diff --git a/functions/odeFunctions/ballistic.m b/functions/odeFunctions/ballistic.m
index 0194eff2564ba79ba00e30e47181915a47a14891..505fc2cf4aa6678e685c420d484c5ecf6ad9101b 100644
--- a/functions/odeFunctions/ballistic.m
+++ b/functions/odeFunctions/ballistic.m
@@ -149,7 +149,7 @@ betaOut = beta;
 
 %% INTERPOLATE AERODYNAMIC COEFFICIENTS:
 
-if abs(alpha)>25*pi/180 || abs(beta)>25*pi/180
+if abs(alpha)>25*pi/180 || abs(beta)>25*pi/180 && altitude < environment.effectiveRampAltitude
     coeffsValues = interpN( rocket.coefficientsHighAOA.total,...
         {rocket.coefficientsHighAOA.state.alphas, rocket.coefficientsHighAOA.state.machs, ...
         rocket.coefficientsHighAOA.state.betas, rocket.coefficientsHighAOA.state.altitudes}, ...