Protractor the UK. Protractor A protractor is a measuring instrument, typically made of transparent plastic or glass, for measuring angles. Most protractors measure angles in degrees (°). Radian-scale protractors measure angles in radians. Most protractors are divided into 180 equal parts. Some precision protractors further divide degrees into arcminutes. They are used for a variety of mechanical and engineering-related applications. One common use is in geometry lessons in schools. Some protractors are simple half-discs. More advanced protractors, such as the bevel protractor, have one or two swinging arms, which can be used to help measure the angle. A bevel protractor is
OMB Circular A-126 OMB Circular A-126 OMB Circular A-126, revised May 22, 1992, is a Government circular that introduces standards and policies to minimize the cost and improve the management and use of United States Government aircraft. Specifically, OMB Circular A-126 addresses the acquisition, management, usage, cost accounting, and disposal of government aircraft. All policies presented by this circular apply to Executive Agencies, with special policy covering the travel by senior officials or non-Federal travelers on government aircraft that is government-owned, leased, chartered or rented and any related services that apply. The only exceptions are aircraft that is in use by or in