国外航校私照飞行员地面课Lesson 14.pptxVIP

Sierra Academy of Aeronautics PPL Ground; Introduce NDB VOR GPS;Three common types for VFR pilots NDB VOR GPS;What is NDB - Non-Directional Beacon Radio signal sent in all directions Located on the ground – similar to AM radio station What is ADF - Automated Direction Finder Equipment in aircraft Points to the NDB;MH – Magnetic heading RB – Relative Bearing Where the NDB is in relation to the airplanes nose 50? MH + RB = MB Muddy Hole + Rubber Boots = Muddy Boots ;What is the RB to the NDB? 225? If MH = 320, What is MB? MH + RB = MB 320 + 225 = 545? 545 - 360 = 185?;Movable Card ADF What is the MB? 190? What is the MH? 315? What is the RB? RB + MH = MB RB = 190 – 315 = -125 + 360 = `235 RB = MB – MH = 235?;What is VOR Allows you to select a specific course to/from VOR How to use it Tune in Frequency Identify station Use Select desired course, needle indicates if you are left/right of course;;When does “Reverse Sensing” occur When you are not flying a course similar to what the VOR is set to. Ex. If you are flying 180? and VOR is set to 360? ;If airplane 1 is flying 030?, are they left or right of course? Right, the needle indicates the course is to the left so the airplane is right of course;Satellite based system At least 24 satellites in the system 5 viewable anywhere on earth at any time 4 satellites needed for a accurate position