Lockheed1049h/Nasal/Lockheed1049h-fuel.nas

3 # Custom 1049H routines for fuel tanks and routing support
27 # 2 and 3 have secondaries (2A, 3A), but if wing-tip tanks are installed they are secondaries for
28 # tanks 1 and 4. The center tank 5 has no secondary.
30 # Cross-feed valves allow an engine to draw from all selected tanks rather than just their standard
32 # will draw evenly from all open tanks.
34 # Wing-tip tanks 1A and 4A are currently not used in the 1049H model, but provisions are built into
37 # Tank Indexes and corresponding tanks:
43 # The system works by having engines draw from small fuel line buffer tanks which are replenished f…
44 # the true tanks via nasal script according to tank and cross-feed valve settings. Engines never dr…
45 # directly from true tanks, though true tanks are described in the FDM so their weight affects the …
67 var tanks               = props.globals.getNode("/consumables/fuel").getChildren("tank");
73 var fuel_presets        = props.globals.getNode("/systems/fuel/tanks").getChildren("fuel_preset");
89 …                                             # Find number of tanks open and with fuel >= fuel_used
98 …                                         # Distribute fuel draw between cross-feeding capable tanks
99 …e(xfeed_list) > 0) {                                       # Do we have any delivery-capable tanks?
100 …used / size(xfeed_list);                # Split fuel request evenly between all cross-feeding tanks
110 … 2)                       # 2: Draw from secondary tank (2A,3A or wing-tip tanks 1A,2A if provided)
153 #  if (tanks[tank_index].getChild("level-lb") == nil) {                 # Hack to deal with renamin…
154 #    lbs = tanks[tank_index].getChild("level-lbs").getValue();          # to level-lbs in JBSsim
157 #    lbs = tanks[tank_index].getChild("level-lb").getValue();
164 #  return tanks[tank_index].getChild("level-lb").getValue();
168   return tanks[tank_index].getChild("level-lbs").getValue();
172   tanks[tank_index].getChild("level-gal_us").getValue();
175   tanks[tank_index].getChild("level-gal_us").setValue(gallons);
178   tanks[tank_index].getChild("capacity-gal_us").getValue();
245 …value = getprop("/systems/fuel/tanks/dialog-preset");                 # Get name of preset selecte…
271     foreach (var tank; tanks) {
298   var dialog_preset = getprop("/systems/fuel/tanks/dialog-preset");
301     setprop("/systems/fuel/tanks/dialog-preset", preset_name);
321       else      { set_tank_valve(i,0) }                                 # Other tanks default to off
336       var lbs = getprop("systems/fuel/tanks/request-fuel-lbs");
343 ##################################### jettison the tanks ##########################################…