nele

I wish you guys test it first, and if you find it satisfactory, then I shall upload it there. The only main drawback I found is that joystick pitch sensitivity most notable in normal mode (which I "cured" locally by extending joystick deadzone). I made AI best fit for ML/MLD/P (aggressive in AB and roll), so weaker models might "suffer" a bit. MS (early) was the biggest "troublemaker" with AI landings, because the AI could not cope with such a weak engine and high wing loading :) Please continue to report. I also have some ideas for engines to overcome FE drawback for "speeders" like "Foxbat", but I will make some test flights on Fishbeds with that "propulsion" first :D Nele

Uh, maybe I am discovering a "hot water", but I think QB needs a little update. I am just finishing a major tweak of data.ini for old flogger series and I have the engine chart. I think I decyphred DryMachTableNumData and WetMachTableNumData entries as Trust-to Mach dependency of engine(s). Like, DryMachTableNumData=4 DryMachTableDeltaX=0.4 DryMachTableStartX=0.0 DryMachTableData=1.000,0.980,1.172,0.000 can be decyphred like "dry thrust is equal static at M0, is of value 0.98 at M4 and 1.172 at M0.8, is none at M0 (as AB kicks in)". This in combination with AltitudeTableNumData gives engine thrust/Mach/Altitude "curve" Ditto for WetMach. If I am correct, this is very important! I changed this for a test (punched in real, chart engine values) and it works fine up to cca. 33,000ft where it gets too much drop in thrust. If I am right, would some give me a "correction factor" to fix this? I have currently roughly replaced (test) "1" with "2" for values over M1.2 for "Flogger" series (and it is lower that is in current use, cca. 70 over 90-100% increase in Lightning F.6). Could somebody help a perfectionist, so I could release those floggers as best as I can on schedule ;) Nele P.S. If I am right, say thanks to Tumansky and MiG bueraus for very nice engine chart in the manual :)))

Yap, ditto :) There is a great R-35 engine chart, both altitude-thrust and Mach-thrust related. I have entered it for the Flogger(s) for 0-24 km altitudes in one km increments. It seems that it behaves just a little below norm, but Mach table (in my 1st post) is off by cca. 200% (rather that initially estimated 100%). This is from the sheet: WetMachTableNumData=7 (no.of entries) WetMachTableDeltaX=0.4 (M0.4 increments) WetMachTableStartX=0.0 (staring from M0) WetMachTableData=1.000,0.960,1.250,1.500,1.330,1.160,1.083 (thrust multiplier at M0, M0.4, M0.8, M1.2, M1.6, M2.0, M2.4). This gives 18-19000kgf thrust in real engine at ceiling (M.1.6). The last number for "stock" Phantoms is over 3! When "default" table is put, Floggers can do something over 10,000m. Else engines "die" in the air too poor but too thick. Maybe TK made Nytrogen atmosphere? ;) As in the Thirdwire-StreakEagle's mod for J79, "altitudetablenumdata" of R-35 in manual is a little "thinner" above 9-10,000m. I suppose StreakEagle took his from a manual, too (only he did cut it a bit fine, 91 300m-steps to cca 21,000m and I did it in 1000msteps to 24km)! In overall, I think that wetmachtable is the one that needs "corrective factor" starting from cca. M1. For values above M1 I entered "default" correction, and it behaves more-less ok, but it would good to know the real "offset behaviour".

Ok... on SimHQ I announced reworked flight model of MiG-23, that is closer to the "real stuff". I have the manuals for the bird and, also, I have quite a lot material regarding fmr Soviet aviation. I have been advised to post it here... so here it is. Enjoy! Please note that this is pure "amateur" work done to make the flight model closer to the original. If some values I have changed contradict each other, please advise and correct. The original model is done by Rafael and downloaded from Coulumn5 site. The -only- thing I have done is that I have put some values (like deflections, masses etc) to correspond behavior of a true bird (as in the manual) as much as possible with a mere "tweaks". I hope that the author of the original model (or somebody else) will find these changes worthy. If anything, read the notes in INI files since they contain references to the material and values from the MiG-23ML Aerodynamics manual and MiG-23UB Pilot manual and make better changes. Nele MiG_23ML_data.ini.txt MiG_23ML_LOADOUT.INI.txt