what was the spruce goose made out of
almost entirely of birch
title: Spruce Production Division text: Sitka spruce was the most important tree species because its combination of lightness, strength, and resiliency was ideal for aircraft production. In addition, its long, tough fibers did not splinter when struck by bullets. Even before the United States entered the war, the Pacific Northwest had become the main supplier of spruce for aircraft production in Great Britain, France, and Italy. Northwest lumber mills, however, were never able to meet Europe's demand for spruce. The government wanted a monthly production of of spruce, but before the division was activated, only were produced monthly. When the United States entered the war title: Spruce text: important woods for paper uses, as it has long wood fibres which bind together to make strong paper. The fibres are thin walled and collapse to thin bands upon drying. Spruces are commonly used in mechanical pulping as they are easily bleached. Together with northern pines, northern spruces are commonly used to make NBSK. Spruces are cultivated over vast areas as pulpwood. The fresh shoots of many spruces are a natural source of vitamin C. Captain Cook made alcoholic sugar-based spruce beer during his sea voyages in order to prevent scurvy in his crew. The leaves and branches, or the title: Spruce text: pine, fir) and whitewood (the collective name for spruce wood). Spruce wood is used for many purposes, ranging from general construction work and crates to highly specialised uses in wooden aircraft. The Wright brothers' first aircraft, the "Flyer", was built of spruce. Because this species has no insect or decay resistance qualities after logging, it is generally recommended for construction purposes as indoor use only (indoor drywall framing, for example). Spruce wood, when left outside cannot be expected to last more than 12–18 months depending on the type of climate it is exposed to. Spruce is one of the most title: Spruce gum text: Spruce gum Spruce gum is a chewing material made from the resin of spruce trees. In North America, spruce resin was chewed by Native Americans, and was later introduced to the early American pioneers and was sold commercially by the 19th century, by John B. Curtis amongst others. In the 20th century, commercial spruce tree processing turned to paper manufacturing to meet demand from the newspaper industry, thereby reducing the availability of spruce for other purposes, including Spruce Gum. Today, it is available in small batches made at home rather than commercially. It is often flavored with mint or fruit. title: Spruce text: soundboard at the heart of a piano and the harp. Wood used for this purpose is referred to as tonewood. Spruce, along with cedar, is often used for the soundboard/top of an acoustic guitar. The main types of spruce used for this purpose are Sitka, Engelmann, Adirondack and European spruces. The resin was used in the manufacture of pitch in the past (before the use of petrochemicals); the scientific name "Picea" derives from Latin "pitch pine" (referring to Scots pine), from , an adjective from "pitch". Native Americans in North America use the thin, pliable roots of some species for