Possible BUG: ILS deviation needle.

[bkthunder]

So the question is:

Why does the A-10C uses the flight director needle as a deviation indication for ILS landing? Considering this is slaved to the HSI heading, it means that if the heading is not set perfectly, you will not be able to perform a precise / safe ILS approach.

Edited July 3, 2016 by bkthunder

[Eddie]

Have a read if this thread. http://forums.eagle.ru/showthread.php?t=115053

 

In short, yes it's wrong, but it's never going to change.

[bkthunder]

Eddie, at the end of that thread you report the bug as fixed in 1.2.6, so I'm confused. Is it correct now or not?

[Eddie]

The flight director bars incorrectly displaying raw ILS data was fixed, the need to set the heading via the HSI course knob which was discussed at length in that thread was not changed, and won't be.

[Vitormouraa]

The flight director bars incorrectly displaying raw ILS data was fixed, the need to set the heading via the HSI course knob which was discussed at length in that thread was not changed, and won't be.

 

So you are saying IRL the A-10 (pilot) doesn't need to change the HSI course manually?

[bkthunder]

So you are saying IRL the A-10 (pilot) doesn't need to change the HSI course manually?

 

IRL the ILS has nothing to do with the heading you set on the HSI. youcan have any heading on the HSI and the ILS will still track correctly.

 

 

@Eddie, any reason why they're not fixing it???

[Razor18]

Just a question: if you set the runway heading ("course" on the HSI or wherever correct runway heading needs to be set for the ILS approach) wrong, like off about 10 degree, will your approach be in the wrong angle too, then?

[escaner]

IRL the ILS has nothing to do with the heading you set on the HSI. youcan have any heading on the HSI and the ILS will still track correctly.

 

@Eddie, any reason why they're not fixing it???

 

In the game it works just like that.

It is the flight director bars what is affected by the course set in the HSI.

[bkthunder]

In the game it works just like that.

It is the flight director bars what is affected by the course set in the HSI.

 

auto-quote

So the question is:

Why does the A-10C uses the flight director needle as a deviation indication for ILS landing? Considering this is slaved to the HSI heading, it means that if the heading is not set perfectly, you will not be able to perform a precise / safe ILS approach.

[Vitormouraa]

I would say it's almost impossible to land without a HSI course, knowing you need to use it for approaching when the visibility is almost 0.

[escaner]

So the question is:

Why does the A-10C uses the flight director needle as a deviation indication for ILS landing? Considering this is slaved to the HSI heading, it means that if the heading is not set perfectly, you will not be able to perform a precise / safe ILS approach.

 

Those assumptions are false.

 

Flight director needles (in A-10 or any other aircraft) are not a deviation indicator for ILS nor any other navigation source. Flight director are roll & pitch commands to fly whatever navigation source you have selected. In DCS A-10C, the roll indicator is affected by the course selection in the HSI. While this might be a bug, it will not impede you from flying an ILS, because you don't even need a flight director for that.

 

The ILS indicators (these are the ones that measure deviation in degrees) are the CDI in the HSI for lateral deviation and the little white scale at the left part of the ADI for glideslope deviation. As I said this is not affected by the selected course.

 

A flight director is meant to help you navigate. If it does the opposite thing, just ignore it or better yet stow its needles with the switch below the HSI. Follow the CDI and the glideslope indicator and you will be flying the ILS as every pilot learns to do it.

 

Once you feel confident with the ILS, activate the flight director and learn how it works and what is telling you.