<?xml version="1.0"?> <!-- Airbus A320 Fuel --> <!-- Copyright (c) 2019 Jonathan Redpath --> <system name="A320: Fuel:"> <channel name="Fuel Pumps and Valves" execrate="8"> <!-- Pumps --> <switch name="/systems/fuel/pumps/apu-operate"> <!-- DC HOT 1 ? --> <default value="0"/> <test logic="AND" value="1"> /systems/fuel/pumps/all-eng-pump-off eq 1 <test logic="OR"> /systems/electrical/bus/ac-ess-shed ge 110 <!-- TODO 2QC breaker --> /systems/electrical/bus/ac-si-bus ge 110 <!-- TODO 1QC breaker --> </test> </test> </switch> <switch name="/systems/fuel/pumps/wing-pump-left-1-operate"> <default value="0"/> <test logic="AND" value="1"> /controls/fuel/switches/pump-left-1 eq 1 /systems/failures/fuel/left-tank-pump-1 ne 1 <test logic="OR"> <test logic="AND"> /systems/electrical/sources/idg-1/pmg-volt ge 110 /controls/electrical/switches/gen-1-line-contactor eq 1 </test> /systems/electrical/bus/ac-1 ge 110 </test> </test> </switch> <switch name="/systems/fuel/pumps/wing-pump-left-2-operate"> <default value="0"/> <test logic="AND" value="1"> /systems/failures/fuel/left-tank-pump-2 ne 1 /controls/fuel/switches/pump-left-2 eq 1 /systems/electrical/bus/ac-2 ge 110 </test> </switch> <switch name="/systems/fuel/pumps/wing-pump-right-1-operate"> <default value="0"/> <test logic="AND" value="1"> /controls/fuel/switches/pump-right-1 eq 1 /systems/failures/fuel/right-tank-pump-1 ne 1 <test logic="OR"> <test logic="AND"> /systems/electrical/sources/idg-1/pmg-volt ge 110 /controls/electrical/switches/gen-1-line-contactor eq 1 </test> /systems/electrical/bus/ac-1 ge 110 </test> </test> </switch> <switch name="/systems/fuel/pumps/wing-pump-right-2-operate"> <default value="0"/> <test logic="AND" value="1"> /systems/failures/fuel/right-tank-pump-2 ne 1 /controls/fuel/switches/pump-right-2 eq 1 /systems/electrical/bus/ac-2 ge 110 </test> </switch> <fcs_function name="/systems/fuel/internal/left-inner-tank-underfull-level"> <function> <difference> <property>/consumables/fuel/tank[1]/capacity-gal_us</property> <value>106.197</value> </difference> </function> </fcs_function> <fcs_function name="/systems/fuel/internal/right-inner-tank-underfull-level"> <function> <difference> <property>/consumables/fuel/tank[3]/capacity-gal_us</property> <value>106.197</value> </difference> </function> </fcs_function> <switch name="/systems/fuel/left-inner-full"> <default value="0"/> <test logic="AND" value="1"> /systems/fuel/left-inner-full eq 1 /consumables/fuel/tank[1]/level-norm lt 0.999 /consumables/fuel/tank[1]/level-gal_us ge /systems/fuel/internal/left-inner-tank-underfull-level </test> <test value="1"> /consumables/fuel/tank[1]/level-norm gt 0.999 </test> </switch> <switch name="/systems/fuel/right-inner-full"> <default value="0"/> <test logic="AND" value="1"> /systems/fuel/right-inner-full eq 1 /consumables/fuel/tank[3]/level-norm lt 0.999 /consumables/fuel/tank[3]/level-gal_us ge /systems/fuel/internal/right-inner-tank-underfull-level </test> <test value="1"> /consumables/fuel/tank[3]/level-norm gt 0.999 </test> </switch> <switch name="/systems/fuel/pumps/center-pump-1-operate"> <default value="0"/> <test logic="AND" value="1"> /systems/failures/fuel/center-tank-pump-1 ne 1 /controls/fuel/switches/pump-center-1 eq 1 <test logic="OR"> /controls/fuel/switches/center-mode eq 0 <test