How did navigation input work in the AJ-37 ?

[Snappy]

Hi,

 

out of curiosity, if the navigation data cartridge system was part of the AJS upgrade,

how was the flight planroute actually entered by the pilot in the older AJ-37 version?

 

Did they enter each waypoint via long/lat coordinates ? I read somewhere (cant remember the source) that that within Sweden  there were a lot of pre-defined waypoints ( like the ones in our kneeboard pages) that could  be entered via codes.

But if so , were those pre-stored in the cK -37 memory or how did those fixes get into the aircraft at all if the option to load data via cartridge didn‘t exist?

 

kind regards,

 

 Snappy 

 

[Flappie]

I'm pretty sure they had to enter specific waypoints by hand before the introduction of the cartridge, yes.

 

According to the RC2 manual (p 180), pre-defined waypoints (90xx) are indeed stored in the CK37 memory. That leaves a maximum of 99 pre-defined waypoints. Bas 60/90 was composed of about 70 different airfields. This left some room for routine patrol waypoints over the Baltic Sea.

 

Quote

To make inputting coordinates easier, a set of reference numbers is pre-stored in the computer’s memory. Thereby, a 4 digit code corresponds to inputting 6+6 digits of longitude and latitude as well as connecting to other information regarding that locations, such as TILS channels or runway headings.

 

Edited March 19, 2021 by Flappie

[Machalot]

2 hours ago, Flappie said:

According to the RC2 manual (p 180), pre-defined waypoints (90xx) are indeed stored in the CK37 memory.

Have you ever found a use for the predined reference points listed in the knee board? 

[Flappie]

Of course yes. Haven't you?

It's quicker to input 4 digits than going to F10 view and inputing 12 digits.

 

[Machalot]

46 minutes ago, Flappie said:

Of course yes. Haven't you?

It's quicker to input 4 digits than going to F10 view and inputing 12 digits.

 

Well, apart from short hand entry. I meant, is there some specific reason to use those points?  I have no idea where they are just based on looking at the lon/lat on that paper.  Are they recognizable landmarks?

Edited March 19, 2021 by Machalot

[Flappie]

Oh, I see!

You're not talking about the "Airfields" page, but about the 3 "Reference points" pages:

 

 

No, I've never used those. Like you said, we don't even know what they stand for.

 

EDIT: maybe they are potential road landing zones?

 

Edited March 19, 2021 by Flappie

[randomTOTEN]

my understanding is that they are just pre-defined points saved into the computer. You can see many of them are associated with cities on the map, there are probably others referenced to navigation stations etc...

[Machalot]

8 minutes ago, Flappie said:

Oh, I see!

You're not talking about the "Airfields" page, but about the 3 "Reference points" pages:

 

 

No, I've never used those. Like you said, we don't even know what they stand for.

 

EDIT: maybe they are potential road landing zones?

 

 

Oh, yeah, I use the airfield codes every time I fly. 

 

Would be nice to have a description and map of those reference points. Do you know of any tools available to make a custom map using the DCS Caucasus map as the baseline? 

 

 

[Flappie]

I should be able to do this with... my own Caucasus webmap! But I'm a bit busy at the moment.

[JG300_Papaye]

23 hours ago, Flappie said:

I should be able to do this with... my own Caucasus webmap! But I'm a bit busy at the moment.