Live CG calculation

This commit is contained in:
Kilian Hofmann 2025-06-03 23:46:16 +02:00
parent aca476b6bf
commit afa806de61
4 changed files with 254 additions and 3 deletions

View File

@ -1,17 +1,138 @@
import ThemeProvider from '@mui/material/styles/ThemeProvider';
import { FC, StrictMode } from 'react';
import styles from './App.module.scss';
import { ArmsFreight, PayloadFreight } from './configs/freighter';
import { ArmsPax, PayloadPax } from './configs/pax';
import { ArmsFuel, EmptyArm, Fuel, toPercentMAC } from './configs/shared';
interface IAppProps {
dataListener: ViewListener.ViewListener;
}
const App: FC<IAppProps> = ({ dataListener }) => {
const App: FC<IAppProps> = () => {
// TODO: Get from EFB settings
const [unit, setUnit] = useState<'lbs' | 'kg'>('lbs');
// TODO: Look into EFB, infer the same way
const [aircraft, setAircraft] = useState<'f' | 'pax'>('f');
const [payload, setPayload] = useState<PayloadPax | PayloadFreight>();
const [fuel, setFuel] = useState<Fuel>();
const [ZFWCG, setZFWCG] = useState(0);
const [TOCG, setTOCG] = useState(0);
const requestRef = useRef<number | undefined>(undefined);
const mainLoop = () => {
try {
if (SimVar.IsReady()) {
const conversion = SimVar.GetSimVarValue('FUEL WEIGHT PER GALLON', unit);
const emptyWeight = SimVar.GetSimVarValue('EMPTY WEIGHT', unit);
const payload: PayloadPax | PayloadFreight = {
pilot: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:1', unit),
firstOfficer: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:2', unit),
engineer: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:3', unit),
upper1Left: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:4', unit),
cabinCrewFront: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:4', unit),
upper1Right: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:5', unit),
business1Left: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:5', unit),
upper2Left: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:6', unit),
business1Center: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:6', unit),
upper2Right: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:7', unit),
business1Right: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:7', unit),
upper3Left: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:8', unit),
business2Left: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:8', unit),
upper3Right: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:9', unit),
business2Center: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:9', unit),
upper4Left: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:10', unit),
business2Right: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:10', unit),
upper4Right: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:11', unit),
economy1Left: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:11', unit),
lowerForward: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:12', unit),
economy1Center: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:12', unit),
lowerRear: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:13', unit),
economy1Right: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:13', unit),
leftAuxF: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:14', unit),
economy2Left: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:14', unit),
rightAuxF: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:15', unit),
economy2Center: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:15', unit),
economy2Right: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:16', unit),
cabinCrewRear: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:17', unit),
forwardCargo: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:18', unit),
rearCargo: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:19', unit),
leftAuxPax: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:20', unit),
rightAuxPax: SimVar.GetSimVarValue('PAYLOAD STATION WEIGHT:21', unit),
};
const fuel = {
main1: SimVar.GetSimVarValue('FUEL TANK LEFT MAIN QUANTITY', 'gal') * conversion,
main3: SimVar.GetSimVarValue('FUEL TANK RIGHT MAIN QUANTITY', 'gal') * conversion,
main2: SimVar.GetSimVarValue('FUEL TANK CENTER QUANTITY', 'gal') * conversion,
upperAux: SimVar.GetSimVarValue('FUEL TANK CENTER2 QUANTITY', 'gal') * conversion,
lowerAux: SimVar.GetSimVarValue('FUEL TANK CENTER3 QUANTITY', 'gal') * conversion,
main1Tip: SimVar.GetSimVarValue('FUEL TANK LEFT TIP QUANTITY', 'gal') * conversion,
main3Tip: SimVar.GetSimVarValue('FUEL TANK RIGHT TIP QUANTITY', 'gal') * conversion,
tail: SimVar.GetSimVarValue('FUEL TANK EXTERNAL1 QUANTITY', 'gal') * conversion,
forwardAux1: SimVar.GetSimVarValue('FUEL TANK LEFT AUX QUANTITY', 'gal') * conversion,
forwardAux2: SimVar.GetSimVarValue('FUEL TANK RIGHT AUX QUANTITY', 'gal') * conversion,
};
let totalMoment = EmptyArm * emptyWeight;
let totalWeight = emptyWeight;
const arms = aircraft === 'f' ? ArmsFreight : ArmsPax;
for (const key in arms) {
if (Object.prototype.hasOwnProperty.call(payload, key)) {
const stationWeight = payload[key as keyof (PayloadFreight | PayloadPax)];
const arm = arms[key as keyof typeof arms];
totalWeight += stationWeight;
totalMoment += arm * stationWeight;
}
}
setZFWCG(toPercentMAC(totalMoment / totalWeight));
for (const key in ArmsFuel) {
if (Object.prototype.hasOwnProperty.call(fuel, key)) {
const stationWeight = fuel[key as keyof Fuel];
const arm = ArmsFuel[key as keyof typeof ArmsFuel];
totalWeight += stationWeight;
totalMoment += arm * stationWeight;
}
}
setTOCG(toPercentMAC(totalMoment / totalWeight));
setPayload(payload);
setFuel(fuel);
}
} catch {}
requestRef.current = requestAnimationFrame(mainLoop);
};
useEffect(() => {
requestRef.current = requestAnimationFrame(mainLoop);
if (requestRef.current !== undefined) return () => cancelAnimationFrame(requestRef.current as number);
}, [unit, aircraft]);
return (
<StrictMode>
<div className={styles.app}>
<ThemeProvider>
</ThemeProvider>
<button onClick={() => (unit === 'lbs' ? setUnit('kg') : setUnit('lbs'))}>Change unit from {unit}</button>
<button onClick={() => (aircraft === 'f' ? setAircraft('pax') : setAircraft('f'))}>
Change aircraft from {aircraft}
</button>
<div style={{ display: 'flex' }}>
<div>
<pre>{JSON.stringify(payload, null, 2)}</pre>
<strong>ZFWCG: {ZFWCG}</strong>
</div>
<div>
<pre>{JSON.stringify(fuel, null, 2)}</pre>
<strong>TOCG: {TOCG}</strong>
</div>
</div>
</div>
</StrictMode>
);