logic="AND"> /systems/fuel/pumps/center-control-low-level ne 1 <test logic="OR"> /systems/fuel/ctr-pump-cmd-on-eng-start eq 1 <test logic="AND"> fcs/slat-pos-deg lt 16 /systems/fuel/left-inner-full ne 1 </test> </test> </test> </test> /systems/electrical/bus/ac-1 ge 110 </test> </switch> <switch name="/systems/fuel/pumps/center-pump-2-operate"> <default value="0"/> <test logic="AND" value="1"> /controls/fuel/switches/pump-center-2 eq 1 /systems/failures/fuel/center-tank-pump-2 ne 1 <test logic="OR"> /controls/fuel/switches/center-mode eq 0 <test logic="AND"> /systems/fuel/pumps/center-control-low-level ne 1 <test logic="OR"> /systems/fuel/ctr-pump-cmd-on-eng-start eq 1 <test logic="AND"> fcs/slat-pos-deg lt 16 /systems/fuel/left-inner-full ne 1 </test> </test> </test> </test> /systems/electrical/bus/ac-2 ge 110 </test> </switch> <switch name="/systems/fuel/pumps/all-eng-pump-off"> <default value="0"/> <test logic="AND" value="1"> /systems/fuel/pumps/wing-pump-left-1-operate eq 0 /systems/fuel/pumps/wing-pump-left-2-operate eq 0 /systems/fuel/pumps/wing-pump-right-1-operate eq 0 /systems/fuel/pumps/wing-pump-right-2-operate eq 0 /systems/fuel/pumps/center-pump-1-operate eq 0 /systems/fuel/pumps/center-pump-2-operate eq 0 </test> </switch> <switch name="/systems/fuel/quantity/left-wing-inner-low"> <default value="0"/> <test value="1"> propulsion/tank[1]/contents-lbs le 1650 </test> </switch> <switch name="/systems/fuel/quantity/center-low"> <default value="0"/> <test value="1"> propulsion/tank[2]/contents-lbs le 220 </test> </switch> <switch name="/systems/fuel/quantity/right-wing-inner-low"> <default value="0"/> <test value="1"> propulsion/tank[3]/contents-lbs le 1650 </test> </switch> <actuator name="/systems/fuel/pumps/center-control-low-level"> <input>/systems/fuel/quantity/center-low</input> <rate_limit sense="decr">120</rate_limit> <!-- Instant --> <rate_limit sense="incr">0.00333</rate_limit> <!-- 300 seconds --> </actuator> <!-- Valves --> <switch name="/systems/fuel/valves/outer-inner-transfer-valve-1-cmd"> <default value="0"/> <test logic="AND" value="1"> /systems/fuel/valves/outer-inner-transfer-valve-1-cmd eq 1 /systems/fuel/refuel/refuelling eq 0 </test> <test logic="AND" value="1"> /systems/fuel/valves/outer-inner-transfer-valve-1-power ne 0 <test logic="OR"> /systems/fuel/quantity/left-wing-inner-low eq 1 /systems/fuel/quantity/right-wing-inner-low eq 1 </test> /systems/fuel/refuel/refuelling eq 0 </test> </switch> <switch name="/systems/fuel/valves/outer-inner-transfer-valve-1-power"> <default value="0"/> <test logic="OR" value="0.333"> /systems/electrical/bus/dc-ess-shed ge 25 /systems/electrical/bus/dc-2 ge 25 </test> </switch> <actuator name="/systems/fuel/valves/outer-inner-transfer-valve-1"> <input>/systems/fuel/valves/outer-inner-transfer-valve-1-cmd</input> <rate_limit>/systems/fuel/valves/outer-inner-transfer-valve-1-power</rate_limit> </actuator> <switch name="/systems/fuel/valves/outer-inner-transfer-valve-2-cmd"> <default value="0"/> <test logic="AND" value="1"> /systems/fuel/valves/outer-inner-transfer-valve-2-cmd eq 1 /systems/fuel/refuel/refuelling eq 0 </test> <test logic="AND" value="1"> /systems/fuel/valves/outer-inner-transfer-valve-2-power ne 0 <test logic="OR"> /systems/fuel/quantity/left-wing-inner-low eq 1 /systems/fuel/quantity/right-wing-inner-low eq 1 </test> /systems/fuel/refuel/refuelling eq 0 </test> </switch> <switch name="/systems/fuel/valves/outer-inner-transfer-valve-2-power"> <default value="0"/> <test logic="OR" value="0.333"> /systems/electrical/bus/dc-ess-shed ge 25 /systems/electrical/bus/dc-2 ge 25 </test> </switch> <actuator name="/systems/fuel/valves/outer-inner-transfer-valve-2"> <input>/systems/fuel/valves/outer-inner-transfer-valve-2-cmd</input> <rate_limit>/systems/fuel/valves/outer-inner-transfer-valve-2-power</rate_limit> </actuator> <!-- XFeed Valve --> <switch name="/systems/fuel/valves/crossfeed-valve-cmd"> <default value="0"/> <test value="1"> /controls/fuel/switches/crossfeed eq 1 </test> </switch> <switch name="/systems/fuel/valves/crossfeed-valve-power"> <default value="0"/> <test logic="OR" value="0.5"> /systems/electrical/bus/dc-2 ge 25 /systems/electrical/bus/dc-ess-shed ge 25 </test> </switch> <actuator name="/systems/fuel/valves/crossfeed-valve"> <input>/systems/fuel/valves/crossfeed-valve-cmd</input> <rate_limit>/systems/fuel/valves/crossfeed-valve-power</rate_limit> </actuator> <!-- Engine LP Valves --> <switch name="/systems/fuel/valves/engine-1-lp-valve-cmd"> <default value="0"/> <test logic="AND" value="1"> /controls/engines/engine[0]/fire-btn eq 0 /controls/engines/engine[0]/cutoff-switch eq 0 </test> </switch> <switch name="/systems/fuel/valves/engine-1-lp-valve-power"> <default value="0"/> <test logic="OR" value="1.0"> /systems/electrical/bus/dc-ess-shed ge 25 /systems/electrical/bus/dc-2 ge 25 </test> </switch> <actuator name="/systems/fuel/valves/engine-1-lp-valve"> <input>/systems/fuel/valves/engine-1-lp-valve-cmd</input> <rate_limit>/systems/fuel/valves/engine-1-lp-valve-power</rate_limit> </actuator> <switch name="/systems/fuel/valves/engine-2-lp-valve-cmd"> <default value="0"/> <test logic="AND" value="1"> /controls/engines/engine[1]/fire-btn eq 0 /controls/engines/engine[1]/cutoff-switch eq 0 </test> </switch> <switch name="/systems/fuel/valves/engine-2-lp-valve-power"> <default value="0"/> <test logic="OR" value="1.0"> /systems/electrical/bus/dc-ess-shed ge 25 /systems/electrical/bus/dc-2 ge 25 </test> </switch> <actuator name="/systems/fuel/valves/engine-2-lp-valve"> <input>/systems/fuel/valves/engine-2-lp-valve-cmd</input> <rate_limit>/systems/fuel/valves/engine-2-lp-valve-power</rate_limit> </actuator> <switch name="/systems/fuel/valves/apu-lp-valve-power"> <default value="0"/> <test logic="OR" value="1.0"> /systems/electrical/bus/dc-bat ge 25 <!-- 4WF --> /systems/electrical/bus/dc-hot-1 ge 25 <!-- 3WF --> </test> </switch> <actuator name="/systems/fuel/valves/apu-lp-valve"> <input>/systems/fuel/valves/apu-lp-valve-cmd</input> <rate_limit>/systems/fuel/valves/apu-lp-valve-power</rate_limit> </actuator> <!-- Pump PSI --> <pure_gain name="/systems/fuel/pumps/apu-psi-cmd"> <input>/systems/fuel/pumps/apu-operate</input> <gain>25.3</gain> <!-- 9600 lb/h (guess) --> </pure_gain> <actuator name="/systems/fuel/pumps/apu-psi"> <input>/systems/fuel/pumps/apu-psi-cmd</input> <rate_limit sense="incr">5</rate_limit> <rate_limit sense="decr">10</rate_limit> </actuator> <pure_gain name="/systems/fuel/pumps/wing-pump-left-1-psi-cmd"> <input>/systems/fuel/pumps/wing-pump-left-1-operate</input> <gain>25.3</gain> <!