# A3XX FMGC/Autoflight # Joshua Davidson (it0uchpods) and Jonathan Redpath (legoboyvdlp) ######################################### # Copyright (c) it0uchpods Design Group # ######################################### ################## # Init Functions # ################## setprop("/FMGC/internal/overspeed", 338); setprop("/FMGC/internal/minspeed", 204); setprop("/position/gear-agl-ft", 0); setprop("/FMGC/internal/mng-spd", 157); setprop("/FMGC/internal/mng-spd-cmd", 157); setprop("/FMGC/internal/mng-kts-mach", 0); setprop("/FMGC/internal/mach-switchover", 0); setprop("/it-autoflight/settings/reduc-agl-ft", 3000); setprop("/it-autoflight/internal/vert-speed-fpm", 0); setprop("/it-autoflight/output/fma-pwr", 0); setprop("/instrumentation/nav[0]/nav-id", "XXX"); setprop("/instrumentation/nav[1]/nav-id", "XXX"); setprop("/FMGC/internal/ils1-mcdu", "XXX/999.99"); setprop("/FMGC/internal/ils2-mcdu", "XXX/999.99"); setprop("/FMGC/internal/vor1-mcdu", "XXX/999.99"); setprop("/FMGC/internal/vor2-mcdu", "999.99/XXX"); setlistener("/sim/signals/fdm-initialized", func { var database1 = getprop("/FMGC/internal/navdatabase"); var database2 = getprop("/FMGC/internal/navdatabase2"); var code1 = getprop("/FMGC/internal/navdatabasecode"); var code2 = getprop("/FMGC/internal/navdatabasecode2"); var gear1 = getprop("/gear/gear[1]/wow"); var gear2 = getprop("/gear/gear[2]/wow"); var state1 = getprop("/systems/thrust/state1"); var state2 = getprop("/systems/thrust/state2"); var flaps = getprop("/controls/flight/flap-pos"); var dep = getprop("/FMGC/internal/dep-arpt"); var arr = getprop("/FMGC/internal/arr-arpt"); var n1_left = getprop("/engines/engine[0]/n1"); var n1_right = getprop("/engines/engine[1]/n1"); var flaps = getprop("/controls/flight/flap-pos"); var modelat = getprop("/modes/pfd/fma/roll-mode"); var mode = getprop("/modes/pfd/fma/pitch-mode"); var gs = getprop("/velocities/groundspeed-kt"); var alt = getprop("/instrumentation/altimeter/indicated-altitude-ft"); var aglalt = getprop("/position/gear-agl-ft"); var cruiseft = getprop("/FMGC/internal/cruise-ft"); var cruiseft_b = getprop("/FMGC/internal/cruise-ft") - 200; var newcruise = getprop("/it-autoflight/internal/alt"); var phase = getprop("/FMGC/status/phase"); var state1 = getprop("/systems/thrust/state1"); var state2 = getprop("/systems/thrust/state2"); var wowl = getprop("/gear/gear[1]/wow"); var wowr = getprop("/gear/gear[2]/wow"); var targetalt = getprop("/it-autoflight/internal/alt"); var targetvs = getprop("/it-autoflight/input/vs"); var targetfpa = getprop("/it-autoflight/input/fpa"); var vertmode = getprop("/modes/pfd/fma/pitch-mode"); var reduc_agl_ft = getprop("/it-autoflight/settings/reduc-agl-ft"); var locarm = getprop("/it-autopilot/output/loc-armed"); var apprarm = getprop("/it-autopilot/output/appr-armed"); var gear0 = getprop("/gear/gear[0]/wow"); var fd1 = getprop("/it-autoflight/input/fd1"); var fd2 = getprop("/it-autoflight/input/fd2"); var spd = getprop("/it-autoflight/input/spd-kts"); var hdg = getprop("/it-autoflight/input/hdg"); var alt = getprop("/it-autoflight/input/alt"); var altitude = getprop("/instrumentation/altimeter/indicated-altitude-ft"); var flap = getprop("/controls/flight/flap-pos"); var freqnav0uf = getprop("/instrumentation/nav[0]/frequencies/selected-mhz"); var freqnav0 = sprintf("%.2f", freqnav0uf); var namenav0 = getprop("/instrumentation/nav[0]/nav-id"); var