[bvipilots] Re: Direct GPS navigation, or high Altitude Airways?

  • From: hadi rezaei <r.hadi.90@xxxxxxxxxxx>
  • To: <bvipilots@xxxxxxxxxxxxx>
  • Date: Sun, 27 Nov 2011 21:35:51 +0330

hello captains
so here, i'm going to explain 
direct GPS, vs high/low alt airways.

so basicly, when you switch your navigation devices to GPS 
(auto-route-following) your autopilot will take the lead
when you  do "auto pilot on", you will turn on your  main auto pilot system, 
which controls the, navigation systems (heading, corse, GPS), altitude, 
virticle rate speed, your airspeed (by ajusting the throttle automaticly) your 
engine temprature, your trims.
here, we have the auto pilot on.
now on navigation GPS.
when you make your filePlan with FS, FS will draw a route on the map for you. 
from your departure to your destination.
now. when you select "direct GPS", fs will draw this route, directly from your 
departure to your distination. by direct i mean you don't have any turns, or 
intersections in your route.
so when you cruise, you will head directly to your destination without changing 
headings on the air (when your GPS is on.)
saying this, if you choose direct GPS, then when you switch your nav GPS on, if 
you ask michel "get the directions to the airport", she replys with "the 
airport is at our 12 ocl" it means that you're heading directly to your 
(in the real world, 90% of the times pilots are not allowed to do this, it will 
ruind the traffic, and the aircrafts will crash to each other if they all fly 
now when you choose "high or low alt airways"
fs will draw a normal (depend on the world routes) route for you, with 
intersections, and some turns in your cruise way.
like, when you go over of some waypoints, you will change headings slightly, 
and follow the road. your NAV GPS will lead the aircraft, turning left and 
right  on the air ways.

so with all of these, i hope i could explain the diffrense to you, and how the 
navigation GPS works.
note: GPS doesn't exist in real world. in real world, there is a FMC (flight 
management control) installed on all aircrafts, and when a pilot fills all the 
information that FMC needs, FMC will lead the aircraft on cruise, like the GPS 
thing which we have.

if i couldn't explain this thing, or my sentenses didn't make sense, please  
tell me so i might be able to do this.
after all, you need to know what are you doing in the aircraft instead of just 
sitting and  say soem commands repeatedly.
ron said that there might be other options.
so basicly, "FMC" "manual nav, which you should change heading yourself when 
you can see the map visually, or sometimes the ATC will give the headings to 
you if you want".

you have this mail from hadi

From: kolesar16417@xxxxxxxxxxxxxx
To: bvipilots@xxxxxxxxxxxxx
Subject: [bvipilots] Re: Direct GPS navigation, or high Altitude Airways?
Date: Sun, 27 Nov 2011 12:05:30 -0500

I always make sure that my nav GPS is set to GPS.
Never heard of the other options.


From: Tony 
Sent: Sunday, November 27, 2011 10:45 AM
To: bvipilots@xxxxxxxxxxxxx 
Subject: [bvipilots] Direct GPS navigation, or high Altitude Airways?

Hi All
Is there an advantage to using either of these?
Also, I’ve noticed that when plotting a route in flight planner using high 
altitude airways, the waypoints can consist of intersections and VOR stations.
Is it necessary to do anything when the next waypoint is a VOR, or will the 
aircraft magically go on its merry way.
Ron and current Leader Dog boz who states "that a service dog beats a cane 
hands down any day of the week."                                       

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