-- 9600 lb/h (guess) --> </pure_gain> <actuator name="/systems/fuel/pumps/wing-pump-left-1-psi"> <input>/systems/fuel/pumps/wing-pump-left-1-psi-cmd</input> <rate_limit sense="incr">5</rate_limit> <rate_limit sense="decr">10</rate_limit> </actuator> <pure_gain name="/systems/fuel/pumps/wing-pump-left-2-psi-cmd"> <input>/systems/fuel/pumps/wing-pump-left-2-operate</input> <gain>25.3</gain> <!-- 9600 lb/h (guess) --> </pure_gain> <actuator name="/systems/fuel/pumps/wing-pump-left-2-psi"> <input>/systems/fuel/pumps/wing-pump-left-2-psi-cmd</input> <rate_limit sense="incr">5</rate_limit> <rate_limit sense="decr">10</rate_limit> </actuator> <pure_gain name="/systems/fuel/pumps/center-pump-1-psi-cmd"> <input>/systems/fuel/pumps/center-pump-1-operate</input> <gain>30</gain> <!-- 11000 lb/h --> </pure_gain> <actuator name="/systems/fuel/pumps/center-pump-1-psi"> <input>/systems/fuel/pumps/center-pump-1-psi-cmd</input> <rate_limit sense="incr">5</rate_limit> <rate_limit sense="decr">10</rate_limit> </actuator> <pure_gain name="/systems/fuel/pumps/center-pump-2-psi-cmd"> <input>/systems/fuel/pumps/center-pump-2-operate</input> <gain>30</gain> <!-- 11000 lb/h --> </pure_gain> <actuator name="/systems/fuel/pumps/center-pump-2-psi"> <input>/systems/fuel/pumps/center-pump-2-psi-cmd</input> <rate_limit sense="incr">5</rate_limit> <rate_limit sense="decr">10</rate_limit> </actuator> <pure_gain name="/systems/fuel/pumps/wing-pump-right-1-psi-cmd"> <input>/systems/fuel/pumps/wing-pump-right-1-operate</input> <gain>25.3</gain> <!-- 9600 lb/h (guess) --> </pure_gain> <actuator name="/systems/fuel/pumps/wing-pump-right-1-psi"> <input>/systems/fuel/pumps/wing-pump-right-1-psi-cmd</input> <rate_limit sense="incr">5</rate_limit> <rate_limit sense="decr">10</rate_limit> </actuator> <pure_gain name="/systems/fuel/pumps/wing-pump-right-2-psi-cmd"> <input>/systems/fuel/pumps/wing-pump-right-2-operate</input> <gain>25.3</gain> <!-- 9600 lb/h (guess) --> </pure_gain> <actuator name="/systems/fuel/pumps/wing-pump-right-2-psi"> <input>/systems/fuel/pumps/wing-pump-right-2-psi-cmd</input> <rate_limit sense="incr">5</rate_limit> <rate_limit sense="decr">10</rate_limit> </actuator> </channel> <channel name="Flow Rates" execrate="2"> <summer name="/systems/fuel/fuel-used-1"> <input>/systems/fuel/offset-left</input> <input>propulsion/engine[0]/fuel-used-lbs</input> </summer> <summer name="/systems/fuel/fuel-used-2"> <input>/systems/fuel/offset-right</input> <input>propulsion/engine[1]/fuel-used-lbs</input> </summer> <switch name="/systems/fuel/feed-left-inner"> <default value="0"/> <test logic="OR" value="1"> /systems/fuel/pumps/wing-pump-left-1-operate eq 1 /systems/fuel/pumps/wing-pump-left-2-operate eq 1 </test> <test logic="AND" value="0"> <!-- crossfeeding overrides gravity feed --> /systems/fuel/valves/crossfeed-valve eq 1 <test logic="OR"> /systems/fuel/pumps/wing-pump-right-1-operate eq 1 /systems/fuel/pumps/wing-pump-right-2-operate eq 1 </test> </test> <test logic="AND" value="1"> <!-- Suction/Gravity feed if G is not to far below 1 --> /accelerations/pilot-gdamped ge 0.5 </test> </switch> <switch name="/systems/fuel/feed-right-inner"> <default value="0"/> <test logic="OR" value="1"> /systems/fuel/pumps/wing-pump-right-1-operate eq 1 /systems/fuel/pumps/wing-pump-right-2-operate eq 1 </test> <test logic="AND" value="0"> <!