View File

@ -0,0 +1,36 @@
export interface PayloadFreight {
pilot: number;
firstOfficer: number;
engineer: number;
upper1Left: number;
upper1Right: number;
upper2Left: number;
upper2Right: number;
upper3Left: number;
upper3Right: number;
upper4Left: number;
upper4Right: number;
lowerForward: number;
lowerRear: number;
leftAuxF: number;
rightAuxF: number;
}
// TODO: Extract from CFG at runtime.
export const ArmsFreight = {
pilot: 984,
firstOfficer: 984,
engineer: 960,
upper1Left: 660,
upper1Right: 660,
upper2Left: 240,
upper2Right: 240,
upper3Left: -240,
upper3Right: -240,
upper4Left: -600,
upper4Right: -600,
lowerForward: 360,
lowerRear: -360,
leftAuxF: 60,
rightAuxF: 60,
}

View File

@ -0,0 +1,49 @@
export interface PayloadPax {
pilot: number;
firstOfficer: number;
engineer: number;
cabinCrewFront: number;
business1Left: number;
business1Center: number;
business1Right: number;
business2Left: number;
business2Center: number;
business2Right: number;
economy1Left: number;
economy1Center: number;
economy1Right: number;
economy2Left: number;
economy2Center: number;
economy2Right: number;
cabinCrewRear: number;
forwardCargo: number;
rearCargo: number;
leftAuxPax: number;
rightAuxPax: number;
}
// TODO: Extract from CFG at runtime.
// FIXME: Copy over values
export const ArmsPax = {
pilot: 0,
firstOfficer: 0,
engineer: 0,
cabinCrewFront: 0,
business1Left: 0,
business1Center: 0,
business1Right: 0,
business2Left: 0,
business2Center: 0,
business2Right: 0,
economy1Left: 0,
economy1Center: 0,
economy1Right: 0,
economy2Left: 0,
economy2Center: 0,
economy2Right: 0,
cabinCrewRear: 0,
forwardCargo: 0,
rearCargo: 0,
leftAuxPax: 0,
rightAuxPax: 0,
};

View File

@ -0,0 +1,45 @@
export interface Fuel {
main1: number;
main3: number;
main2: number;
upperAux: number;
lowerAux: number;
main1Tip: number;
main3Tip: number;
tail: number;
forwardAux1: number;
forwardAux2: number;
}
// TODO: Extract from CFG at runtime.
export const EmptyArm = -159.6;
// TODO: Extract from CFG at runtime.
export const ArmsFuel = {
main1: -240,
main3: -240,
main2: 120,
upperAux: 0,
lowerAux: 0,
main1Tip: -468,
main3Tip: -468,
tail: -840,
forwardAux1: 60,
forwardAux2: 60,
};
// TODO: Extract following four from CFG at runtime
const rootChord = 34.68;
const wingSpan = 170.5;
const wingArea = 3648;
const quarterMAC = -165; //aero_center
const tipChord = (2 * wingArea) / wingSpan - rootChord;
const taperRatio = tipChord / rootChord;
const MAC = (2 / 3) * rootChord * ((1 + taperRatio + taperRatio ** 2) / (1 + taperRatio)) * 12;
const LEMAC = quarterMAC + (1 / 4) * MAC;
export const toPercentMAC = (positionInInches: number) => {
return Math.abs(((positionInInches - LEMAC) / MAC) * 100);
};