WASHINGTON, Nov. 20 -- In the cutthroat and intricate business of model airplanes, some aircraft manufacturers compete with model-makers and will also sell scale models of their airplanes.

Desktop model airplanes range in size from the very large 1:20 scale for the large commercial models to the much smaller 1:400 to 1:600 for the 3- to 6-inch models. The larger the aircraft model ...

io9 When the U.S. Army Corps of Engineers created a 200-acre, scale model of the Mississippi River Basin By Annalee Newitz Published July 8, 2011 | Comments (0) 𝕏 ...