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Frederf

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  1. Frederf's post in Is it possible to declutter the HSD/HAD? was marked as the answer   
    There can be up to 3 navigational routes, flight plans if you will. DCS only populates NAV1 from the mission editor. Lines1-4 have traditionally been up to 5 waypoint-defined connected line segments each which could outline boxes or other shapes on the HSD.
    We don't haves NAV2, NAV3, or any LINE yet so there's nothing to show/hide. NAV1 should show/hide the flight plan route though.
  2. Frederf's post in F16 AP3 Way Switch (Solved) was marked as the answer   
    In short, the switch is working correctly. A bit of understanding will help explain why.
    The F-16 pitch channel autopilot switch is a complicated switch. It's spring-loaded to return to center with solenoid mechanisms to keep the switch stuck in the up/down positions based on computer logic. This means if the switch returns to center when pilot finger pressure against the spring is removed depends on the solenoid state. Your three-way device switch is logically two buttons associated with the up and down positions. With switch up DX27 is pressed. With switch down DX28 is pressed. With switch center no button is pressed.
    When the solenoids are unpowered the switch will fall to the center position by spring force unless the pilot is actively holding the switch with his finger. DCS is interpreting buttons 27 and 28 as the pilot's finger pressing the switch into the up and down positions. Releasing button 27 (28) represents the pilot ceasing to push the switch to the up (down) position.
    DCS is not interpreting release of those buttons as is actively returning the switch to center by force. Ceasing pressing the switch results in the switch falling back to center only if the solenoids are unpowered. Of course a real pilot has an additional option: actively grab the switch and pull it to center regardless of the solenoid magnetic sticking. That would be a distinct action like "Autopilot PITCH Switch - A/P OFF" which your controller doesn't naturally have a separate button for.
    It is possible to construct a DCS action which releasing the button commands the switch into the center position. The "Autopilot ROLL Switch (special) - HDG SEL/ATT HOLD" action is such an example. Because of the complex nature of the switch an explicit "move this switch to center" action wasn't made. Looking at the three commands in the .lua files it looks like there isn't a specific way to get the same behavior.
    My solution was to write a TARGET script which pulsed the switch on and off and made the center position command the center position with a specific separate button.
    Usually there is a way to construct custom .lua input actions so that it does something on the down stroke and something else on the up stroke (release). The default commands are:
    ALT down 1, up 0 OFF down -1, up none ATT down -1, up 0 What you want is some kind of:
    ALT down 1, up something which makes the switch go to center ATT down -1, up something which makes the switch go to center I'm looking into how to make that. EDIT: OK, it's somewhat simple. The inputs 1, 0, -1 are relative switch movements. +1 goes up a state, 0 remains a state, -1 goes down a state. So this is my Quaggle's custom input section. I hope that helps.
    return {
        keyCommands = {
            {    down = control_commands.ApPitchAlt_EXT, up = control_commands.ApPitchAlt_EXT,   cockpit_device_id = devices.CONTROL_INTERFACE,    value_down =  1.0,    value_up = -1.0,    name = _('AP Pitch - ALT'),        category = { _('Custom')}},
              {    down = control_commands.ApPitchAlt_EXT,                                                                            cockpit_device_id = devices.CONTROL_INTERFACE,    value_down = -1.0,                              name = _('AP Pitch - Center'),        category = { _('Custom')}},
              {    down = control_commands.ApPitchAtt_EXT, up = control_commands.ApPitchAtt_EXT,   cockpit_device_id = devices.CONTROL_INTERFACE,    value_down = -1.0,    value_up =  1.0,    name = _('AP Pitch - ATT'),        category = { _('Custom')}}
        }
    }
  3. Frederf's post in Fusing delay was marked as the answer   
    Depends on the terminal speed, impact angle, and the post-impact slowdown. 590 knots is 1000 fps which is 1' per ms. I did a test and got about 1500 fps with a GBU-31v3 which is about 1.5' per ms.
    For terminal angle divide by the sine of the angle from horizontal, e.g. +15% for 60° +40% for 45°.
    Slowdown is the most nuanced. A thin, soft building won't reduce speed as much as something hard. If you knew the burying depth for a given impact (e.g. 20' at 1000fps) then you could assume it was losing 50fps per foot of hard material. Maybe think a commercial high rise is 3' worth of hard surface every floor so 6' total. Take the average of the initial impact speed, final speed 1000+900/2 = 950. Tin shack practically nothing, concrete bunker much more.
    So you want to go 25' (one and a half floors) through say 6' of hard material at 1300fps average on a 60 degree impact angle. T = 25/1300 * 1/sin(60) = 22ms. That seems quite a small delay. I think 60-180ms is more common historically but that might be against hardened targets which would bring down the average velocity a bunch. 5ms per floor sounds too short as it would have to be covering an average of 2000fps of height change.
    And of course this all depends what FMU is on the bomb. If it's -152 then you can program it on the fly. If it's -148 then your SMS settings don't change anything.
  4. Frederf's post in How to engage autopilot (or bug?) was marked as the answer   
    Your AP paddle is stuck on. I take over at :56 and depress/release the AP paddle and it resumes normal operation.