-- crossfeeding overrides gravity feed --> /systems/fuel/valves/crossfeed-valve eq 1 <test logic="OR"> /systems/fuel/pumps/wing-pump-left-1-operate eq 1 /systems/fuel/pumps/wing-pump-left-2-operate eq 1 </test> </test> <test logic="AND" value="1"> <!-- Suction/Gravity feed if G is not to far below 1 --> /accelerations/pilot-gdamped ge 0.5 </test> </switch> <switch name="/systems/fuel/feed-center-1"> <default value="0"/> <test logic="OR" value="1"> /systems/fuel/pumps/center-pump-1-operate eq 1 </test> </switch> <switch name="/systems/fuel/feed-center-2"> <default value="0"/> <test logic="OR" value="1"> /systems/fuel/pumps/center-pump-2-operate eq 1 </test> </switch> <switch name="/systems/fuel/apu-feed-pump"> <default value="0"/> <test logic="AND" value="1"> /systems/fuel/pumps/apu-operate eq 1 /systems/fuel/valves/apu-lp-valve eq 1 </test> </switch> <!-- Refuel system --> <switch name="/systems/fuel/internal/left-outer-wing-tank-refuel"> <default value="0"/> <test logic="AND" value="16.615"> /systems/fuel/refuel/refuelling eq 1 /systems/fuel/refuel/left-valve eq 1 /systems/fuel/refuel/center-valve eq 0 </test> <test logic="AND" value="11.076"> /systems/fuel/refuel/refuelling eq 1 /systems/fuel/refuel/left-valve eq 1 /systems/fuel/refuel/center-valve eq 1 </test> </switch> <switch name="/systems/fuel/internal/left-inner-wing-tank-refuel"> <default value="0"/> <test logic="AND" value="/systems/fuel/internal/left-outer-wing-tank-refuel"> /systems/fuel/refuel/refuelling eq 1 propulsion/tank[0]/pct-full ge 99.9 </test> </switch> <switch name="/systems/fuel/internal/center-tank-refuel"> <default value="0"/> <test logic="AND" value="33.230"> /systems/fuel/refuel/refuelling eq 1 /systems/fuel/refuel/right-valve eq 0 /systems/fuel/refuel/center-valve eq 1 </test> <test logic="AND" value="16.615"> /systems/fuel/refuel/refuelling eq 1 <test logic="OR"> <test logic="AND"> /systems/fuel/refuel/left-valve eq 1 /systems/fuel/refuel/right-valve eq 0 </test> <test logic="AND"> /systems/fuel/refuel/left-valve eq 0 /systems/fuel/refuel/right-valve eq 1 </test> </test> /systems/fuel/refuel/center-valve eq 1 </test> <test logic="AND" value="11.076"> /systems/fuel/refuel/refuelling eq 1 /systems/fuel/refuel/left-valve eq 1 /systems/fuel/refuel/right-valve eq 1 /systems/fuel/refuel/center-valve eq 1 </test> </switch> <switch name="/systems/fuel/internal/right-outer-wing-tank-refuel"> <default value="0"/> <test logic="AND" value="16.615"> /systems/fuel/refuel/refuelling eq 1 /systems/fuel/refuel/right-valve eq 1 /systems/fuel/refuel/center-valve eq 0 </test> <test logic="AND" value="11.076"> /systems/fuel/refuel/refuelling eq 1 /systems/fuel/refuel/right-valve eq 1 /systems/fuel/refuel/center-valve eq 1 </test> </switch> <switch name="/systems/fuel/internal/right-inner-wing-tank-refuel"> <default value="0"/> <test logic="AND" value="/systems/fuel/internal/right-outer-wing-tank-refuel"> /systems/fuel/refuel/refuelling eq 1 propulsion/tank[4]/pct-full ge 99.9 </test> </switch> <switch name="rubbish/pipes-unusable-volume-1"> <default value="0"/> <test logic="AND" value="1.5"> /systems/acconfig/autoconfig-running eq 0 /systems/fuel/valves/engine-1-lp-valve eq 0 </test> <output>propulsion/tank[5]/unusable-volume-gal</output> </switch> <switch name="rubbish/pipes-unusable-volume-2"> <default value="0"/> <test logic="AND" value="1.5"> /systems/acconfig/autoconfig-running eq 0 /systems/fuel/valves/engine-2-lp-valve eq 0 </test> <output>propulsion/tank[6]/unusable-volume-gal</output> </switch> <switch name="rubbish/pipes-unusable-volume-apu"> <default value="0"/> <test logic="AND" value="1.5"> /systems/acconfig/autoconfig-running eq 0 /systems/fuel/valves/apu-lp-valve eq 0 </test> <output>propulsion/tank[7]/unusable-volume-gal</output> </switch> <!