diff --git a/src/app/components/EngineProfile.jsx b/src/app/components/EngineProfile.jsx
index ddaf4cfd..7a19a4a5 100644
--- a/src/app/components/EngineProfile.jsx
+++ b/src/app/components/EngineProfile.jsx
@@ -2,98 +2,58 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import TranslatedComponent from './TranslatedComponent';
 import LineChart from '../components/LineChart';
-import * as Calc from '../shipyard/Calculations';
+import { getBoostMultiplier, getSpeedMultipliers } from 'ed-forge/lib/stats/SpeedProfile';
+import { ShipProps } from 'ed-forge';
+const { LADEN_MASS } = ShipProps;
 
 /**
  * Engine profile for a given ship
  */
 export default class EngineProfile extends TranslatedComponent {
   static propTypes = {
+    code: PropTypes.string.isRequired,
     ship: PropTypes.object.isRequired,
     cargo: PropTypes.number.isRequired,
     fuel: PropTypes.number.isRequired,
-    eng: PropTypes.number.isRequired,
+    pips: PropTypes.number.isRequired,
     boost: PropTypes.bool.isRequired,
-    marker: PropTypes.string.isRequired
   };
 
-  /**
-   * Constructor
-   * @param  {Object} props   React Component properties
-   * @param  {Object} context   React Component context
-   */
-  constructor(props, context) {
-    super(props);
-
-    const ship = this.props.ship;
-
-    this.state = {
-      calcMaxSpeedFunc: this.calcMaxSpeed.bind(this, ship, this.props.eng, this.props.boost)
-    };
-  }
-
-  /**
-   * Update the state if our ship changes
-   * @param  {Object} nextProps   Incoming/Next properties
-   * @param  {Object} nextContext Incoming/Next conext
-   * @return {boolean}            Returns true if the component should be rerendered
-   */
-  componentWillReceiveProps(nextProps, nextContext) {
-    if (nextProps.marker != this.props.marker) {
-      this.setState({ calcMaxSpeedFunc: this.calcMaxSpeed.bind(this, nextProps.ship, nextProps.eng, nextProps.boost) });
-    }
-    return true;
-  }
-
-  /**
-   * Calculate the top speed for this ship given thrusters, mass and pips to ENG
-   * @param  {Object}  ship          The ship
-   * @param  {Object}  eng           The number of pips to ENG
-   * @param  {Object}  boost         If boost is enabled
-   * @param  {Object}  mass          The mass at which to calculate the top speed
-   * @return {number}                The maximum speed
-   */
-  calcMaxSpeed(ship, eng, boost, mass) {
-    // Obtain the top speed
-    return Calc.calcSpeed(mass, ship.speed, ship.standard[1].m, ship.pipSpeed, eng, ship.boost / ship.speed, boost);
-  }
-
   /**
    * Render engine profile
    * @return {React.Component} contents
    */
   render() {
-    const { language, onWindowResize, sizeRatio, tooltip, termtip } = this.context;
-    const { formats, translate, units } = language;
-    const { ship, cargo, eng, fuel, boost } = this.props;
+    const { language } = this.context;
+    const { translate } = language;
+    const { code, ship, pips, boost } = this.props;
 
     // Calculate bounds for our line chart
-    const thrusters = ship.standard[1].m;
-    const minMass = ship.calcLowestPossibleMass({ th: thrusters });
-    const maxMass = thrusters.getMaxMass();
-    const mass = ship.unladenMass + fuel + cargo;
-    const minSpeed = Calc.calcSpeed(maxMass, ship.speed, thrusters, ship.pipSpeed, 0, ship.boost / ship.speed, false);
-    const maxSpeed = Calc.calcSpeed(minMass, ship.speed, thrusters, ship.pipSpeed, 4, ship.boost / ship.speed, true);
-    // Add a mark at our current mass
-    const mark = Math.min(mass, maxMass);
-
-    const code = `${ship.toString()}:${cargo}:${fuel}:${eng}:${boost}`;
-
+    const minMass = ship.getBaseProperty('hullmass');
+    const maxMass = ship.getThrusters().get('enginemaximalmass');
+    const baseSpeed = ship.getBaseProperty('speed');
+    const baseBoost = getBoostMultiplier(ship);
+    const cb = (eng, boost, mass) => {
+      const mult = getSpeedMultipliers(ship, mass)[(boost ? 4 : eng) / 0.5];
+      return baseSpeed * (boost ? baseBoost : 1) * mult;
+    };
     // This graph can have a precipitous fall-off so we use lots of points to make it look a little smoother
     return (
       <LineChart
         xMin={minMass}
         xMax={maxMass}
-        yMin={minSpeed}
-        yMax={maxSpeed}
-        xMark={mark}
+        yMin={cb(0, false, maxMass)}
+        yMax={cb(4, true, minMass)}
+        // Add a mark at our current mass
+        xMark={Math.min(ship.get(LADEN_MASS), maxMass)}
         xLabel={translate('mass')}
         xUnit={translate('T')}
         yLabel={translate('maximum speed')}
         yUnit={translate('m/s')}
-        func={this.state.calcMaxSpeedFunc}
+        func={cb.bind(this, pips.Eng.base + pips.Eng.mc, boost)}
         points={1000}
-        code={code}
+        // Encode boost in code to re-render on state change
+        code={`${Number(boost)}:${code}`}
         aspect={0.7}
       />
     );