diff --git a/labs/airport/app.js b/labs/airport/app.js
index 480177d..0e6405e 100644
--- a/labs/airport/app.js
+++ b/labs/airport/app.js
@@ -241,8 +241,8 @@ function clipToHull(points,poly){
   }
   return out;
 }
-function apronSector(hull,side,outerR,steps=12){
-  const a0=-Math.PI/2+side*Math.PI/3,a1=a0+Math.PI/3,pts=[];
+function apronSector(hull,side,outerR,steps=16,inset=.035){
+  const a0=-Math.PI/2+side*Math.PI/3+inset,a1=-Math.PI/2+(side+1)*Math.PI/3-inset,pts=[];
   for(let i=0;i<=steps;i++){
     const a=a0+(a1-a0)*i/steps,dir={x:Math.cos(a),y:Math.sin(a)};
     const t=rimCrossing(hull,{x:0,y:0},dir),r=(t??0)+.08;
@@ -254,6 +254,16 @@ function apronSector(hull,side,outerR,steps=12){
   }
   return pts;
 }
+function rgba(hex,a){const n=hex.replace('#','');return `rgba(${parseInt(n.slice(0,2),16)},${parseInt(n.slice(2,4),16)},${parseInt(n.slice(4,6),16)},${a})`;}
+function drawApronFans(hull,outerR){
+  const fill='#d1d1d1';
+  for(let side=0;side<6;side++){
+    polygon(apronSector(hull,side,outerR),rgba(fill,.2));
+    const inset=.035,a0=-Math.PI/2+side*Math.PI/3+inset,a1=-Math.PI/2+(side+1)*Math.PI/3-inset;
+    ctx.beginPath();ctx.arc(0,0,outerR,a0,a1);
+    ctx.strokeStyle=rgba(fill,.16);ctx.lineWidth=.055;ctx.lineCap='round';ctx.stroke();
+  }
+}
 function aircraft(plane,where,alpha=1){
   ctx.save();ctx.translate(where.x,where.y);ctx.globalAlpha=alpha;
   const color=pigments[plane.color].color;
@@ -281,12 +291,7 @@ function draw(now){
   const radius=boardRadius(game.level.cells),apronR=apronDistance(radius);
   const stacks=Math.max(1,...[0,1,2,3,4,5].map(s=>game.level.arrivals.filter(a=>a.side===s).length));
   const outerR=apronR+(stacks-1)*1.12+.85;
-  for(let side=0;side<6;side++)polygon(apronSector(hullPts,side,outerR),materials.shadowSoft);
-  for(let side=0;side<6;side++){
-    const a=-Math.PI/2+side*Math.PI/3,dir={x:Math.cos(a),y:Math.sin(a)};
-    const t=rimCrossing(hullPts,{x:0,y:0},dir),inner=(t??0)+.08;
-    line([{x:dir.x*inner,y:dir.y*inner},{x:dir.x*outerR,y:dir.y*outerR}],materials.shadow,.045);
-  }
+  drawApronFans(hullPts,outerR);
   ctx.save();
   if(rotation){const p=Math.min(1,(now-rotation.start)/rotation.duration),u=p*p*(3-2*p);ctx.rotate(rotation.direction*Math.PI/3*u);}
   const tray=grow=>roundedPoly(hull(board.cells.flatMap(c=>{const p=position(c.q,c.r);return hexPoints(p.x,p.y,TRAY_PAD+grow);})),.9);