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IvanK

ED Beta Testers
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Everything posted by IvanK

  1. My head is hurting ! .... Re reading the Weapons manual and looking once again at the reference lines etc maybe we are doing something wrong. If you read the text of the manual (highlighted in Red in the graphic) they say you use the Air To Ground AOA chart you THEN subtract 35mils from that value this result is then added to the Ballistic table mill to become the Sight depression. So according to the above procedure (and just using the output of the AOA chart directly) I have been 35mills out.
  2. I guess its an Assumption that the displayed Status bar is FRL AOA ?
  3. 1. Tune Radio to desired UHF frequency to DF on. 2. On Radio CP select DF function 3. on NAB selector (center lower panel) select DF 4. Bearing pointer on HSI will point to UHF bearing when it transmits.
  4. I think its C of G influence
  5. From the Ancient Intercept pilots mantra: Elev =Delta(H)/R Where Delta(H) is in Hundreds of feet, Range is in NM Elev in degrees. Transposing then Delta(H) = Elev x R So lets say you have a target at 10nm and you are painting him strongly with an antenna elevation of 5 degrees up: Delta(H) = 5 x 10 = 50 Then since Delta(H) is always in 100's of feet it means the target is 50 x 100 =5000ft higher than you. So just add this to your altitude and you have his altitude. Using this another way you can Angle range against a jamming target as well if you know his Delta(H) and your elev if you are Angle locked.
  6. I can live with 16mils from Chart B :) WRT AOA due Flap I guess if you are in AUTO and they are up then agree dont correct for AOA for flap influence. I presume these charts where made for Non Auto aeroplanes with Flap in Manvr position ? Any way as I said I get more consistent bombs calculating for the release altitude/TAS using straight ballistic table depression values then ignoring any AOA. Also then drop +300 to +400' on the Altimeter based on your planned relase height. For 20 Deg passes I use +300ft worth of Altimeter lag. for 45 deg pass I use 400ft worth of Altimeter lag.
  7. Thats my understanding to. Only If doing a Manual Balance using crossfeed switch I think you turn the Low side off.
  8. As I see It Chart B gives 19mills, Chart A gives you 26mils. Then since I figure you re in Flaps Auto you need the Flap correction from chart C which gives you around -22 mils so all up (19+26) - 22 = 23mils Like you I find I get far better bombs just using the Depression straight from the Ballistic tables without any AOA correction and then taking in to account the Huge (300-400') Alt lag.
  9. This is typical of MK80 series bombs utilizing mechanical fuses like the M904/M905: Tail fusing simply refers to Arming the Tail fuse solenoid in the rack such that when the bomb is released the wire that connects the rack and the tail fuse is held by the rack. This then extracts the safe arming wire from the fuse. The fuse is then free to start its arming process. The same process occurs with nose fusing. Dual fusing is used to increase reliability in case a fuse fails.Tail fusing has nothing to do with penetration or detonation delay. WRT penetration etc this is preset generally by fixed components in the fuse train called Detonation Delay units (DDU's) these typically come in various delays. Depending on the type of target/penetration required a specific DDU is selected and fitted during the bombing up process. So on dropping the fuse goes through its arming process. Once armed the fuse train is ready to go bang. On impact the impulse goes through the DDU where it gets delayed by the DDU delay then to the explosive for the detonation. When a bomb is dropped SAFE or jettisoned the rack fuse arming solenoids are not powered so the fuse arming wires are not held. As the bomb drops the fuse arming wires leave with the bomb. Since the wires are with the bomb the fuse cannot arm and the bomb "should" not detonate on impact. In the case of MK82SE then typically the Fusing is performed by an inertia operated fuse like the FMU54. These fuses require the deceleration of the bomb caused by the drag petals opening to arm the fuse. Again a DDU can be used to delay the detonation post impact. the Drag petals are also held closed by a wire and retaining band again going routed through the Tail fuse arming solenoid on the rack. So if jettisoned the Drag petal wire and retaining pin go with the bomb ... the petals cant open so the fuse wont arm. In DCS this currently bugged as when you jettison MK82SE the fins still open ... they shouldn't.
