DSMS profile resets itself...and TGP moves on its own?

[Nealius]

I am having issues with the DSMS profiles of some weapons and CDU settings resetting themselves at some point after takeoff.

 

On the ramp I set CBU to ripple single, 2, with 200 foot spacing. Yes, I hit the "save" OSB. In the CDU I set the steerpoint stuff to manual so that it doesn't switch when I overfly the target. When I rolled in on the target to release my CBUs only one came off the rail. After coming off the target I noticed my steerpoint had somehow changed. I checked my DSMS profiles and my CDU settings, and at some point after takeoff everything had gone back to default settings.

 

On an unrelated note, whenever I come out of a turn and line up on the target, my TGP will do this barrel-roll thing and move off the target. It makes lining up the gun in an urban environment a pain in the butt.

 

I don't have a track of the above mentioned, but it happens frequently so the next time I will upload a track file.

[benargee]

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EDIT

 

Ok i added a track, and i replicated as close as i could to your description

 

First i demonstrate dsms setup on the ramp after startup (i start up my own way).

Then i succesfully bomb an area with proper profile, 2 at 200 feet.

and last i demonstrate gimbal roll area of tgp.

--------------------------------------

 

 

does the tgp say "gimbal roll"? or something like that?

try as much as you can to keep the target away from the gun line to prevent gimball roll.

your target should be lower assuming you have the correct gun sight up.

 

what cbu? 87, 97, 103, 105?

 

are you in CCRP? CCIP?

 

how long are you holding down the pickle button?

 

are you setting an SPI correctly?

 

sorry i read your post again, some of those questions might be e relevant but feel free to answer anyway other than the tgp one and bomb type.

 

 

 

and yes, that track will be very helpful. startup sequence might be key, try to replicate.

gbu forum demo 123.trk

Edited April 4, 2013 by benargee
added track

[Nealius]

For the DSMS, that one is interesting. I had 2x CBU97s and 6x Mk82AIRs.

 

CBU97: CCIP, RIP SGL, 2, 200 feet

Mk82AIR: CCRP, RIP SGL, 3, 75 feet

 

Only the CBU's profile was reset to CCRP, SGL, 1, 75 feet. The Mk82 profile was untouched. It is possible that I forgot to hit the save OSB but highly unlikely.

 

On occasion I do notice "gimbal roll" on the TGP, but that doesn't always seem to accompany its random movement. Sometimes I will roll out of a turn and the TGP will be right on its target, then after about a second or two of level flying towards the target it will suddenly move clockwise and go off target.

 

As for the CDU's automatic waypoint advancement, I figured out that I have to set FPM to manual after INS alignment. If I set to manual before selecting NAV LSK it will revert to auto after takeoff. The checklist says to verify/enter CDU data before pressing the NAV LSK :music_whistling:

Edited April 4, 2013 by Nealius

[Flagrum]

For the DSMS, that one is interesting. I had 2x CBU97s and 6x Mk82AIRs.

 

CBU97: CCIP, RIP SGL, 2, 200 feet

Mk82AIR: CCRP, RIP SGL, 3, 75 feet

 

Only the CBU's profile was reset to CCRP, SGL, 1, 75 feet. The Mk82 profile was untouched. It is possible that I forgot to hit the save OSB but highly unlikely.

Sounds as if you were using manual profiles (indicated by a leading "M/" before the weapon name)? I.e. if you change the settings by directly choosing the weapon and going to its profile page. These profile settings last only as long as the profile is active. You have to change the profile by going to the INV page to be permanent (for that flight).

[Nealius]

Sounds as if you were using manual profiles (indicated by a leading "M/" before the weapon name)? I.e. if you change the settings by directly choosing the weapon and going to its profile page. These profile settings last only as long as the profile is active. You have to change the profile by going to the INV page to be permanent (for that flight).

 

The INV page doesn't change ripple quantity or spacing though, does it? My method for editing the profiles for both the CBUs and the Mk82s was exactly the same, but only one of them lost the settings.

 

Could selecting the weapons, then pressing PROF and VIEW PRO react differently than just going straight to PROF (without selecting a weapon) and then selecting the weapon from the list and going into VIEW PRO?

Edited April 4, 2013 by Nealius

[Flagrum]

The INV page doesn't change ripple quantity or spacing though, does it? My method for editing the profiles for both the CBUs and the Mk82s was exactly the same, but only one of them lost the settings.

 

Could selecting the weapons, then pressing PROF and VIEW PRO react differently than just going straight to PROF (without selecting a weapon) and then selecting the weapon from the list and going into VIEW PRO?

Yes, to both questions. :-)

 

You are right, I confused the INV page with the PROF page without selecting a weapon beforehand (sorry!). The INV page changes some other parameters independently of any profile.

 

When you select a weapon and go to it's profile page, your settings are only temporary ("M/...").

 

If you haven't selected a weapon, go to the profile page and select a specific profile and press VIEW PROF, your changes there will be saved in that profile ad will be used whenever you select that profile.

