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EAC? *NOOB ALERT*


Rammit
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When ramp starting the aircraft, I am unable to ARM the EAC, it just snaps back into the off position, apologies for really noobish question :helpsmilie: :helpsmilie: :helpsmilie:

"If the MWS didn't see it, it didn't happen"

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Time 4.0 and Alignment 0.8, not 4.0.0.8, lol

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I've put all relevant info into the wiki for easy reference, some time ago. Kudos to the guys that did the nice gallery... most likely you did not wait for GPS alignment to be finished and had not switched navigation to EGI?

 

http://en.wiki.eagle.ru/wiki/EAC_-_Autopilot_system_explained

 

You may want to have a look at the ramp start checklist from Memphisbelle:

http://forums.eagle.ru/showthread.php?t=59427

 

EDIT: Sniped multiple times...:D

Shagrat

 

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Best is to go through the startup tutorial in game to make sure you aren't missing anything else.

Here's a Youtube link

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Best is to go through the startup tutorial in game to make sure you aren't missing anything else.

Here's a Youtube link

 

Don't use this one! (The YouTube Vid) It is obsolete, from the old beta days. You need to actively switch on EGI on the NMSP, now!:smartass:


Edited by shagrat

Shagrat

 

- Flying Sims since 1984 -:pilotfly:

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I had the EGI on, but didn't wait for the alignment :poster_oops:

That would have been the EGI Power switch (Right console)... after alignment is finished, blinking "NAV READY", and pressing NAV, you must choose the EGI as source for navigation on the NMSP (the button panel directly behind the flightstick).

 

If you forget that EAC will not work. In the end make sure all lights on the Warning lights panel are unlit :smartass:

 

If you already knew all this, take it as a hint for the next newcomer searching the forums... :D

Shagrat

 

- Flying Sims since 1984 -:pilotfly:

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To activate the EAC, just push your aircraft forward just a little bit after you complete the BITS test. You cant click the EGI until you do this, and youll know you can click it when the magnetic compass gyro aligns itself.

 

I'll try this because no matter what I am also unable to switch it on.

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I'll try this because no matter what I am also unable to switch it on.

 

 

If done correctly you don't need to move the A10 forward. I'd say you've missed a step somewhere so perhaps check over the procedures.

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To activate the EAC, just push your aircraft forward just a little bit after you complete the BITS test. You cant click the EGI until you do this, and youll know you can click it when the magnetic compass gyro aligns itself.
nonsense.

 

GNS/INS Alignment, NMSP EGI and then LASTE EAC is the correct procedure, as described in the other posts.

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nonsense.

 

GNS/INS Alignment, NMSP EGI and then LASTE EAC is the correct procedure, as described in the other posts.

Straight from the training missions, thats how its done. The EAC is the left most 2 position switch underneath the left throttle. The EGI is located in front of the stick on the bottom center console. You flick the EAC and the RDR ALTM switch forward, click center takeoff trim, set your autopilot switches, and you continue with the BITS process. Once this is done, you push the aircraft forward which completes the alignment process, where you can finally press the EGI button. What you are referring to is a ground alignment, which you must do if you have GPS guided munitions with the JTRS alignment switch. I can post a video if need be...

 

matter of fact, this is me starting this one up.


Edited by porky_pig
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I don't recall having to physically move the aircraft as part of the alignment process... And I've never done it either.

 

Simy go through all the tests and sequence, wait for the magical 4.0.0.8 number to appear on the CDU and flick the EGI/EAC Switch and you're done.

 

I could be wrong but it's never failed me.

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I don't recall having to physically move the aircraft as part of the alignment process... And I've never done it either.

 

Simy go through all the tests and sequence, wait for the magical 4.0.0.8 number to appear on the CDU and flick the EGI/EAC Switch and you're done.

 

Thats because you are doing a full on ground alignment, which takes 5 minutes to complete at a standstill. Im getting aligned on the ground by gyro only and do an inflight alignment unless I have GPS guided munitions...and to get that to work, you have to push the aircraft forward a hair. Takes about 4 minutes off of your startup to takeoff time doing it this way.

