The Chinook possesses several means of loading various cargoes, including multiple doors across the fuselage, a wide loading ramp located at the rear of the fuselage and a total of three external ventral cargo hooks to carry underslung loads. In 1962, the HC-1B was redesignated CH-47A under the 1962 United States Tri-Service aircraft designation system.

Initially designated as the YCH-1B, on 21 September 1961, the preproduction rotorcraft performed its maiden flight. Marine Corps as the CH-46 Sea Knight, the Army sought a heavier transport helicopter, and ordered an enlarged derivative of the V-107 with the Vertol designation Model 114. While the YHC-1A would be improved and adopted by the U.S. Army ordered a small number of V-107s from Vertol under the YHC-1A designation following testing, it came to be considered by some Army officials to be too heavy for the assault missions and too light for transport purposes. Around the same time, the United States Department of the Army announced its intention to replace the piston-engine–powered Sikorsky CH-37 Mojave with a new, gas-turbine–powered helicopter. The Chinook was originally designed by Vertol, which had begun work in 1957 on a new tandem-rotor helicopter, designated as the Vertol Model 107 or V-107. Its name, Chinook, is from the Native American Chinook people of Oregon and Washington state. The Chinook is a heavy-lift helicopter that is among the heaviest lifting Western helicopters. Once the software installation is complete, you can continue reading or shopping or doing whatever else you were doing before the new software was installed.The Boeing CH-47 Chinook is a tandem-rotor helicopter developed by American rotorcraft company Vertol and manufactured by Boeing Vertol. Tap on the NOOK symbol to learn details about the release. A small NOOK symbol will appear in the far left corner of the Status Bar when a new software release is available. When a new software release is available, your NOOK will download it and install it when you next connect to a wireless network.

Installing a Software Update over a Wireless Network Your NOOK remains registered to your Barnes & Noble account, and all your reading material remains accessible.

The software update simply installs new NOOK software to give you the latest features available from Barnes & Noble. Updating software does not delete any of your books, magazines, or newspapers, nor does it delete any of the files you have transferred onto your NOOK from your personal computer. Your NOOK will automatically install these updates. From time to time Barnes & Noble may release software updates for your NOOK.

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