[Eddie]

Without a track I can't be sure, but it sounds like you're "selecting" weapons by pressing the corresponding OSBs with DSMS displayed on the MFCD. Especially after your last post where you talk of selecting weapons and then selecting profiles.

 

This is where you are going wrong. You do not (or should not, I should say) select a weapon, at all, ever. You always select a profile via either the DSMS, or preferably via DMS left/right.

 

When a weapon profile is selected the DSMS calls up all the approriate weapon stations for that profile, and also the release parameters such as DTOF, ripple settings, min alt etc.

 

By "selecting" weapons directly via the DSMS inventory pages you create a blank manual profile each time, if you set parameters in this manual profile and save it, those parameters will only be loaded again if you select the profile via DMS R/L as described above.

[Nealius]

Without a track I can't be sure, but it sounds like you're "selecting" weapons by pressing the corresponding OSBs with DSMS displayed on the MFCD. Especially after your last post where you talk of selecting weapons and then selecting profiles.

 

This is where you are going wrong. You do not (or should not, I should say) select a weapon, at all, ever. You always select a profile via either the DSMS, or preferably via DMS left/right

 

DMS left/right selects a weapon the same way it would if you hit the corresponding OSBs, so I'm not sure what you mean. I guess I should be going into PROF, then selecting the weapon from the list, and then going into VIEW PRO?

 

Also, can you confirm that going into the CDU's FPM page and setting to MAN will automatically revert back to AUTO after hitting the NAV LSK when INS alignment is complete? I am using the TO 1A-10C-76CL-1 checklist and it says to verify/enter CDU data before completing alignment and pressing the NAV LSK but I find that reversing these steps prevents the FPM page from reverting to AUTO.

[Eddie]

DMS left/right selects a weapon the same way it would if you hit the corresponding OSBs, so I'm not sure what you mean.

 

No it does't, that is the point. Selecting via DMS L/R is the same as pulling up the profile menu on the DSMS and selecting a profile. Selecting a weapon from the main DSMS weapon inventory page creates a new manual profile each time.

 

The really simple version is, NEVER select a weapon my pressing the OSB next to it on the DSMS. There are no advantages to doing to whatsoever.

[Nealius]

No it does't, that is the point. Selecting via DMS L/R is the same as pulling up the profile menu on the DSMS and selecting a profile. Selecting a weapon from the main DSMS weapon inventory page creates a new manual profile each time.

 

The really simple version is, NEVER select a weapon my pressing the OSB next to it on the DSMS. There are no advantages to doing to whatsoever.

 

Something must be amiss here. DMS left/right cycles through the weapons and selects them in the same way as pressing the corresponding OSBs on the main DSMS page, as demonstrated when I pull up the DSMS page and press DMS left/right in the attached track. DMS left/right does not pull up the profile menu for me. After cycling through all the weapons using DMS left/right I go back to "weapons off" and edit the profiles. I think I am doing it correctly this time, but I am not sure.

 

Note that on the CDU I go into the FPM page and set it to MAN before completing INS alignment and selecting the NAV LSK. After takeoff I go back into the FPM page and it has reverted to AUTO and I have to change it back to MAN again. I don't know if hitting the NAV LSK is causing the reset or if switching the knob from mission to flight plan is the culprit.

 

My sequence gets messy after engine start. I'm used to going panel-by-panel in a somewhat clockwise fashion in the F-16. I feel like a rubber ball bouncing around in the cockpit with the A-10 :lol:

Edited April 4, 2013 by Nealius

[Eddie]

Something must be amiss here. DMS left/right cycles through the weapons and selects them in the same way as pressing the corresponding OSBs on the main DSMS page, as demonstrated when I pull up the DSMS page and press DMS left/right in the attached track. DMS left/right does not pull up the profile menu for me. After cycling through all the weapons using DMS left/right I go back to "weapons off" and edit the profiles. I think I am doing it correctly this time, but I am not sure.

 

Nothing is amiss, you're just not understanding the DSMS.

 

Selecting a profile, calls up the relevant weapon for that profile, it does not pull up the profile menu, because it IS already selecting the profile.

 

You are not cycling through weapons, you are cycling through weapon profiles. Try loading MK-82s and then creating several profiles for them, you will see that DMS L/R will cycle through them all in turn, in the order they are sorted in the profile menu.

 

To reiterate, you DO NOT select weapons, you select weapon profiles. The profile contains the release parameters, for a specific weapon (including fusing).

 

I think your Falcon experience is actually hurting you here. In the Viper (as modeled in Falcon) you select a weapon, and then a profile (either profile 1 or 2). In the Hog you just select a profile, the DSMS already associates that profile with a specific weapon.

[Nealius]

Yeah, I am definitely not understanding the profiles. The training missions are a little misleading as they always say "select weapon x by pressing DMS right."

 

How do I create multiple profiles for the same weapon?

[Eddie]

Pull up the profile menu (the same one you use when you change ripple settings etc) enter a new profile name, and then change at least one parameter in the profile. Then just click save and a new profile will be created.

 

See the video below.