diff --git a/app/src/components/three/Bridge3D.tsx b/app/src/components/three/Bridge3D.tsx
index 8a37cbf..580fc8d 100644
--- a/app/src/components/three/Bridge3D.tsx
+++ b/app/src/components/three/Bridge3D.tsx
@@ -113,7 +113,7 @@ function BridgeModel({
           />
           <Text
             position={[-halfL * 0.8, deckY + 1.5, -halfW - 4]}
-            rotation={[0, Math.PI / 4, 0]}
+            rotation={[0, Math.PI, 0]}
             fontSize={1.2}
             color={isDark ? '#60a5fa' : '#3b82f6'}
             anchorX="center"
diff --git a/app/src/components/three/IsolatedRoof3D.tsx b/app/src/components/three/IsolatedRoof3D.tsx
index 7606a19..3c082ed 100644
--- a/app/src/components/three/IsolatedRoof3D.tsx
+++ b/app/src/components/three/IsolatedRoof3D.tsx
@@ -170,7 +170,7 @@ function IsolatedRoofModel({
       </group>
       <Text
         position={[0, centerY + 1.2, -halfDepth - 3.5]}
-        rotation={[0, -3 * Math.PI / 4, 0]}
+        rotation={[0, Math.PI, 0]}
         fontSize={1.2}
         color="#3b82f6"
         anchorX="center"
@@ -260,7 +260,7 @@ function IsolatedRoofModel({
       {/* Rótulo Superior */}
       <Text
         position={[0, centerY + 3, 0]}
-        rotation={[0, -3 * Math.PI / 4, 0]}
+        rotation={[0, Math.PI, 0]}
         fontSize={Math.max(0.4, width / 15)}
         color={textColor}
         anchorX="center"
diff --git a/app/src/components/three/Shelter3D.tsx b/app/src/components/three/Shelter3D.tsx
index c176d20..92e68bd 100644
--- a/app/src/components/three/Shelter3D.tsx
+++ b/app/src/components/three/Shelter3D.tsx
@@ -1,6 +1,3 @@
-import React, { useRef } from 'react';
-import * as THREE from 'three';
-import { useFrame } from '@react-three/fiber';
 import { Text, Grid, Environment } from '@react-three/drei';
 import { WindArrow as GlobalWindArrow } from './WindArrow';
 import { ViewerOrbitControls as OrbitControls } from './ViewerOrbitControls';
@@ -35,7 +32,7 @@ function ShelterModel({
   rightClosure,
   openingPos,
   backRange,
-  windAngle = 0,
+  windAngle: _windAngle = 0,
   viewMode,
 }: Shelter3DProps) {
   const isElevation = viewMode === 'elevation';
@@ -135,15 +132,15 @@ function ShelterModel({
       {/* Seta de Vento Global (Sempre visível para não pular de posição) */}
       <group>
         <GlobalWindArrow 
-          target={[-halfW * 1.2, height * 1.5 - 1.5, -halfD - 5 + 2]}
+          target={[0, height * 1.5 - 1.5, -halfD - 8 + 2]}
           direction={[0, 0, 1]}
-          scale={4}
+          scale={3.2}
         />
         <Text
-          position={[-halfW * 1.2, height * 1.5, -halfD - 5]}
-          rotation={[0, Math.PI / 4, 0]}
-          fontSize={1.2}
-          color={isDark ? '#60a5fa' : '#3b82f6'}
+          position={[0, height * 1.5, -halfD - 8]}
+          rotation={[0, Math.PI, 0]}
+          fontSize={0.96}
+          color={isDark ? '#60a5fa' : '#2563eb'}
           anchorX="center"
           anchorY="bottom"
         >
@@ -166,13 +163,13 @@ function ShelterModel({
       {/* Textos Informativos 3D - Virados para quem olha da frente (-Z) */}
       {!isAirflow && (
         <>
