basic tacan-divert training

7/31/2019 Basic Tacan-Divert Training

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Basic Tacan/Divert training

Posted By Naldo at www.globalfalcon.org 22/03/2007

This is an old post I found by a guy called RODION.

Its old but fits the job ok

If everything is set, then you first need to load the default TRAINING MISSION

wherein you find an F-16D about to land on Kunsan airbase.

Ok, when you load the training mission, your screen should look more or less like

this:
http://www.globalfalcon.org/http://www.globalfalcon.org/


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You are about to land at Kunsan. But for this tutorial, we areNOTgoing to land at

Kunsan...let's pretend we need to do a emergency divert at Seoul International, which

is about 100 miles away to the north-northeast. So the question is, how do I get to

Seoul from here?


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Well first, you have to bring up your kneeboard map, and see what are the closest

airports/NAV points you can use to trace a route to Seoul...here you see that I chose

airports R110 and Osan as my waypoints to Seoul.

However, a quick glance at my airkase list on my steerpoint page tells me there are no

NAV/TACAN frequencies for R110, because this is an emergency highway airstrip.

So what do I do now? Well, at least Osan has an entry, 094X and the radio range is

quite good, so...


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...obviously, you just have to keep flying north-northwest until you can pick out an

alternate route, such as this...flying directly to Osan. So the next step is setting upyour NAV radios to follow a radial to Osan via the "steam gauge" HSI.


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So the first step is to enter Osan's TACAN channel on PanelB (left)... 094X (careful

not to change the X to a Y because were after a ground location)

Next step is to go to your ICP and press T-ILS (you can see a more detailed procedure

of this in the sp4_korean_volume.pdf document found in the docs folder, under

"TACAN SELECTION - NORMAL MODE"). Input the TACAN channel (that you

entered on the panel earlier) on the scratchpad and then press ENTR (press 9, 4, then

ENTR).


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You should see CHAN change from 75 (075X, TACAN for Kunsan) to 94 (094X,

TACAN for Osan), and naturally, the ILS frequency also changes from 110.30 to

111.30.


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(note, you may notice that I have the DED displayed on my HUD...it's just a matter of

preference...some people might like their HUDs with less clutter but I prefer to havethe DED there so that I won't have to glance at the right from time to time while

trying to concentrate on other HUD values.

Next step is to make sure the MODE dial on the INSTR panel (down center) is set to

TCN, and note the distance to Osan (59 miles) on the HSI, as well as what radial you

are currently on. Take a close look at the HSI...it's telling me that if I wait for a bit, I

can intercept the 030 radial "TO" Osan, and then turn my aircraft to fly a heading of

030 to Osan. So just cruise at a nominal speed until the radial looks like...

...this...just intercepted 030 and now I need to turn and bank to a heading of 030 so

that I can head to Osan, which is now only 52 miles away as indicated in the HSI.


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Ok, turn completed, and now tracking the 030 radial enroute to Osan, straight ahead at

50 miles.

After a few minutes, we can see Osan dead ahead! Just 20 more miles. You may

notice I've drifted a bit to the left and now actually flying a heading of 035 to overfly

Osan. If drifting occurs, try to fiddle with the CRS dial on the HSI to fine tune theradial/course your are flying.


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Time to change the TACAN channel on PanelB, change it to the SEOUL TACAN

(046X).


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You immediately see the results on the DED (Channel 46(X), with ILS freq 110.9)

Now it's time to steer the plane so that you ride the 016 radial to SEOUL...


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(NOTE: Since Seoul TACAN seems to be weak/out of range at this point, there couldbe some time before your TCN and HSI can "see" it, so just fly a heading of around

020 until your HSI shows no red flags and you can see the radial.

...ok now we're flying directly to SEOUL International. It's only 28 miles to go.

Again, if drifting occurs, try to fiddle with the CRS dial to fine tune the radial/course

your are flying.

At a distance of about 20 miles, radio the tower, and make SURE you hear ("...good

morning, this is SEOUL Tower...") otherwise, you know you totally messed up the

TACAN values somewhere hehe. It's now time to go over your approach/landing

checklist.


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"...descend to 2000, maintain 220, turn left to final approach course 010..."...I extend

the speedbrakes.


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I fiddle around with the CRS button more to make sure I'm headed the right way, and

of course, now setting the MODE knob on the INSTR panel to ILS! Remember your

prelanding and final approach checklist!!!


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...master arm off, landing lights, driftc/o...gear down...check AOA, check airspeed,check ILS beam align...so far so good!


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...yikes...drifted to the left on approach, I need to correct to the right bit. Airspeed and

AOA nominal...Rate of descent is a bit high...will try to compensate by dipping nose

as I go.


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Trying to nail the AOA, the airspeed and ROD. Nearly there!


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And...Rodski has landed...well not exactly on the centerline, but hey, I'm on terra

firma, safe and sound, and it was a greaser ...wheelbrakes...85 kts..NWS

active...retract speedbrakes.


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Welcome to Seoul International!


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Park, A-L checklist...THE END!

I hope you found this guide useful. For me, knowing that the good ol' NAV radios in

the Viper actually work somehow creates a "connection" between my civvieflightsimming and my combat flightsimming. It's actually very refreshing and


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rewarding just to play around with some of the Viper's systems in non-combat

situations, because sometimes you never know when you might need it in a real

combat scenario.

-RODION

basic tacan-divert training

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