freqnav1uf = getprop("/instrumentation/nav[1]/frequencies/selected-mhz"); var freqnav1 = sprintf("%.2f", freqnav1uf); var namenav1 = getprop("/instrumentation/nav[1]/nav-id"); var freqnav2uf = getprop("/instrumentation/nav[2]/frequencies/selected-mhz"); var freqnav2 = sprintf("%.2f", freqnav2uf); var namenav2 = getprop("/instrumentation/nav[2]/nav-id"); var freqnav3uf = getprop("/instrumentation/nav[3]/frequencies/selected-mhz"); var freqnav3 = sprintf("%.2f", freqnav3uf); var namenav3 = getprop("/instrumentation/nav[3]/nav-id"); var freqadf0uf = getprop("/instrumentation/adf[0]/frequencies/selected-khz"); var freqadf0 = sprintf("%.2f", freqadf0uf); var nameadf0 = getprop("/instrumentation/adf[0]/ident"); var freqadf1uf = getprop("/instrumentation/adf[1]/frequencies/selected-khz"); var freqadf1 = sprintf("%.2f", freqadf1uf); var nameadf1 = getprop("/instrumentation/adf[1]/ident"); var ias = getprop("/instrumentation/airspeed-indicator/indicated-speed-kt"); var mach = getprop("/instrumentation/airspeed-indicator/indicated-mach"); var ktsmach = getprop("/it-autoflight/input/kts-mach"); var mngktsmach = getprop("/FMGC/internal/mng-kts-mach"); var mng_spd = getprop("/FMGC/internal/mng-spd"); var mng_spd_cmd = getprop("/FMGC/internal/mng-spd-cmd"); var kts_sel = getprop("/it-autoflight/input/spd-kts"); var mach_sel = getprop("/it-autoflight/input/spd-mach"); var srsSPD = getprop("/it-autoflight/settings/togaspd"); var overspeed = getprop("/FMGC/internal/overspeed"); var minspeed = getprop("/FMGC/internal/minspeed"); var mach_switchover = getprop("/FMGC/internal/mach-switchover"); var decel = getprop("/FMGC/internal/decel"); var mng_alt_spd_cmd = getprop("/FMGC/internal/mng-alt-spd"); var mng_alt_spd = 0; var mng_alt_mach_cmd = getprop("/FMGC/internal/mng-alt-mach"); var mng_alt_mach = 0; var mng_spd_cmd = getprop("/FMGC/internal/mng-spd-cmd"); var mng_spd = getprop("/FMGC/internal/mng-spd"); }); var FMGCinit = func { setprop("/FMGC/status/to-state", 0); setprop("/FMGC/status/phase", "0"); # 0 is Preflight 1 is Takeoff 2 is Climb 3 is Cruise 4 is Descent 5 is Decel/Approach 6 is Go Around 7 is Done setprop("/FMGC/internal/overspeed", 338); setprop("/FMGC/internal/mng-spd", 157); setprop("/FMGC/internal/mng-spd-cmd", 157); setprop("/FMGC/internal/mng-kts-mach", 0); setprop("/FMGC/internal/mach-switchover", 0); setprop("/it-autoflight/settings/reduc-agl-ft", 3000); setprop("/FMGC/internal/decel", 0); setprop("/FMGC/internal/loc-source", "NAV0"); setprop("/FMGC/internal/optalt", 0); phasecheck.start(); various.start(); various2.start(); } ############# # TO Status # ############# setlistener("/gear/gear[1]/wow", func { flarecheck(); }); setlistener("/gear/gear[2]/wow", func { flarecheck(); }); var flarecheck = func { gear1 = getprop("/gear/gear[1]/wow"); gear2 = getprop("/gear/gear[2]/wow"); state1 = getprop("/systems/thrust/state1"); state2 = getprop("/systems/thrust/state2"); flaps = getprop("/controls/flight/flap-pos"); if (gear1 == 1 and gear2 == 1 and (state1 == "MCT" or state1 == "MAN THR" or state1 == "TOGA") and (state2 == "MCT" or state2 == "MAN THR" or state2 == "TOGA") and flaps < 4) { setprop("/FMGC/status/to-state", 1); } if (getprop("/position/gear-agl-ft") >= 55) { setprop("/FMGC/status/to-state", 0); } if (gear1 == 1 and gear2 == 1 and getprop("/FMGC/status/to-state") == 0 and flaps >= 4) { setprop("/controls/flight/elevator-trim", 