  5. Frederf's post in Inputting precise coordinates for PP mode was marked as the answer   
    You don't just hit enter twice, well the coordinate element is a two stage process. You enter DD°MM'SS'' and then in the second entry window is for the .SS'' fraction. By hitting enter twice you are essentially entering DDD°MM'SS.00'' and not a more precise location. Try for example to enter N 34°12'55.76''.
  6. Frederf's post in DED:HTS PAGE was marked as the answer   
    MAN means manual threat entries for the HTS. When there are entries in the table OSB2 will have "MAN" label and can be selected as the "12th Class". Entries on the HTS MAN page are searched for if MAN is highlighted on the THRT subpage.
    F-16 HTS Manual Entry.trk
    https://forum.dcs.world/topic/289473-hts-ded-page/
     
  7. Frederf's post in Can't see bogies on radar was marked as the answer   
    Your antenna elevation is pegged to the minimum. The little blue T on the left side is low and the altitude at cursor range are -40 and -70 top/bottom.
  8. Frederf's post in What is the difference between DTT and TWS? Will DTT trigger RWR alarm? was marked as the answer   
    DTT is just the two-target version of SAM and the same principles apply.
    In real life... maybe because it's theoretically possible to distinguish between the two based on signal. There is no such thing as "the RWR" because there are dozens if not hundreds of radar warning equipment worldwide throughout history configured by many nations. Even if a particular equipment could discern if it was being "soft locked" it may not be programmed to give an alert until a certain signal strength or ever. Similarly even a search detection could trigger an alarm of the operator chooses to program it that way.
    My understanding is that SAM (unless it reverts to STT) never results in an RWR alert in DCS and I would expect DTT to be no different.
  9. Frederf's post in How do I get the map to show up on the TSD? was marked as the answer   
    Chart scales have an associated chart imagery layer slot associated with that scale.  Some of the slots have chart imagery loaded and some do not. You can adjust the map range to chart scale association to use a chart scale with imagery.
    To change the displayed scale for a certain map range:
    TSD displayed MAP (B4) select Range (R1, R2) set desired range scale TYPE CHART (L2) verify SCALE (L3) select Option (L3-L6, R3-R6) select desired scale MAP (B4) deselect Whenever the map range is changed the associations will revert to the default.
    Caucuses has the following scale imagery:
    1:5,000,000 1:2,000,000 1:1,000,000 1:500,000 1:250,000 Syria has the following scale imagery:
    1:1,000,000 1:500,000 The scale menu realistically won't show or choose chart layers with CADRG graphics that it doesn't have loaded so the blank layer issue won't happen in reality. I also think that the scale association is memorized when changing range settings but I'm not sure on that.
  10. Frederf's post in Battery Voltage was marked as the answer   
    All I can find is that you'll get battery fault messages on the EUFD.
  11. Frederf's post in F16 viper what is the speed brake called ? was marked as the answer   
    SPBRK I think. If you use the HOTAS category filter the length shrinks to a reasonably short list.
  12. Frederf's post in "Route desired" to a waypoint ? was marked as the answer   
    Turning the CRS knob on the HSI will provide crosstrack deviation relative to the entered course by CDI position in a similar way to say the A-10 or any civil VOR instrument. There's nothing specific on the HUD about steering for a particular selected course to approach.
  13. Frederf's post in TGP Maverick offset was marked as the answer   
    You gotta calibrate the LOSs between that launchers and TGP.
    Point track an object with TGP and missile manually and press the "BSGT" button on the WPN format to save the calibration. Repeat for all stations with missiles.
    Hot start airplanes simulate that the pilot has already done this for you before you took control.
  14. Frederf's post in Extinguish fire was marked as the answer   
    None. With a two engine airplane the remaining engine has some utility. With one engine the crash takes care of the fire.
  15. Frederf's post in Does F16C have the function of automatically switching the navigation point? was marked as the answer   
    When closure positive switches to closure negative inside 2nm polar distance from steerpoint and master mode is not AG and automatic steerpoint sequencing is enabled then the steerpoint will automatically sequence. Inhibiting sequencing in AG master mode prevents undesired changing during air to ground attacks.
     
    To enable sequencing use the DCS control right to SEQ when on the DED STPT page. The function works but what is missing is the capital "A" after the steerpoint number on the CNI DED page showing the feature is enabled.
  16. Frederf's post in Anyway to CZ without TGP? was marked as the answer   
    The CZ function is present on AG TGP and AG FCR pages (even when off, but that's currently missing). If you can find the CZ button and click it I've never had it not do what it's supposed to.
    The way you diagnose CZ is by doing small slews and pressing CZ. If it keeps putting the FCR cursors back in the same spot then there's nothing wrong with CZ. Either your spot's wrong or your INS is. If each CZ press acts like nothing happened and the slews pile on top of each other that's a problem with CZ.
  17. Frederf's post in When TWS antenna control doesn't work, probably you have a cursor target. was marked as the answer   
    With TWS cursor snap to system track antenna elevation is automatic. Without TWS cursor snap to system track antenna elevation is manual. I think if an AIM-120 is in flight that also counts as a "priority target" which will also do automatic elevation.