-- Feed system --> <switch name="/systems/fuel/internal/apu-source"> <!-- this only when all pumps off --> <default value="0"/> <!-- no fuel --> <test logic="AND" value="2"> <!-- center preferentially, higher psi --> /systems/fuel/apu-feed-pump eq 1 /consumables/fuel/tank[2]/level-gal_us gt /consumables/fuel/tank[2]/unusable-gal_us </test> <test logic="AND" value="1"> <!-- left --> /systems/fuel/apu-feed-pump eq 1 /consumables/fuel/tank[1]/level-gal_us gt /consumables/fuel/tank[1]/unusable-gal_us </test> <test logic="AND" value="3"> <!-- right --> /systems/fuel/apu-feed-pump eq 1 /systems/fuel/valves/crossfeed-valve eq 1 /consumables/fuel/tank[3]/level-gal_us gt /consumables/fuel/tank[3]/unusable-gal_us </test> </switch> <switch name="/systems/fuel/internal/left-wing-tank-eng-1"> <default value="0"/> <test logic="AND" value="9"> <test logic="OR"> /systems/fuel/quantity/center-low eq 1 /systems/fuel/feed-center-1 eq 0 </test> /systems/fuel/feed-left-inner eq 1 /consumables/fuel/tank[1]/level-gal_us gt /consumables/fuel/tank[1]/unusable-gal_us propulsion/tank[5]/contents-lbs lt 9 </test> </switch> <switch name="/systems/fuel/internal/center-tank-eng-1"> <default value="0"/> <test logic="AND" value="9"> <test logic="OR"> /systems/fuel/feed-center-1 eq 1 <test logic="AND"> /systems/fuel/feed-center-2 eq 1 /systems/fuel/valves/crossfeed-valve eq 1 </test> </test> /consumables/fuel/tank[2]/level-gal_us gt /consumables/fuel/tank[2]/unusable-gal_us propulsion/tank[5]/contents-lbs lt 9 </test> </switch> <switch name="/systems/fuel/internal/right-wing-tank-eng-1"> <default value="0"/> <test logic="AND" value="9"> <test logic="OR"> /systems/fuel/quantity/center-low eq 1 /systems/fuel/feed-center-2 eq 0 </test> /systems/fuel/feed-right-inner eq 1 /systems/fuel/valves/crossfeed-valve eq 1 /consumables/fuel/tank[1]/level-gal_us le /consumables/fuel/tank[3]/unusable-gal_us /consumables/fuel/tank[3]/level-gal_us gt /consumables/fuel/tank[3]/unusable-gal_us propulsion/tank[5]/contents-lbs lt 9 </test> </switch> <switch name="/systems/fuel/internal/left-wing-tank-eng-2"> <default value="0"/> <test logic="AND" value="9"> <test logic="OR"> /systems/fuel/quantity/center-low eq 1 /systems/fuel/feed-center-1 eq 0 </test> /systems/fuel/feed-left-inner eq 1 /systems/fuel/valves/crossfeed-valve eq 1 /consumables/fuel/tank[1]/level-gal_us gt /consumables/fuel/tank[1]/unusable-gal_us /consumables/fuel/tank[3]/level-gal_us le /consumables/fuel/tank[3]/unusable-gal_us propulsion/tank[6]/contents-lbs lt 9 </test> </switch> <switch name="/systems/fuel/internal/center-tank-eng-2"> <default value="0"/> <test logic="AND" value="9"> <test logic="OR"> /systems/fuel/feed-center-2 eq 1 <test logic="AND"> /systems/fuel/feed-center-1 eq 1 /systems/fuel/valves/crossfeed-valve eq 1 </test> </test> /consumables/fuel/tank[2]/level-gal_us gt /consumables/fuel/tank[2]/unusable-gal_us propulsion/tank[6]/contents-lbs lt 9 </test> </switch> <switch