0.0); } } ############### # MCDU Inputs # ############### var updateARPT = func { dep = getprop("/FMGC/internal/dep-arpt"); arr = getprop("/FMGC/internal/arr-arpt"); setprop("/autopilot/route-manager/departure/airport", dep); setprop("/autopilot/route-manager/destination/airport", arr); if (getprop("/autopilot/route-manager/active") != 1) { fgcommand("activate-flightplan", props.Node.new({"activate": 1})); } } setlistener("/FMGC/internal/cruise-ft", func { setprop("/autopilot/route-manager/cruise/altitude-ft", getprop("/FMGC/internal/cruise-ft")); }); ############################ # Flight Phase and Various # ############################ var phasecheck = maketimer(0.2, func { n1_left = getprop("/engines/engine[0]/n1"); n1_right = getprop("/engines/engine[1]/n1"); flaps = getprop("/controls/flight/flap-pos"); modelat = getprop("/modes/pfd/fma/roll-mode"); mode = getprop("/modes/pfd/fma/pitch-mode"); gs = getprop("/velocities/groundspeed-kt"); alt = getprop("/instrumentation/altimeter/indicated-altitude-ft"); aglalt = getprop("/position/gear-agl-ft"); cruiseft = getprop("/FMGC/internal/cruise-ft"); cruiseft_b = getprop("/FMGC/internal/cruise-ft") - 200; newcruise = getprop("/it-autoflight/internal/alt"); phase = getprop("/FMGC/status/phase"); state1 = getprop("/systems/thrust/state1"); state2 = getprop("/systems/thrust/state2"); wowl = getprop("/gear/gear[1]/wow"); wowr = getprop("/gear/gear[2]/wow"); targetalt = getprop("/it-autoflight/internal/alt"); targetvs = getprop("/it-autoflight/input/vs"); targetfpa = getprop("/it-autoflight/input/fpa"); vertmode = getprop("/modes/pfd/fma/pitch-mode"); reduc_agl_ft = getprop("/it-autoflight/settings/reduc-agl-ft"); locarm = getprop("/it-autopilot/output/loc-armed"); apprarm = getprop("/it-autopilot/output/appr-armed"); gear0 = getprop("/gear/gear[0]/wow"); if ((((n1_left >= 70) and (n1_right >= 70)) or (gs > 90)) and (mode == "SRS") and gear0 == 1 and phase == 0) { setprop("/FMGC/status/phase", "1"); setprop("/systems/pressurization/mode", "TO"); } if ((alt >= reduc_agl_ft) and (alt <= cruiseft) and (phase == "1") and (phase != "4") and (mode != "SRS")) { setprop("/FMGC/status/phase", "2"); } if (alt >= cruiseft_b and phase == "2" and (mode == "ALT" or mode == "ALT*" or mode == "ALT CRZ")) { setprop("/FMGC/status/phase", "3"); setprop("/systems/pressurization/mode", "CR"); } if (alt <= cruiseft and (mode == "DES" or mode == "OP DES") and (phase == "2" or phase == "3")) { setprop("/FMGC/status/phase", "4"); setprop("/systems/pressurization/mode", "DE"); } if (getprop("/FMGC/status/to-state") == 0 and flaps >= 3 and ((phase == "3") or (phase == "4")) and alt < 7200) { setprop("/FMGC/status/phase", "5"); } if (getprop("/autopilot/route-manager/route/num") > 0 and getprop("/autopilot/route-manager/active") == 1 and getprop("/autopilot/route-manager/distance-remaining-nm") <= 15) { setprop("/FMGC/internal/decel", 1); } else if (getprop("/FMGC/internal/decel") == 1 and phase != 5) { setprop("/FMGC/internal/decel", 0); } if ((phase == "5") and (state1 == "TOGA") and (state2 == "TOGA")) { setprop("/FMGC/status/phase", "6"); setprop("/it-autoflight/input/toga", 1); } if ((phase == "6") and ((vertmode == "G/A CLB") or (vertmode == "SPD CLB") or (vertmode == "CLB") or ((vertmode == "V/S") and (targetvs > 0)) or ((vertmode == "FPA") and (targetfpa > 0))) and (alt <= targetalt)) { setprop("/FMGC/status/phase", "2"); } if ((wowl and wowr) and (gs < 40) and (phase == "2" or phase == "3" or phase == "4" or phase == "5" or phase == "6")) { reset_FMGC(); } flap = getprop("/controls/flight/flap-pos"); if (flap == 0) { setprop("/FMGC/internal/overspeed", 338); setprop("/FMGC/internal/minspeed", 202); } else if (flap == 1) { setprop("/FMGC/internal/overspeed", 216); setprop("/FMGC/internal/minspeed", 184); } else if (flap == 2) { setprop("/FMGC/internal/overspeed", 207); setprop("/FMGC/internal/minspeed", 169); } else if (flap == 3) { setprop("/FMGC/internal/overspeed", 189); setprop("/FMGC/internal/minspeed", 156); } else if (flap == 4) { setprop("/FMGC/internal/overspeed", 174); setprop("/FMGC/internal/minspeed", 147); } else if (flap == 5) { setprop("/FMGC/internal/overspeed", 163); setprop("/FMGC/internal/minspeed", 134); } }); var reset_FMGC = func { setprop("/FMGC/status/phase", "7"); fd1 = getprop("/it-autoflight/input/fd1"); fd2 = getprop("/it-autoflight/input/fd2"); spd = getprop("/it-autoflight/input/spd-kts"); hdg = getprop("/it-autoflight/input/hdg"); alt = getprop("/it-autoflight/input/alt"); APinit(); FMGCinit(); mcdu1.MCDU_reset(); mcdu2.MCDU_reset(); setprop("/it-autoflight/input/fd1", fd1); setprop("/it-autoflight/input/fd2", fd2); setprop("/it-autoflight/input/spd-kts", spd); setprop("/it-autoflight/input/hdg", hdg); setprop("/it-autoflight/input/alt", alt); setprop("/systems/pressurization/mode", "GN"); setprop("/systems/pressurization/vs", "0"); setprop("/systems/pressurization/targetvs", "0"); setprop("/systems/pressurization/vs-norm", "0"); setprop("/systems/pressurization/auto", 1); setprop("/systems/pressurization/deltap", "0"); setprop("/systems/pressurization/outflowpos", "0"); setprop("/systems/pressurization/deltap-norm", "0"); setprop("/systems/pressurization/outflowpos-norm", "0"); altitude = getprop("/instrumentation/altimeter/indicated-altitude-ft"); setprop("/systems/pressurization/cabinalt", altitude); setprop("/systems/pressurization/targetalt", altitude); setprop("/systems/pressurization/diff-to-target", "0"); setprop("/systems/pressurization/ditchingpb", 0); setprop("/systems/pressurization/targetvs", "0"); setprop("/systems/ventilation/cabin/fans", 0); # aircon fans setprop("/systems/ventilation/avionics/fan", 0); setprop("/systems/ventilation/avionics/extractvalve", "0"); setprop("/systems/ventilation/avionics/inletvalve", "0"); setprop("/systems/ventilation/lavatory/extractfan", 0); setprop("/systems/ventilation/lavatory/extractvalve", "0"); setprop("/systems/pressurization/ambientpsi", "0"); setprop("/systems/pressurization/cabinpsi", "0"); } var various = maketimer(1, func { if (getprop("/engines/engine[0]/state") == 3 and getprop("/engines/engine[1]/state") != 3) { setprop("/it-autoflight/settings/reduc-agl-ft", getprop("/FMGC/internal/eng-out-reduc")); } else if (getprop("/engines/engine[0]/state") != 3 and getprop("/engines/engine[1]/state") == 3) { setprop("/it-autoflight/settings/reduc-agl-ft", getprop("/FMGC/internal/eng-out-reduc")); } else { setprop("/it-autoflight/settings/reduc-agl-ft", getprop("/FMGC/internal/reduc-agl-ft")); } setprop("/FMGC/internal/gw", math.round(getprop("fdm/jsbsim/inertia/weight-lbs"), 100)); }); var various2 = maketimer(0.5, func { nav0(); nav1(); nav2(); nav3(); adf0(); adf1(); if (getprop("/it-autoflight/output/lat") == 