    I thought it was bug as well for auto/man antenna control decision but if you cursor snap to a system track (no bug) it'll auto center elevation on that. However if a system track is present and the FCR cursors are not snapped then you have manual antenna elevation (unless an AIM-120 needs to include a particular target).
  18. Frederf's post in What actually is DTOS mode in the F16? was marked as the answer   
    Direct Targeting Optical Sight. Dive toss. It's really, really, really similar to "EO VIS" mode of the Maverick. I would say that EO VIS is really "DTOS for Maverick" but same difference. If you've ever used the TDC in the A-10C and then attacked CCRP, similar to that too but more streamlined. There's a box that starts on the FPM, you can slew it first, designate it on the ground with TMS forward or weapon release, can slew it on the ground after if you want, and it's CCRP type aiming through the rest of the attack. In the visual/preplanned split it counts as visual (FCR will be AGR).
    It can be handy to toss with, especially CBUs but it's just a sort of "visually-designated CCRP". CCIP can do that too with the delay cue stuff but you'd have to fly the pipper on where with DTOS you have a bit more flexibility putting the box places with the cursor switch.
  19. Frederf's post in GM Radar and GBU-31 Help? was marked as the answer   
    "TMS up to create a SPI" This is wrong thinking. SPI was at radar cursors the same as before or after designation. Since there is no actual FTT implemented yet it's of no use to designate the GM/SEA radar modes. Just slew the cursors over the target and use that. Don't TMS forward in most cases. It's unnecessary in most situation and can only cause problems.
  20. Frederf's post in Shooting multiple mavericks simultaneously? was marked as the answer   
    The maximum possible number of Maverick to launch with one WR press is two. They both must be tracking simultaneously from paired stations (e.g. 3/7) and "RP 2" must be selected. Due to an issue this currently isn't possible if LAU-88 or EO VIS or EO BORE is used.
    AG master mode SMS OSB 2 (x2) "PRE" SMS OSB 8 then OSB 19 then OSB 2 "RP 2" DMS down WPN SOI Refine crosshairs on first target and TMS forward to track MSL STEP Refine crosshairs on second target and TMS forward to track MSL STEP to confirm both missiles are within firing parameters (optional) Weapons release button hold until both missiles fire (short delay) F16 EO RP2.trk
    You could use two points to designate two targets. For example if STPT 1 has first target then simply TMS forward to track first missile and INC to STPT 2 and TMS forward to track second missile. You're allowed to change the target point in the middle of the process. Here's an example of two steerpoints which are near two targets with a steerpoint change in the middle.
    F16 EO RP2 STPT.trk
  21. Frederf's post in TWS cycling targets with TMS was marked as the answer   
    TMS right (short) only steps between system tracks. By default all tracks are tank tracks (not system). To be steppable/snappable they have to be elevated. Elevation can happen by cursor and TMS up (no bug) or if there are zero system tracks by TMS right (elevates up to 10). Un-elevation is by TMS down (no bug).
    It's really hard to tell what's going on with the Link 16 layer on top which is why it's a good idea to learn how it work with MIDS switched off. Here's a track showing manipulations of the TWS radar and elevating/un-elevating/stepping tracks by TMS up/right/down.
    F16 TWS step.trk
  22. Frederf's post in HARM selective jettison was marked as the answer   
    In general AG missiles have two methods of jettison:
    Unguided launch of the missile from the rail Jettison of rack which holds launcher rail On SJ SMS page often you can cycle through multiple modes of jettison for a station. Just keep pressing the OSB and different things will highlight. For example Mk82 on TER you can jettison a bomb from TER or you can jettison TER from airplane. Here is a track showing jettison ofHARM by unguided launch, then LAU-118+HARM, then LAU-118 alone. The choice is up to the pilot.
    It's not possible to drop a missile off a rail. They can only slide off the rail in a forward direction. When loading the prongs on top of the missile are loaded by sliding it backward on a rail and then a pin locks it in place so it doesn't fall off. During launch the rocket motor breaks the pin and the missile slides forward again.
    Master arm switch is for a weapon to be armed with its targeting electronics operating and fuze ready. Stuff can still come off the airplane with master arm in safe position: chaff, flares, jettisoned fuel tanks, jettisoned stores, etc. A missile is relatively safe when fired unarmed. Obviously if it hits you it would hurt but the warhead doesn't do the same thing hitting the ground unarmed compared with armed.
    F-16 HARM jett options.trk
  23. Frederf's post in ILS Director lateral offset at some airports was marked as the answer   
    There are two course settings for ILS, the HSI one and the DED one, and they're fully independent. For some reason in DCS they are acting semi-connected. Anyway, you've set course 091°. It's more like 079°. You can't trust the ruler or the ME label as those are in true/ruler direction and not magnetic.
  24. Frederf's post in F 16 FCR CNTL Page was marked as the answer   
    Automatic control of radar power for LPI purposes
  25. Frederf's post in HUD change? was marked as the answer   
    ILS command steering cue, the mode when the airplane hasn't captured the glideslope from below and is getting lateral guidance.
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