Creating SPI

[hassata]

located the Shilka with the TGP set the point as SPI, slaved the Maverick to it, but the Maverick wouldn't fire I don't remember exactly what it said, but something to the effect of:- Launch Inhibit no lock.

 

When this happens to me, it's usually because I forgot to make the Mav the SOI.

[Melcar]

You can try to force a lock with TMS UP short with the MAV as SOI.

 

I think this was probably my problem -- I tried the mission again today, and had no trouble firing 2 Mavericks, 1 at the Shilka, 1 at one of the APC's. (other I nailed with a CBU in CCIP). I then strafed the 4 trucks with the gun.

[Pyroflash]

Do you have to do this with a Maverick too?

 

Last night I was trying out the "Sitting Ducks" mission -- active pause, located the Shilka with the TGP set the point as SPI, slaved the Maverick to it, but the Maverick wouldn't fire I don't remember exactly what it said, but something to the effect of:- Launch Inhibit no lock.

 

No, once you slave the Mav to the SPI i.e. TGP, you should from there be able to tap TMS up short to lock the target. When the mav has achieved a lock, the crosshairs will change from solid to flashing, indicating that the imaging seeker is tracking the designated target.

 

From there hold down the weapons release button to fire the maverick.

 

keep in mind the Maverick's seeker WILL NOT auto lock on a target after being slaved to an SPI, you MUST tap TMS up short to lock the target(no actual slewing of the Maverick is required however).

 

@ Zenra, if you want to shoot a building:

 

To use the Maverick in force correlate mode:

1. Place the Boat Switch in the center position.

2. Slew the tracking gate near the intended target.

3. Ground stabilize the Maverick by pressing TMS Aft Short.

4. Slew the tracking gate over the target and the tracking gate will fully collapse. The Pointing Cross will go steady.

5. You can now launch the Maverick by holding down the weapon release button.

Edited May 28, 2011 by Pyroflash

[Fakum]

I have to assume that I am missing something obvious to most. For many days I have been trying to figure out something about the SPI. I will try a short version of my objective and make an example.

Flying Easy East Georgia, steerpoint 2 is a target area, I bring up TGP, make it SOI, China Hat Forward Long to slew to SPI (which is also steer point). Now once there I China Hat to narrow view, slew to one of the trucks, TMS UP Short to point, then TMS UP Long to set SPI. Now I know the original SPI was steerpoint 2, now when I China Hat AFT Long to slew to steerpoint, it does what I expect, and slews back to the original SPI, but when I China Hat Forward LONG, why wont it slew to the SPI that I set? Can I not do this? Or do I have to actually mark the targets as MARK POINTS instead to mark the targets? Thanks

[EtherealN]

Unless I'm missing something obvious (I'm numbed by a good few hours of tech work so this is entirely possible) your proceedure sounds right.

 

Can you upload a trk file of you doing this just to check?

[Fakum]

I would love to, just need time to figure out how to do that exactly, but I will,,, thanks

[Migo]

and slews back to the original SPI

As far as I know China Hat Aft slews to steerpoint and thereby resets the current SPI. I don't know if it should reset it but that's how it works on my side. Edited July 16, 2011 by Migo

[EtherealN]

I would love to, just need time to figure out how to do that exactly, but I will,,, thanks

 

Just do a quick flight (as short as possible) where you "do your thing", and after exiting the flight select "Save Track". After this your trk file will be saved in your C:\Users\XXX\SavedGames\DCS A-10C Warthog folder. (assuming Win7)

[Fakum]

Hmmmm,, although this wont solve my initial question, I will see what happens when I initially slew to SPI, pick and hook a target, then set SPI, and instead of slewing to steerpoint (to see if I can cycle china hat fwd & aft to see if I can cycle SPI's) I will china hat aft short to center camera, then china hat fwd long to see if it slews to SPI I set, or it goes to the steerpoint SPI,,,, I will report back, thx

[Fakum]

NAH,,, that didnt work either, I even tried laser then set SPI,, I will get a track together,,, thanks

[Fakum]

Basically, started ”Easy East Georgia Spring”,

Switched to waypoint 3

Opened TGP

Set TGP as SOI

China Hat Forward Long (Slew to SPI Point)

Switched from Wide to Narrow view

Zoomed in a bit

Slewed to a target

TMS Up Short (set point track)

TMS Up Long (Set SPI)

China Hat Aft Short (to center camera off of supposed SPI set by me)

China Hat Forward Long (to slew back to SPI)

** As you can see, it did not slew back to the target I selected as SPI, it slewed back to the original steer point SPI at the target area.