0) { setprop("/it-autoflight/custom/show-hdg", 1); } }); var nav0 = func { var freqnav0uf = getprop("/instrumentation/nav[0]/frequencies/selected-mhz"); var freqnav0 = sprintf("%.2f", freqnav0uf); var namenav0 = getprop("/instrumentation/nav[0]/nav-id"); if (freqnav0 >= 108.10 and freqnav0 <= 111.95) { if (namenav0 != "") { setprop("/FMGC/internal/ils1-mcdu", namenav0 ~ "/" ~ freqnav0); } else { setprop("/FMGC/internal/ils1-mcdu", freqnav0); } } } var nav1 = func { var freqnav1uf = getprop("/instrumentation/nav[1]/frequencies/selected-mhz"); var freqnav1 = sprintf("%.2f", freqnav1uf); var namenav1 = getprop("/instrumentation/nav[1]/nav-id"); if (freqnav1 >= 108.10 and freqnav1 <= 111.95) { if (namenav1 != "") { setprop("/FMGC/internal/ils2-mcdu", freqnav1 ~ "/" ~ namenav1); } else { setprop("/FMGC/internal/ils2-mcdu", freqnav1); } } } var nav2 = func { var freqnav2uf = getprop("/instrumentation/nav[2]/frequencies/selected-mhz"); var freqnav2 = sprintf("%.2f", freqnav2uf); var namenav2 = getprop("/instrumentation/nav[2]/nav-id"); if (freqnav2 >= 108.00 and freqnav2 <= 117.95) { if (namenav2 != "") { setprop("/FMGC/internal/vor1-mcdu", namenav2 ~ "/" ~ freqnav2); } else { setprop("/FMGC/internal/vor1-mcdu", freqnav2); } } } var nav3 = func { var freqnav3uf = getprop("/instrumentation/nav[3]/frequencies/selected-mhz"); var freqnav3 = sprintf("%.2f", freqnav3uf); var namenav3 = getprop("/instrumentation/nav[3]/nav-id"); if (freqnav3 >= 108.00 and freqnav3 <= 117.95) { if (namenav3 != "") { setprop("/FMGC/internal/vor2-mcdu", freqnav3 ~ "/" ~ namenav3); } else { setprop("/FMGC/internal/vor2-mcdu", freqnav3); } } } var adf0 = func { var freqadf0uf = getprop("/instrumentation/adf[0]/frequencies/selected-khz"); var freqadf0 = sprintf("%.2f", freqadf0uf); var nameadf0 = getprop("/instrumentation/adf[0]/ident"); if (freqadf0 >= 190 and freqadf0 <= 1750) { if (nameadf0 != "") { setprop("/FMGC/internal/adf1-mcdu", nameadf0 ~ "/" ~ freqadf0); } else { setprop("/FMGC/internal/adf1-mcdu", freqadf0); } } } var adf1 = func { var freqadf1uf = getprop("/instrumentation/adf[1]/frequencies/selected-khz"); var freqadf1 = sprintf("%.2f", freqadf1uf); var nameadf1 = getprop("/instrumentation/adf[1]/ident"); if (freqadf1 >= 190 and freqadf1 <= 1750) { if (nameadf1 != "") { setprop("/FMGC/internal/adf2-mcdu", freqadf1 ~ "/" ~ nameadf1); } else { setprop("/FMGC/internal/adf2-mcdu", freqadf1); } } } ################# # Managed Speed # ################# var ManagedSPD = maketimer(0.25, func { if (getprop("/FMGC/internal/cruise-lvl-set") == 1 and getprop("/FMGC/internal/cost-index-set") == 1) { if (getprop("/it-autoflight/input/spd-managed") == 1) { altitude = getprop("/instrumentation/altimeter/indicated-altitude-ft"); mode = getprop("/modes/pfd/fma/pitch-mode"); ias = getprop("/instrumentation/airspeed-indicator/indicated-speed-kt"); mach = getprop("/instrumentation/airspeed-indicator/indicated-mach"); ktsmach = getprop("/it-autoflight/input/kts-mach"); mngktsmach = getprop("/FMGC/internal/mng-kts-mach"); mng_spd = getprop("/FMGC/internal/mng-spd"); mng_spd_cmd = getprop("/FMGC/internal/mng-spd-cmd"); kts_sel = getprop("/it-autoflight/input/spd-kts"); mach_sel = getprop("/it-autoflight/input/spd-mach"); srsSPD = getprop("/it-autoflight/settings/togaspd"); phase = getprop("/FMGC/status/phase"); # 0 is Preflight 1 is Takeoff 2 is Climb 3 is Cruise 4 is Descent 5 is Decel/Approach 