beam compass การใช้

• The figure at left, for example, was drawn before the advent of computers and hence required the use of a beam compass.
• While beam compass use was critically dependent on the skill of the user, his machine produced more regular divisions by virtue of its design.
• Prior to the availability of computers, stereographic projections with great circles often involved drawing large-radius arcs that required use of a beam compass.
• These beam compass techniques were used into the 19th century, as the dividing engines that followed did not scale up to the largest instruments being constructed.
• Finding a beam compass today might be fairly difficult, since it is much easier to draw curves having a large radius of curvature ( in two or three dimensions ) with help from a computer.
• In the B . 2, these features were incorporated into the Smiths Military Flight System ( MFS ), the pilots'components being : two beam compasses; two director-horizons; and a Mk . 10A or Mk . 10B autopilot.