  10. Run it as Administrator ... solved it for me
  11. In Flaps AUTO the flap scheduling is also AOA based so a healthy push for a Zero G unload should result in flaps going to zero. No need imo to consider selecting up with Flaps AUTO for an unload. Have a look in game in external view, reducing AOA and pushing to 0 G results in complete retraction of both Leading edge and trailing edge. From the F5EN manual describing Auto operation: 2.11.3.3 Auto flaps Automatic flap operation is normally used for all phases of maneuvering flight from takeoff through landing. With AUTO selected, flaps automatically position to up (0°/0°), half (12°/8°), three- quarters (18°/16°), or full (24°/20°) by signals from the AOA switching unit and the CADC. Above 550 KIAS or 0.95 IMN, the CADC prevents extension of the flaps by the thumb switch regardless of AOA. If the flaps are already extended when approaching 550 KIAS or .95 IMN, they automatically retract to full up. If the flaps fail to retract approaching this speed, a steady audible warning will sound. The audible warning is silenced by retracting the flaps or pushing the warning silence button located next to the gear lever. See figure 2-22 for auto flap shift schedule. Flaps automatically position to full down any time the gear lever is in the LG DOWN position or the gear alternate release handle is pulled. The flap indicator will also transition from AUTO to FULL. A failure within the AOA switching unit (indicated by illumination of the AOA/FLAPS caution light), or a CADC failure causes the flaps to freeze in their attained position. If only the AOA switching unit fails, control of flaps is regained through the FXD or UP settings of the thumb switch or use of the flap lever. With CADC failure, only the UP setting of the thumb switch or use of the flap lever controls
  12. Yep
  13. I would presume if you experience a Damper issue ... it goes nuts and starts putting in un-commanded damping inputs.
  14. Though the general rule is that Rwy numbers are Magnetic rounded up to the nearest digit there are lots of local exceptions exist around the world. LAX/DFW etc is typical all runways are Parallel with the same heading but to ensure no confusion Two of the runways are given arbitrary numbers that don't actually reflect the convention. In the end airfield charts/AIP will tell you both the Rwy designation and its exact Magnetic heading that is all you really need to know.
  15. Yes basically the intent would be to run in flaps Auto in all phases of flight unless you are specifically looking for Max range or endurance.
  16. The runway numbers painted on the surface in game are Magnetic rounded up to the closest digit ... as is the real world convention. Mission Editor does everything in True.
  17. Err if Variation is East you subtract the variation from the True Heading: "Variation East Magnetic Least" Mission Editor Ruler gives the runway at Senaki a True Bearing of 095 So 095 - 6 = 089 so the HSI is displaying Mag heading.
  18. In 45 Degree Dive at 500KIAS Altimeter lag is 415ft chart shows it should be 110ft.
  19. Mbot Cockpit Altimeter 7000ft. Status Bar in external view 6585ft. So a diff of 415ft. Looking at Noodles error chart that would imply a Bomb around 100ft long. So in a 45 Deg dive it would seem the Alt lag is around 400ft. Weap manual gives 110ft Altimeter lag. That confirms your finding and also in my eye explains the impact points. Off to try releasing at 7400ft Alt :)
  20. Yes MBOT on the cockpit Altimeter. Will record a Track to see what that is on the status bar. Noodle Ref Pilot errors. Thanks for the table ... Yep I am sure there are some in there (Been 30 years since I last dropped a manual bomb .... but it floods back :). Anyway I think I am getting pretty close to the planned release parameters I planned on. Bombs are all going pretty much in the same hole around 100ft over the top. if they were all over the place I would think it was me.
  21. The carriers and certain other Navy ships should also have TACAN.
  22. Did the numbers on 10 Deg High Drag pass Again pretty much all bombs hit around 100ft long. No allowance for Altimeter lag Same with 20Deg LD 2500ft release. Using calculated depression values all bombs hit around 100ft long. No allowance for altimeter lag. Taking around 20mills off the calculated figure results in consistently good bombs. Interestingly that is close to the AOA correction in the calculations.
  23. Is this correct ? The MK82SE in game are depicted with both Nose and Tail fuses. If I only arm the Nose fuse the High Drag fins still open. I would have thought that if ONLY the nose fuse is armed the bomb would drop slick as the Arming wire to the Snakeye HD fin retainer would not have been energized so the wire and retainer would remain closed and go with the bomb so the bomb goes slick. JETTISON OF MK82SE INCORRECT Also If you are carrying MK82SE on the underwing pylons and press EMERG JETTISON button they also go HD on jettison. Again I don't believe this is correct as the Tail (and nose) fuse arming solenoids are not energized on jettison. So the Tail wires should go with the bomb the fins remain closed and no arming occurs.
  24. Ok went back using 450KCAS as the release Air speed (to achieve 500KTAS) also decided to drop right on 7000ft ignoring the calculated Altimeter Lag (figuring maybe the Sim doesn't really have any) Still using 141mills. Much better bombs. Used the old airstrip on the coast just north of Batumi using the runway intersection as the aimpoint to get some yardstick. Got consistent bombs 1 runway width over the top. So roughly 50feet 12 O'clock bombs..... pretty good for 45deg 7000ft release. also pre trimmed nose heavy before the roll in. If I didnt do this the trim couldn't keep up with the change required going down the dive requiring forward stick to control the reticle drift up to the target. therefore in a slight bunt .... which would also tend to throw the bombs over the top. So WEAP manual ballistic tables seem ok to use in the SIM. Though I don't think Altimeter lag needs to be allowed for.
  25. Err yes dumb error on my part will aim for slower release IAS (450) to achieve 500TAS at 7000ft
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