-          <Text position={[0, height + slopeRise + 1.2, 0]} rotation={[0, Math.PI, 0]} fontSize={0.45} color="#e2e8f0">
+          <Text position={[0, height + slopeRise + 1.4, 0]} rotation={[0, Math.PI, 0]} fontSize={0.45} color={isDark ? '#f8fafc' : '#0f172a'}>
             {isElevation ? 'CORTE A-A (Elevação)' : 'Abrigo / Pórtico (NBR 6123)'}
           </Text>
-          <Text position={[0, height + slopeRise + 0.5, 0]} rotation={[0, Math.PI, 0]} fontSize={0.32} color="#f43f5e">
+          <Text position={[0, height + slopeRise + 0.6, 0]} rotation={[0, Math.PI, 0]} fontSize={0.51} color={isDark ? '#ff4d6d' : '#b91c1c'}>
             Arrancamento [+Fz ↑]
           </Text>
-          <Text position={[0, height * 0.5, halfD + 1.2]} rotation={[0, Math.PI, 0]} fontSize={0.32} color="#fb923c">
+          <Text position={[0, height * 0.5, halfD + 1.2]} rotation={[0, Math.PI, 0]} fontSize={0.51} color={isDark ? '#ff9f43' : '#c2410c'}>
             Empuxo no Fundo [+Fx →]
           </Text>
         </>
diff --git a/app/src/components/three/SignAirflowSystem.tsx b/app/src/components/three/SignAirflowSystem.tsx
index 8a383a0..dd2b0ca 100644
--- a/app/src/components/three/SignAirflowSystem.tsx
+++ b/app/src/components/three/SignAirflowSystem.tsx
@@ -13,7 +13,7 @@ export interface SignAirflowSystemProps {
 
 export function SignAirflowSystem({ length, height, groundClearance, alpha, cf }: SignAirflowSystemProps) {
   const isDark = useCanvasTheme() === 'dark';
-  const count = 350;
+  const count = 175;
   const meshRef = useRef<THREE.InstancedMesh>(null);
   const baseY = groundClearance;
   const topY = baseY + height;
@@ -34,7 +34,7 @@ export function SignAirflowSystem({ length, height, groundClearance, alpha, cf }
           Math.random() * (topY * 1.6),
           (Math.random() - 0.5) * limitZ * 2
         ),
-        baseSpeed: 0.12 + Math.random() * 0.08,
+        baseSpeed: 0.06 + Math.random() * 0.04,
         wobbleSpeed: Math.random() * 0.05,
         wobbleOffset: Math.random() * Math.PI * 2,
         currentCpe: 0,
diff --git a/app/src/components/three/Tower3D.tsx b/app/src/components/three/Tower3D.tsx
index 1b9cf33..9dc9ea7 100644
--- a/app/src/components/three/Tower3D.tsx
+++ b/app/src/components/three/Tower3D.tsx
@@ -210,13 +210,13 @@ function TowerModel({
       {isAirflow ? (
         <group>
           <WindArrow 
-            target={[-baseWidth * 1.5, height / 2, -baseWidth * 1.5]}
+            target={[0, height / 2, -baseWidth * 1.5]}
             direction={[0, 0, 1]}
             scale={4}
           />
           <Text
-            position={[-baseWidth * 1.5, height / 2 + 1.5, -baseWidth * 1.5 - 2]}
-            rotation={[0, Math.PI / 4, 0]}
+            position={[0, height / 2 + 1.5, -baseWidth * 1.5 - 2]}
+            rotation={[0, Math.PI, 0]}
             fontSize={1.2}
             color={isDark ? '#60a5fa' : '#3b82f6'}
             anchorX="center"
@@ -240,6 +240,7 @@ function TowerModel({
       </mesh>
       <Text
         position={[0, height + 1.0, 0]}
+        rotation={[0, Math.PI, 0]}
         fontSize={0.5}
         color={isDark ? "#93c5fd" : "#1e40af"}
         anchorX="center"