name="/systems/fuel/internal/right-wing-tank-eng-2"> <default value="0"/> <test logic="AND" value="9"> <test logic="OR"> /systems/fuel/quantity/center-low eq 1 /systems/fuel/feed-center-2 eq 0 </test> /systems/fuel/feed-right-inner eq 1 /consumables/fuel/tank[3]/level-gal_us gt /consumables/fuel/tank[3]/unusable-gal_us propulsion/tank[6]/contents-lbs lt 9 </test> </switch> <switch name="/systems/fuel/internal/left-wing-tank-apu"> <default value="0"/> <test logic="AND" value="9"> <test logic="OR"> /systems/fuel/quantity/center-low eq 1 /systems/fuel/feed-center-1 eq 0 </test> <test logic="OR"> /systems/fuel/pumps/wing-pump-left-1-operate eq 1 /systems/fuel/pumps/wing-pump-left-2-operate eq 1 /systems/fuel/internal/apu-source eq 1 </test> /consumables/fuel/tank[1]/level-gal_us gt /consumables/fuel/tank[1]/unusable-gal_us propulsion/tank[7]/contents-lbs lt 9 </test> </switch> <switch name="/systems/fuel/internal/center-tank-apu"> <default value="0"/> <test logic="AND" value="9"> <test logic="OR"> /systems/fuel/feed-center-1 eq 1 <test logic="AND"> /systems/fuel/feed-center-2 eq 1 /systems/fuel/valves/crossfeed-valve eq 1 </test> /systems/fuel/internal/apu-source eq 2 </test> /consumables/fuel/tank[2]/level-gal_us gt /consumables/fuel/tank[2]/unusable-gal_us propulsion/tank[7]/contents-lbs lt 9 </test> </switch> <switch name="/systems/fuel/internal/right-wing-tank-apu"> <default value="0"/> <test logic="AND" value="9"> <test logic="OR"> /systems/fuel/quantity/center-low eq 1 /systems/fuel/feed-center-1 eq 0 </test> <test logic="OR"> /systems/fuel/pumps/wing-pump-right-1-operate eq 1 /systems/fuel/pumps/wing-pump-right-2-operate eq 1 /systems/fuel/internal/apu-source eq 3 </test> /systems/fuel/valves/crossfeed-valve eq 1 /consumables/fuel/tank[3]/level-gal_us gt /consumables/fuel/tank[3]/unusable-gal_us propulsion/tank[7]/contents-lbs lt 9 </test> </switch> <switch name="/systems/fuel/internal/left-wing-outer-to-inner-tank"> <default value="0"/> <test logic="AND" value="/systems/fuel/internal/left-outer-wing-tank-refuel"> /systems/fuel/valves/outer-inner-transfer-valve-1 eq 1 /accelerations/pilot-gdamped ge 0.5 /consumables/fuel/tank[0]/level-gal_us gt /consumables/fuel/tank[0]/unusable-gal_us /consumables/fuel/tank[1]/level-norm lt 0.9999 /systems/fuel/refuel/refuelling eq 1 </test> <test logic="AND" value="9"> /systems/fuel/valves/outer-inner-transfer-valve-1 eq 1 /accelerations/pilot-gdamped ge 0.5 /consumables/fuel/tank[0]/level-gal_us gt /consumables/fuel/tank[0]/unusable-gal_us /consumables/fuel/tank[1]/level-norm lt 0.9999 </test> </switch> <switch name="/systems/fuel/internal/right-wing-outer-to-inner-tank"> <default value="0"/> <test logic="AND" value="/systems/fuel/internal/right-outer-wing-tank-refuel"> /systems/fuel/valves/outer-inner-transfer-valve-2 eq 1 /accelerations/pilot-gdamped ge 0.5 /consumables/fuel/tank[4]/level-gal_us gt /consumables/fuel/tank[0]/unusable-gal_us /consumables/fuel/tank[3]/level-norm lt 0.9999 /systems/fuel/refuel/refuelling eq 1 </test> <test logic="AND" value="9"> /systems/fuel/valves/outer-inner-transfer-valve-2 eq 1 /accelerations/pilot-gdamped ge 0.5 /consumables/fuel/tank[4]/level-gal_us gt /consumables/fuel/tank[4]/unusable-gal_us /consumables/fuel/tank[3]/level-norm lt 0.9999 </test> </switch> </channel> <channel name="Final