[ATTACH]53758[/ATTACH]

Edited July 16, 2011 by Fakum
trying to attach track file

[Fakum]

Thanks,, Im sure that makes sense to everyone else,,, right now,, Im reading that a few times and still trying to digest,,, sorry. So far, I think your saying that once I set the SPI in TGP to an actuall hard target, I better stick around and hit it before I move onto another target or set another SOI or the SPI I think I set will be gone?

[Fakum]

Ok. The last part clears up a bit for me,, thanks. I am still a bit confused on another scenerio then. If I SOI TGP like I have been, Slew to SPI, that puts me in the target area. Then lets say I slew to the left about 10 meters and SET SPI on a hard target. NOW,,,, I China Hat Aft Long, this slews back to the original SPI, without going out into space, I did not change SOI, then I China HAT Forward Long, this should slew back to the SPI I just set, shouldnt it? If not,,, all is well,, because it does not,, it just sits on the steer point. Thanks for bearing with me

[gmohr]

The important thing... If your SPI is set to the TGP, the SPI will move as you slew the TGP.

[nomdeplume]

If I SOI TGP like I have been, Slew to SPI, that puts me in the target area.

 

How are you 'slewing to SPI'? There are two commands I think you might be using: CHINA HAT FWD LONG or CHINA HAT AFT LONG. If you use FWD LONG, then you are in fact slewing all your sensors (including TGP) to your current SPI, which is probably your steerpoint. If you use AFT LONG, then you're slewing the TGP (and only the TGP) to your current steerpoint, without regard for your SPI.

 

There's no "wrong" answer, and I think you're using FWD LONG. I just wanted to make sure the difference between the two commands was crystal clear, because it can be a bit murky when you're learning.

 

Then lets say I slew to the left about 10 meters and SET SPI on a hard target.

 

By doing that, you're setting the TGP as the SPI. Your SPI therefore will be whatever your TGP is pointing at. If you move the TGP, your SPI will move with it.

 

I China Hat Aft Long, this slews back to the original SPI, without going out into space, I did not change SOI, then I China HAT Forward Long, this should slew back to the SPI I just set, shouldnt it?

 

Hopefully it should be clear to you what's happened, now. You say "original SPI" but it's important to understand that you only ever have one SPI. The system doesn't keep track of what your previous SPI was and allow you to switch between them (that's what mark points are for).

 

So, when you hit CHINA HAT AFT LONG, you slewed the TGP to your steerpoint - that's all that command does. Since the TGP was providing your SPI, your SPI will also wind up at your steerpoint because that's what the TGP is now pointing at.

 

Then when you did CHINA HAT FWD LONG, you are commanding all sensors to slave to your current SPI (the TGP). Obviously that's not going to change where the TGP is pointing.

[Comrade Vodka]

I'm having exactly the same probs as you. I just cant set the TDC on the HUD as the SPI. It's as if the TMS long is not functioning, but when i check in 'Controls' from the opening menu, it is functiong....as in the actual switch on my TM HOTAS is working......

[159th_Viper]

I'm having exactly the same probs as you. I just cant set the TDC on the HUD as the SPI. It's as if the TMS long is not functioning, but when i check in 'Controls' from the opening menu, it is functiong....as in the actual switch on my TM HOTAS is working......

 

The range of the TDC is 13nm - any further from the airframe and you will not be able to set it as SPI, indicative of the cross over the TDC when attempting to set it as SPI.

[Comrade Vodka]

Ok...Thanks for info. I am getting a cross over the TDC, so that explains that (although I was not aware what it signified) and thanks for bearing with me as a noobie....just got TM HOTAS a few days ago, and now want to get into this Sim after nearly a year of frustration!...lol

[159th_Viper]

.......and thanks for bearing with me as a noobie....

 

No Bother :)

 

Don't be afraid to ask a lot of questions if that is what it takes......we are always willing to help.