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Posted

So I would like to use TACAN in the M2000C in Air to Air mode. I wanna use it to navigate to a tanker, but how do i find out the tankers frequency?

pls help me!

 

thanks in advance,

EliteKAtze

Posted

Which tanquer are you looking for?

 

IIRC S-3B & IL-78 doesn't have AA TACAN at DCSW, you only will have TACAN reading with KC-135 at DCSW.

Posted
Which tanquer are you looking for?

 

IIRC S-3B & IL-78 doesn't have AA TACAN at DCSW, you only will have TACAN reading with KC-135 at DCSW.

 

ah ok, whats its tacan frequency?

Posted
so how are you gonna refuel Mirage 2000C from KC-135 ?

 

it works.... but, it extrange... stick vs stick, you know...

  • Like 1
Posted

AFAIK, the A/A TACAN mode of the M-2000C isn't available yet. Also the Y channel isn't functional, IIRC.

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Posted
it works.... but, it extrange... stick vs stick, you know...

I wondered as well. Will give it a try, but I just wish a KC-10 or drogue-equipped KC-135

Posted
Yea, there's something wierd about Y. It doesn't work for contacts other than tankers, implying there's something special-case about it.

You mean, it works for tankers (KC-135)? That's new for me. :thumbup:

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Posted
You mean, it works for tankers (KC-135)? That's new for me. :thumbup:

 

Only in the A-10C, which is why I think something is hard coded to get that plane to work properly.

 

If you go through beacons.lua for ground stations, you'll see everything assumes X TACANs for ground navigation, which is also not true in real life. I just think the existing "radio signal simulation" is a bit too simplified. It's a good start, but needs more capability.

  • 5 months later...
Posted
So A to A TACAN still unavailable between mirages?

Has been working fine for months. Only distance though, no direction. (as you would expect).

Posted

No, there is no place for such heavy equipment. It's the same in real life.

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Posted (edited)

We are talking about A/A TACAN, right ? I checked the F-5 manual (probably the one you are talking about):

 

- the ARN-65 does not have an A/A position (only OFF, REC and T/R)

 

- the ARN-84 has an A/A (which is a T/R)

 

- the ARN-118 has both A/A REC and A/A T/R

 

I think the manual simply forgets to mention that A/A (REC or T/R) provides bearing from suitably equipped aircraft (ie. KC-10, as I believe this is the only aircraft with a 'directional' TACAN).

 

A/A TACAN between fighters has never given bearing, only distance. By the way.

 

As a side note:

 

T/R needs to be selected for both aircraft to have range (because it works with an interrogation-response system), while REC modes can receive bearing from a suitably station (ground or airborne), but not provide distance (since it is not willing to emit an interrogation).

 

In short, receiving bearing is passive, determining distance is not (of course, transmitting bearing is not passive either).

 

And lastly, TACAN equipment are pretty standard through NATO aircraft, so don't expect wildly different behaviours across the board. I am not sure what is the exact model the Mirage 2000C uses, but is is interesting to note that (in RAZBAM's cockpit at least) the control panel is in English (ie. it has an OFF position instead of A), contrary to almost everything else.

 

EDIT: Compare the wording in the F-15A-D manual:

 

In A/A mode, both distance and bearing are received if cooperating aircraft (such as refueling tanker) have bearing transmission capability.

(...)

A/A Tacan interrogates other aircraft which contain a tacan in the A/A mode and tune 63 channels apart from the channel setting of the interrogating aircraft. Bearing and distance information is received from a cooperating aircraft if it has bearing transmission capability. If the cooperating aircraft is not equipped with bearing transmission Equipment, only distance information is received and the HSI No. 1 bearing pointer will rotate clockwise at 30 degrees per seconds.

The only inconsistency in the current behaviour of the TACAN in the Mirage 2000C that I can see is that the needle on the HSI does not rotate, but stays fixed instead.

 

EDIT 2: As a further clarification, here's what the F-14D NATOPS flight manual has to say about the TACAN, which is the AN/ARN-118 (the same as on the late F-5s) (emphasis mine):

 

m a ground station simultaneously with 99 other aircraft. When in the A/A mode' date=' the system is capable of transponding with each of five cooperating aircraft, providing slant range information to each; however, the system will interrogate and lock on to only one. In A/A mode, the second aircraft must be 63 channels apart. [b']An airborne station provides only slant range distance unless the aircraft is equipped with a bearing transmitter and a rotating antenna. The AN/ARN−118 or AN/URC−107 are not able to transmit bearing information but can receive it from a specially equipped aircraft.[/b]

 

So, you can interrogate one aircraft, answer to five, and the AN/ARN-118 is not capable of transmitting bearing information.

Edited by Robin_Hood
  • Like 1
Posted

Well, I must admit I have only recently started using it in multiplayer, so I cannot comment too much. I am sure it can is very useful at least to practice* correct tactical formations (such as line abreast) or trail, with set distances, and help you see where you should be. Also, it can help a the rejoin of a lost wingman, or of your second element after a split. Suren it doesn't give bearing (and admittedly, bearing alone might arguably be more useful in that situation than range alone), but it gives you valuable information : how close you are, and if you are getting closer or not. I fell that combined with a bit of communication (such as current headings), it can really help a rejoin.

 

* you wouldn't use them in actual combat because you are, in effect, broadcasting your presence (if not your position)

 

In any case, I feel it is a help, but never a primary means of navigation. It's just a handy extra information.

Posted
Also, it can help a the rejoin of a lost wingman, or of your second element after a split.

 

I've used the yardstick in Multiplayer and it is very handy for this specific reason. I find DCS very difficult to spot contacts visually so my wingman and I have used the TACAN to stay relatively close to each other in support.

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