From 55c46cd8686bc625446a98a9fa4f0f95fa3dd7dd Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Thu, 10 Mar 2022 11:10:00 +1100
Subject: [PATCH] Plane: protect against short stop_distance

---
 ArduPlane/quadplane.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ArduPlane/quadplane.cpp b/ArduPlane/quadplane.cpp
index b48a4316c8..43582fe777 100644
--- a/ArduPlane/quadplane.cpp
+++ b/ArduPlane/quadplane.cpp
@@ -3541,7 +3541,7 @@ float QuadPlane::stopping_distance(float ground_speed_squared) const
  */
 float QuadPlane::accel_needed(float stop_distance, float ground_speed_squared) const
 {
-    return ground_speed_squared / (2 * stop_distance);
+    return ground_speed_squared / (2 * MAX(1,stop_distance));
 }
 
 /*