1 1930 â 1939 World History - 1930 â 1939 World History Amelia Earhart (1897â1937) The Library of Congress Picture 2  ... RFC: meaning and definitions-RFC: Definition and Pronunciation. 3  Agencies of the United Nations-Agencies of the United Nations Linked to the United Nations through special agreements, the ...
1 Wood was used on most early airplanes and is now mainly used on homebuilt airplanes. 2  Wood is lightweight and strong, but it also splinters and requires a lot of maintenance. 3  Aluminum (blended with small quantities of other metals) is used on most types of aircraft because it is lightweight and strong.
Boeing's 787 Dreamliner will be the first commercial aircraft in which major structural elements are made of composite materials rather than aluminum alloys. There will be a shift away from archaic fibreglass composites to more advanced carbon laminate and carbon sandwich composites in this aircraft.he weight of aircraft components made of composite materials are reduced by approximately 20%, such as in the case of the 787 Dreamliner. A sample calculation of total fuel savings with a 20% empty weight reduction will be done below for an Airbus A340-300 aircraft.