Fast and Long alignment question.

[Tarres]

Quick question regarding the Inertial Navigation system.

is the long alignment available, or for now only the Fast alignment process is available? 

 

[Raven (Elysian Angel)]

It will probably come at a later date. ED has a history of shipping modules with only rudimentary (if at all) INS systems at time of EA launch.

[UWBuRn]

It's already available, but you need to wait a long time before flipping the PREPARE-OPER switch, it's like 15-20 minutes.

IRL i think it was something performed by ground crew when preparating the AC.

In DCS, if you spawn the AC hot, IIRC in the mission editor you can set the kind of alignment performed.

[Tarres]

Thanks, yes it’s like 15-20 minutes.
But I Haven’t seen the Nav Ready light on. 
I will try again later.

[AeriaGloria]

The difference is 4% distance travelled error and 1.5 degree heading deviation per hour for fast align/dead reckoning mode, and 8 km distance error + 1 degree heading deviation for long align/INS mode. Not sure how worth it that difference is 

Edited Friday at 09:28 AM by AeriaGloria

[Tarres]

Yes I know.

iI’s more about to know about what it’s modeled, what is WiP, what will be not implemented…

Thanks.

[UWBuRn]

1 hour ago, Tarres said:

Thanks, yes it’s like 15-20 minutes.
But I Haven’t seen the Nav Ready light on. 
I will try again later.

I have tried once and it works, but without RSBN is still not worth the wait.

The procedure is not in the game manual, and i'm not 100% sure, i was looking on the German AF manual i bought long ago, but it was not 100% clear to me there as well, IIRC i had to wait 15-20 minutes before flipping the switch to OPER, actually i think switched it when the NAV READY indication was lit. IRL there are some delays to apply if you switch from FAST to LONG align, but i haven't tested them.

[Tarres]

48 minutes ago, UWBuRn said:

I have tried once and it works, but without RSBN is still not worth the wait.

The procedure is not in the game manual, and i'm not 100% sure, i was looking on the German AF manual i bought long ago, but it was not 100% clear to me there as well, IIRC i had to wait 15-20 minutes before flipping the switch to OPER, actually i think switched it when the NAV READY indication was lit. IRL there are some delays to apply if you switch from FAST to LONG align, but i haven't tested them.

Same here. I will try again this weekend.

In the GAF manual I think that the button below the HSI and the comp-zero button are only pressed for the fast align. Maybe Ive red it wrong.

[IvanK]

Pressed for both short and long alignments

[QuiGon]

Long alignment is already implemented, but it's not documented in the game manual yet. To do a long alignment you just leave the prepare switch in the off position untill the "NAV READY" light appears (takes about 10-15 minutes) and then you flip the prepare switch ON.

[okopanja]

On 10/24/2025 at 11:27 AM, AeriaGloria said:

The difference is 4% distance travelled error and 1.5 degree heading deviation per hour for fast align/dead reckoning mode, and 8 km distance error + 1 degree heading deviation for long align/INS mode. Not sure how worth it that difference is 

Why not calculate and compare in your videos?

[AeriaGloria]

Because I have 0 intention of using long alignment and pretty sure few people do as well lol 

[IvanK]

Guidance given in the Russian manuals is that SOP for short range operations within range of RSBN beacons used for updating use Short Alignment.

For Long range operations with few or no means to update by RSBN beacons use Long Alignment.

Long Alignment can be done pre start with ground power available. Conceptually this would/could be done by the ground crew before the pilot gets to the jet. Be nice if this was a DCS spawn option.

[okopanja]

8 hours ago, AeriaGloria said:

Because I have 0 intention of using long alignment and pretty sure few people do as well lol 

I think you misunderstood. I refered to both fast and long alignment. E.g. do bith perform according to the specs/predictions?

As you pointed out long would probably not be practical for the majority of players, but as something which would be part of black box testing it would be interesting to know it as a reference.

5 hours ago, IvanK said:

Conceptually this would/could be done by the ground crew before the pilot gets to the jet.

During the startup both pilot and technical people have their own tasks. I think I have a video somewhere showing one of them standing next to the cockpit assisting the pilot before the flight but also after the flight one of them reads the flight time.

[UWBuRn]

15 hours ago, IvanK said:

Long Alignment can be done pre start with ground power available. Conceptually this would/could be done by the ground crew before the pilot gets to the jet. Be nice if this was a DCS spawn option.

It is an option already for hot spawn.

What we don't have is a "warm" spawn, with some system prepared but engines off, not sure of how useful would be.

[IvanK]

2 hours ago, UWBuRn said:

It is an option already for hot spawn

Can you specify Long Alignment ???