfare, where the problems of transporting the massive cannons was less pressing than in battlefield use. The huge bombards used by the Ottomans against Constantinople in 1453 heralded a brief age in which strong fortifications were no longer a reliable protection for defending forces. It was not, however, until the introduction of iron balls, which meant cannons could be smaller, and corned powder (around 1420), which gave them more power, that field artillery became a possibility. The victory of the French at Castillon in 1453, when Jean Bureau’s cannons raked the English army and forced its flight, was perhaps the first example of a victory won through its use.

The first handguns had appeared in the early 1400s—by 1421 John the Fearless of Burgundy was said to have 4,000 in his army. Yet it was not until the introduction, from around 1450, of matchlock arquebuses, which were possible —just—to reload in combat, that the handgun began to find a place on the battlefield. Even so, the late 15th century was very much a time of transition: as late as 1494, half the French army that invaded Italy was composed of heavy cavalry, while, in contrast, the Swiss mercenaries who defeated the Burgundians at Nancy in 1477 were composed of a combined force of pikemen mixed with handgunners. The Burgundians could not penetrate the Swiss phalanx, leaving them vulnerable to volleys of fire from the handgunners. By the early 16th century, the idea of military obligation in return for land had faded in western Europe and, elsewhere, states, such as those of the Ming and the Ottoman Turks were consolidating to such an extent that central resources were once again equal to deploying larger armies and keeping them in the field for extended periods. The world lay on the verge of a military revolution.

Jan 02 2012

Dornier Do 17

The Dornier Do 17 was a German medium bomber used during the first two years of World War II. It was developed by Dornier Flugzeukwerke and entered service in 1937. Before the war, it was also used as a mail carrier and commercial transport. Ordered in quantity production, the versions Dornier Do 17E-1 bomber and the Do 17F-1 reconnaissance aircraft saw service in the formative years of the Luftwaffe. The outbreak of war saw these models superseded by the main version, the Do 17Z-1 and Do 17Z-2 bombers, and the lighter Do 17M-1 reconnaissance version, the last equipping many Fernaufklärungsgruppen by September 1939. The Dornier Do 17Z faired well in World War II early battles; after serving with great success in the Spanish Civil War (1936-1939), the next action for the Dornier Do 17 was during the invasion of Poland in 1939. Operating virtually unopposed, the Do 17s made many devastating low-level attacks on military installations. It was also successfully used during the campaign in the Low Countries, and invasion of France, but when more professional defence was encountered, such as that over England in 1940, the aircraft was found to be lacking and was soon relegated to less dangerous roles.

The Dornier Do 17 was a five-seat, shoulder-winged aircraft powered by two Bramo Fafmr 323P radial piston engines, producing 1,000 horsepower each. It was armed with eight 7,92mm (0.31-in) MG 15 machine-guns in windscreen, nose, beam, ventral and dorsal stations, plus a bombload of 1,000 kg (2,205 lb). Although not conspicuously fast, the Dormer Do 17Z could be handled much like a fighter, being very light on the controls: structurally it was tough, and it soon surprised its opponents by being able to evade attacks by wheeling into a wing-over and plummeting down in a dive often in excess of 610 km/h (380 mph). In Poland Do 17Z- 1s and Do 17Z-2s made many very low-level strikes on airfields and military installations.

Specifications

Type: medium bomber
Country of origin: Germany
Manufacturer: Dornier
Power plant: two 1,000 hp (745 kW) Bramo Fafmr 323P radial piston engines
Maximum speed: 410km/h(255mph) at4000m (13,125ft)
Range: 1500 km (932 miles)
Ceiling: 8200 m (26,905 ft)
Weapons: eight machine guns, plus 1,000 kg (2,205 lb) of bombs
Wing span: 18 m
Length: 15.80 m (51 ft 9 in)
Crew: 5

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