diff --git a/Spigot-Server-Patches/0405-Configurable-projectile-relative-velocity.patch b/Spigot-Server-Patches/0405-Configurable-projectile-relative-velocity.patch
new file mode 100644
index 000000000..1d811151f
--- /dev/null
+++ b/Spigot-Server-Patches/0405-Configurable-projectile-relative-velocity.patch
@@ -0,0 +1,69 @@
+From d8c12019140334bf58354a929f9681fd457f6c66 Mon Sep 17 00:00:00 2001
+From: Lucavon <lucavonlp@gmail.com>
+Date: Tue, 23 Jul 2019 20:29:20 -0500
+Subject: [PATCH] Configurable projectile relative velocity
+
+This patch adds an option "disable relative projectile velocity", which, when
+nabled, will cause projectiles to ignore the shooter's current velocity,
+like they did in Minecraft 1.8 and prior.
+If a player is falling, for example, their shooting range will be drastically
+reduced, as a downwards velocity is applied to the projectile. This prevents
+players from saving themselves from falling off floating islands, for example,
+as a thrown ender pearl will not make it back to the island, while it would
+have in 1.8.
+
+While this could easily be done with plugins, too, there are multiple problems:
+P1) If multiple plugins cancel the velocity by subtracting the shooter's velocity
+from the projectile's velocity, the projectile's velocity would be different.
+As there's no way to detect whether the projectile's velocity has already been
+adjusted to ignore the player's velocity, plugins can't not do it if it's not
+necessary.
+P2) I've noticed some inconsistencies, e.g. weird velocity when shooting while
+using an elytra. Checking for those inconsistencies is possible, but not as
+efficient as just not applying the velocity in the first place.
+P3) Solutions for 1) and especially 2) might not be future-proof, while this
+server-internal fix makes this change future-proof.
+
+diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+index ff520d9e86..318a470eea 100644
+--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
++++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+@@ -557,4 +557,9 @@ public class PaperWorldConfig {
+         }
+         log("Anti-Xray: " + (antiXray ? "enabled" : "disabled") + " / Engine Mode: " + engineMode.getDescription() + " / Chunk Edge Mode: " + chunkEdgeMode.getDescription() + " / Up to " + ((maxChunkSectionIndex + 1) * 16) + " blocks / Update Radius: " + updateRadius);
+     }
++
++    public boolean disableRelativeProjectileVelocity;
++    private void disableRelativeProjectileVelocity() {
++        disableRelativeProjectileVelocity = getBoolean("game-mechanics.disable-relative-projectile-velocity", false);
++    }
+ }
+diff --git a/src/main/java/net/minecraft/server/EntityArrow.java b/src/main/java/net/minecraft/server/EntityArrow.java
+index af0f5cb00f..25ddaae482 100644
+--- a/src/main/java/net/minecraft/server/EntityArrow.java
++++ b/src/main/java/net/minecraft/server/EntityArrow.java
+@@ -85,7 +85,7 @@ public abstract class EntityArrow extends Entity implements IProjectile {
+         float f7 = MathHelper.cos(f1 * 0.017453292F) * MathHelper.cos(f * 0.017453292F);
+ 
+         this.shoot((double) f5, (double) f6, (double) f7, f3, f4);
+-        this.setMot(this.getMot().add(entity.getMot().x, entity.onGround ? 0.0D : entity.getMot().y, entity.getMot().z));
++        if (!entity.world.paperConfig.disableRelativeProjectileVelocity) this.setMot(this.getMot().add(entity.getMot().x, entity.onGround ? 0.0D : entity.getMot().y, entity.getMot().z)); // Paper - allow disabling relative velocity
+     }
+ 
+     @Override
+diff --git a/src/main/java/net/minecraft/server/EntityProjectile.java b/src/main/java/net/minecraft/server/EntityProjectile.java
+index 18d28a151a..bd4ca73f6d 100644
+--- a/src/main/java/net/minecraft/server/EntityProjectile.java
++++ b/src/main/java/net/minecraft/server/EntityProjectile.java
+@@ -43,7 +43,7 @@ public abstract class EntityProjectile extends Entity implements IProjectile {
+         this.shoot((double) f5, (double) f6, (double) f7, f3, f4);
+         Vec3D vec3d = entity.getMot();
+ 
+-        this.setMot(this.getMot().add(vec3d.x, entity.onGround ? 0.0D : vec3d.y, vec3d.z));
++        if (!entity.world.paperConfig.disableRelativeProjectileVelocity) this.setMot(this.getMot().add(vec3d.x, entity.onGround ? 0.0D : vec3d.y, vec3d.z)); // Paper - allow disabling relative velocity
+     }
+ 
+     @Override
+-- 
+2.22.0
+