6 is Go Around 7 is Done flap = getprop("/controls/flight/flap-pos"); overspeed = getprop("/FMGC/internal/overspeed"); minspeed = getprop("/FMGC/internal/minspeed"); mach_switchover = getprop("/FMGC/internal/mach-switchover"); decel = getprop("/FMGC/internal/decel"); mng_alt_spd_cmd = getprop("/FMGC/internal/mng-alt-spd"); mng_alt_spd = math.round(mng_alt_spd_cmd, 1); mng_alt_mach_cmd = getprop("/FMGC/internal/mng-alt-mach"); mng_alt_mach = math.round(mng_alt_mach_cmd, 0.001); if (mach > mng_alt_mach and phase == 2) { setprop("/FMGC/internal/mach-switchover", 1); } if (ias > mng_alt_spd and (phase == 4 or phase == 5)) { setprop("/FMGC/internal/mach-switchover", 0); } if (mode == "SRS" and phase == 0 or phase == 1) { if (mngktsmach) { setprop("/FMGC/internal/mng-kts-mach", 0); } if (mng_spd_cmd != srsSPD) { setprop("/FMGC/internal/mng-spd-cmd", srsSPD); } } else if (phase == 2 and altitude <= 10050) { if (mngktsmach) { setprop("/FMGC/internal/mng-kts-mach", 0); } if (mng_spd_cmd != 250) { setprop("/FMGC/internal/mng-spd-cmd", 250); } } else if ((phase == 2 or phase == 3) and altitude > 10100 and !mach_switchover) { if (mngktsmach) { setprop("/FMGC/internal/mng-kts-mach", 0); } if (mng_spd_cmd != mng_alt_spd) { setprop("/FMGC/internal/mng-spd-cmd", mng_alt_spd); } } else if ((phase == 2 or phase == 3) and altitude > 10100 and mach_switchover) { if (!mngktsmach) { setprop("/FMGC/internal/mng-kts-mach", 1); } if (mng_spd_cmd != mng_alt_mach) { setprop("/FMGC/internal/mng-spd-cmd", mng_alt_mach); } } else if (phase == 4 and altitude > 11100 and !mach_switchover) { if (mngktsmach) { setprop("/FMGC/internal/mng-kts-mach", 0); } if (mng_spd_cmd != mng_alt_spd) { setprop("/FMGC/internal/mng-spd-cmd", mng_alt_spd); } } else if (phase == 4 and altitude > 11100 and mach_switchover) { if (!mngktsmach) { setprop("/FMGC/internal/mng-kts-mach", 1); } if (mng_spd_cmd != mng_alt_mach) { setprop("/FMGC/internal/mng-spd-cmd", mng_alt_mach); } } else if ((phase == 4 or phase == 5 or phase == 6) and altitude <= 11050) { if (mngktsmach) { setprop("/FMGC/internal/mng-kts-mach", 0); } if (mng_spd_cmd != 250 and !decel) { setprop("/FMGC/internal/mng-spd-cmd", 250); } else if (mng_spd_cmd != minspeed and decel) { setprop("/FMGC/internal/mng-spd-cmd", minspeed); } } mng_spd_cmd = getprop("/FMGC/internal/mng-spd-cmd"); if (mng_spd_cmd > overspeed) { setprop("/FMGC/internal/mng-spd", overspeed); } else { setprop("/FMGC/internal/mng-spd", mng_spd_cmd); } if (ktsmach and !mngktsmach) { setprop("/it-autoflight/input/kts-mach", 0); } else if (!ktsmach and mngktsmach) { setprop("/it-autoflight/input/kts-mach", 1); } mng_spd = getprop("/FMGC/internal/mng-spd"); if (kts_sel != mng_spd and !ktsmach) { setprop("/it-autoflight/input/spd-kts", mng_spd); } else if (mach_sel != mng_spd and ktsmach) { setprop("/it-autoflight/input/spd-mach", mng_spd); } } else { ManagedSPD.stop(); } } else { ManagedSPD.stop(); libraries.mcpSPDKnbPull(); } }); var switchDatabase = func { database1 = getprop("/FMGC/internal/navdatabase"); database2 = getprop("/FMGC/internal/navdatabase2"); code1 = getprop("/FMGC/internal/navdatabasecode"); code2 = getprop("/FMGC/internal/navdatabasecode2"); setprop("/FMGC/internal/navdatabase", database2); setprop("/FMGC/internal/navdatabase2", database1); setprop("/FMGC/internal/navdatabasecode", code2); setprop("/FMGC/internal/navdatabasecode2", code1); }