diff --git a/packages/class/src/class.ts b/packages/class/src/class.ts
index 5b0f6b3..8292372 100644
--- a/packages/class/src/class.ts
+++ b/packages/class/src/class.ts
@@ -4,13 +4,6 @@ import type { ClassConfig } from "./config";
 const rho = 1.2; /** Density of air [kg m-3] */
 const cp = 1005.0; /** Specific heat of dry air [J kg-1 K-1] */
 
-// More constants that were stored as model props
-// TODO: should these be settable via config? Or dynamically calculated? ???
-// const ac = 0.0; /** Cloud core fraction [-] */  // unused
-const M = 0.0; /** Cloud core mass flux [m s-1] */
-const wqM = 0.0; /** Cloud core moisture flux [kg kg-1 m s-1] */
-// const wCO2M = 0; /** CO2 mass flux [ppm m s-1] */  // unused
-
 /**
  * CLASS model definition
  * @property _cfg: object containing the model settings
@@ -58,7 +51,7 @@ export class CLASS {
 
   /** Tendency of CLB [m s-1]*/
   get htend(): number {
-    return this.we + this.ws + this.wf - M;
+    return this.we + this.ws;
   }
 
   /** Tendency of mixed-layer potential temperature [K s-1] */
@@ -72,29 +65,20 @@ export class CLASS {
   /** Tendency of potential temperature jump at h [K s-1] */
   get dthetatend(): number {
     const w_th_ft = 0.0; // TODO: add free troposphere switch
-    return (
-      this._cfg.mixedLayer.gammatheta * (this.we + this.wf - M) -
-      this.thetatend +
-      w_th_ft
-    );
+    return this._cfg.mixedLayer.gammatheta - this.thetatend + w_th_ft;
   }
 
   /** Tendency of mixed-layer specific humidity [kg kg-1 s-1] */
   get qtend(): number {
     return (
-      (this._cfg.mixedLayer.wq - this.wqe - wqM) / this.h +
-      this._cfg.mixedLayer.advq
+      (this._cfg.mixedLayer.wq - this.wqe) / this.h + this._cfg.mixedLayer.advq
     );
   }
 
   /** Tendency of specific humidity jump at h[kg kg-1 s-1] */
   get dqtend(): number {
     const w_q_ft = 0; // TODO: add free troposphere switch
-    return (
-      this._cfg.mixedLayer.gammaq * (this.we + this.wf - M) -
-      this.qtend +
-      w_q_ft
-    );
+    return this._cfg.mixedLayer.gammaq - this.qtend + w_q_ft;
   }
 
   /** Entrainment velocity [m s-1]. */
@@ -114,11 +98,6 @@ export class CLASS {
     return -this._cfg.mixedLayer.divU * this.h;
   }
 
-  /** Mixed-layer growth due to radiative divergence [m s-1]. */
-  get wf(): number {
-    return this._cfg.radiation.dFz / (rho * cp * this.dtheta);
-  }
-
   /** Entrainment kinematic heat flux [K m s-1]. */
   get wthetae(): number {
     return -this.we * this.dtheta;
diff --git a/packages/class/src/config.ts b/packages/class/src/config.ts
index 8781fd2..c578176 100644
--- a/packages/class/src/config.ts
+++ b/packages/class/src/config.ts
@@ -75,20 +75,10 @@ const mixedLayer = z
   })
   .describe("Mixed layer");
 
-const radiation = z
-  .object({
-    dFz: z.coerce
-      .number()
-      .default(0)
-      .describe("Cloud top radiative divergence [W m-2]"),
-  })
-  .describe("Radiation");
-
 export const classConfig = z.object({
   initialState: initialState.default({}),
   timeControl: timeControl.default({}),
   mixedLayer: mixedLayer.default({}),
-  radiation: radiation.default({}),
 });
 
 export type ClassConfig = z.infer<typeof classConfig>;