Flow Rates"> <summer name="/systems/fuel/internal/left-outer-flow-rate"> <input>/systems/fuel/internal/left-outer-wing-tank-refuel</input> <input>-/systems/fuel/internal/left-wing-outer-to-inner-tank</input> <output>propulsion/tank[0]/external-flow-rate-pps</output> </summer> <summer name="/systems/fuel/internal/left-inner-flow-rate"> <input>/systems/fuel/internal/left-wing-outer-to-inner-tank</input> <input>/systems/fuel/internal/left-inner-wing-tank-refuel</input> <input>-/systems/fuel/internal/left-wing-tank-eng-1</input> <input>-/systems/fuel/internal/left-wing-tank-eng-2</input> <input>-/systems/fuel/internal/left-wing-tank-apu</input> <output>propulsion/tank[1]/external-flow-rate-pps</output> </summer> <summer name="/systems/fuel/internal/center-flow-rate"> <input>/systems/fuel/internal/center-tank-refuel</input> <input>-/systems/fuel/internal/center-tank-eng-1</input> <input>-/systems/fuel/internal/center-tank-eng-2</input> <input>-/systems/fuel/internal/center-tank-apu</input> <output>propulsion/tank[2]/external-flow-rate-pps</output> </summer> <summer name="/systems/fuel/internal/right-inner-flow-rate"> <input>/systems/fuel/internal/right-wing-outer-to-inner-tank</input> <input>/systems/fuel/internal/right-inner-wing-tank-refuel</input> <input>-/systems/fuel/internal/right-wing-tank-eng-1</input> <input>-/systems/fuel/internal/right-wing-tank-eng-2</input> <input>-/systems/fuel/internal/right-wing-tank-apu</input> <output>propulsion/tank[3]/external-flow-rate-pps</output> </summer> <summer name="/systems/fuel/internal/right-outer-flow-rate"> <input>/systems/fuel/internal/right-outer-wing-tank-refuel</input> <input>-/systems/fuel/internal/right-wing-outer-to-inner-tank</input> <output>propulsion/tank[4]/external-flow-rate-pps</output> </summer> <summer name="/systems/fuel/internal/eng-1-flow-rate"> <input>/systems/fuel/internal/left-wing-tank-eng-1</input> <input>/systems/fuel/internal/right-wing-tank-eng-1</input> <input>/systems/fuel/internal/center-tank-eng-1</input> <output>propulsion/tank[5]/external-flow-rate-pps</output> </summer> <summer name="/systems/fuel/internal/eng-2-flow-rate"> <input>/systems/fuel/internal/left-wing-tank-eng-2</input> <input>/systems/fuel/internal/right-wing-tank-eng-2</input> <input>/systems/fuel/internal/center-tank-eng-2</input> <output>propulsion/tank[6]/external-flow-rate-pps</output> </summer> <summer name="/systems/fuel/internal/apu-flow-rate"> <input>/systems/fuel/internal/left-wing-tank-apu</input> <input>/systems/fuel/internal/center-tank-apu</input> <input>/systems/fuel/internal/right-wing-tank-apu</input> <output>propulsion/tank[7]/external-flow-rate-pps</output> </summer> </channel> <channel name="Warnings" execrate="8"> <summer name="/systems/fuel/quantity/left-wing-kg"> <input>/consumables/fuel/tank[0]/level-kg</input> <input>/consumables/fuel/tank[1]/level-kg</input> </summer> <summer name="/systems/fuel/quantity/right-wing-kg"> <input>/consumables/fuel/tank[3]/level-kg</input> <input>/consumables/fuel/tank[4]/level-kg</input> </summer> <switch name="/systems/fuel/mode-fault"> <default value="0"/> <test logic="AND" value="1"> <test logic="OR"> /systems/fuel/quantity/left-wing-kg lt 5000 /systems/fuel/quantity/right-wing-kg lt 5000 </test> /consumables/fuel/tank[2]/level-kg ge 250 </test> </switch> </channel> </system>