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How To: Fly Vectors Part 1 Lateral Navigation, Page 1 of 2 - TGIS

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This one deals with flying vectors under ATC control . It only deals with lateral vectors,
vertical changes will be covered in a later How To. The route is fictitious and I have
ignored any altitude constraints on any airways, SIDS etc so don’t get picky ;)
How To: Fly Vectors Part 1
Lateral Navigation, Page 1 of 2
1. Basic Setup. We’re on our route with LNAV and VNAV engaged
Example is Level D 767, it works the same with all Boeing. The same
principles apply to Airbusses but you press different buttons!
v.5 dated 28/11/10
TIP: Note that I keep my Heading Bug aligned with the direction of route, if you do that then you will
always be ready for a quick “right 5 degrees” that the controller might give you because it means less
knob twiddling! So, each time your route changes direction, just re-align the heading bug
Your EADI confirms that you are settled
on LNAV and VNAV with CMD engaged
2. ATC give you an instruction “Turn right heading 340 degrees”. This takes you off route .
First adjust your heading bug to 340 degrees with LNAV still
engaged. The EHSI now shows the intended heading.
You can always go straight to the next step and miss this one but
there is the risk that you dial in the wrong heading when already
on HDG SEL! By setting it before disengaging LNAV you get a brief
chance to check it.
Now PRESS the HDG Select button (where it says SEL). The
LNAV light extinguishes. The EADI changes from LNAV to
HDG SEL.
You are now flying a “Radar Heading” and if you get handed off to another
controller you should tell him straight away “Radar heading 340” so he
knows you’re not flying the planned route.
You are now set up for any further heading changes they give you, simply
bung them into the HDG dial and the aircraft will turn accordingly.
(c) Bill Casey, 2009, 2010. For Vatsim-UK. Not for real world navigation (or to be nicked by other networks)
The aircraft has now turned to the selected
heading. Note that with the crosswind the
Heading is NOT the same as the Track but
you have been told to fly a Heading, not a
Track.
Follows on from Page 1 where we had set up the aircraft on a Radar Heading, so we’re
on Heading Select, 340 Degrees, with VNAV engaged.
How To: Fly Vectors Part 1
Lateral Navigation, Page 2 of 2
3. ATC tell you “Resume own navigation direct to SAPCO“. This
bypasses your next waypoint of WELIN.
Example is Level D 767, it works the same with all Boeinga. The same
principles apply to Airbusses but you press different buttons!
Press the key next to
SAPCO, this puts it in
your scratchpad
v.5 dated 28/11/10
Now press the key
next to the waypoint
at the top of the
route (was WELIN)
and it replaces it with
SAPCO. EXEC
illuminates.
Once we have EXECuted that, the EHSI shows the new
route direct to SAPCO but we’re still heading 340. The
EADI still shows HDG SEL, LNAV is still off.
The whole route has
now shifted up one
place so we have just
missed out WELIN.
Press EXEC.
4. So, to �Resume Own Navigation’ having taken the above steps we MUST go back to LNAV. I’m stressing that
because it is DEAD easy to forget to re-engage LNAV and keep bimbling away on a Heading!
Press LNAV, the light comes back on, the
aircraft starts to turn Direct To SAPCO and
the EADI confirms you’re back on LNAV.
Now is a good time to re-align your heading
bug (pointing to SAPCO) ready for the next
interfering controller to take you off route
again!
Simples!
If you now get handed off to another controller, in your first call tell them that
you are “Direct SAPCO” or they may be expecting you to go via WELIN first
since that was your planned route.
(c) Bill Casey, 2009, 2010. For Vatsim-UK. Not for real world navigation (or to be nicked by other networks)
This process is the same anytime you get a
“Direct To” whether you were on a heading
or flying the programmed route. Move the
desired waypoint to the top of the route,
EXEC and make sure you’re on LNAV.
Direct To off-route waypoints.
If you’re sent to a Direct To waypoint that
is NOT on your route (assuming ATC havn’t
made a mistake!) then type it into the
scratchpad, place it to the top of the route
and press EXEC.
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