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It only takes about 4-5 minutes to take off including alignment if you don't take your time.

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If done correctly you don't need to move the A10 forward. I'd say you've missed a step somewhere so perhaps check over the procedures.

 

I do everything from the training mission. The only time EAC starts to work is a few minutes after I have am in the air, it's then I am able to switch it without it popping back. Any ideas why I am able to do it then and not before takeoff?

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I do everything from the training mission. The only time EAC starts to work is a few minutes after I have am in the air, it's then I am able to switch it without it popping back. Any ideas why I am able to do it then and not before takeoff?

The EAC is tied in with the attitude indicator (you have to uncage it first), the magnetic gyro (the compass on the center console), and the radar altitude and autopilot activation switches (the 4 switches on the left console outboard the left throttle). The attitude indicator must be uncaged first, and the aircrafts gyro compass at least aligned. All of the other switches should be in the forward position before taking off. This is because the EAC is a part of the autopilot system - it stabilizes your aircraft when you pull the trigger through its first stage before you fire your gun. This is why you dont need to be ground aligned.

 

To go a bit further into this, the autopilot is not dependant on the GPS system for guidance. Its all controlled by the magnetic gyro, and its this magnetic gyro that controls the autopilot servos that make adjustments to the control surface cables and hydraulics. The aircraft has to know what attitude it is currently in, its approximate altitude, and roughly what direction it is headed in order for the autopilot to function correctly. To give you an idea of how ridiculously easy that sounds, even small aircraft like Cessna 172s have the same magnetic compass that wont allow autopilot to work if the instrument is dead.


Edited by porky_pig
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Wow. :doh:

 

Spoiler

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Wow. :doh:

Thats my experience, and yes I have worked on these aircraft (cessnas) before. In the vid I posted earlier, prove to me I did something wrong and that EAC wasnt switched on, and EGI wasnt activated. Correct me if I am wrong, but its the gyro that controls the yaw axis autopilot, right? The pitot tube and pitot static port control the elevation and the velocity and rate of climb? The attitude indicator controls the pitch and roll axises? Yes, I am being serious here. If I dont know, then I want to learn. Knowing how something works is not greater than knowing why it has to work.


Edited by porky_pig
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Here's an unedited video of my first start-up last night.

Note there's plenty of time to waste. When Looking up I was sipping a beer :smilewink:

Time to taxi was 5 minutes.

http://www.youtube.com/watch?v=VUxgzTWMy1g

 

 

By the way, what's the method to paste the video in the forum?


Edited by Hamblue

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The EAC is tied in with the attitude indicator (you have to uncage it first), the magnetic gyro (the compass on the center console), and the radar altitude and autopilot activation switches (the 4 switches on the left console outboard the left throttle). The attitude indicator must be uncaged first, and the aircrafts gyro compass at least aligned. All of the other switches should be in the forward position before taking off. This is because the EAC is a part of the autopilot system - it stabilizes your aircraft when you pull the trigger through its first stage before you fire your gun. This is why you dont need to be ground aligned.

 

To go a bit further into this, the autopilot is not dependant on the GPS system for guidance. Its all controlled by the magnetic gyro, and its this magnetic gyro that controls the autopilot servos that make adjustments to the control surface cables and hydraulics. The aircraft has to know what attitude it is currently in, its approximate altitude, and roughly what direction it is headed in order for the autopilot to function correctly. To give you an idea of how ridiculously easy that sounds, even small aircraft like Cessna 172s have the same magnetic compass that wont allow autopilot to work if the instrument is dead.

 

I have uncaged the altitude indicator first, I uncage it like it tells you to in the training mission. I have done exactly what the training mission tells you to do from ramp start. I went through the training mission again to see if I had missed anything and it turns off in the training mission. However, as soon as I do ramp start from the create fast mission it won't switch off untill I am in the air for a few minutes. Are you talking about the auto trim on the left side because I have also switched those 4 switches forwards just like it says in the training mission.

 

Should I make a track file and upload it here?

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