diff --git a/html/markers.js b/html/markers.js
index 088cc5d..1227909 100644
--- a/html/markers.js
+++ b/html/markers.js
@@ -72,142 +72,156 @@ var shapes = {
 }
 
 var TypeDesignatorIcons = {
-	'A318': 'airliner', // shortened a320
-	'A319': 'airliner', // shortened a320
-	'A320': 'airliner',
-	'A321': 'airliner', // stretched a320
+	'A318': ['airliner', 0.90], // shortened a320
+	'A319': ['airliner', 0.92], // shortened a320
+	'A320': ['airliner', 0.96],
+	'A321': ['airliner', 1.02], // stretched a320
 
-	'A330': 'heavy_2e',
-	'A332': 'heavy_2e',
-	'A333': 'heavy_2e',
-	'DC10': 'heavy_2e',
-	'MD11': 'heavy_2e',
+	'A330': ['heavy_2e', 1],
+	'A332': ['heavy_2e', 1],
+	'A333': ['heavy_2e', 1],
+	'DC10': ['heavy_2e', 1],
+	'MD11': ['heavy_2e', 1],
 
-	'A388': 'heavy_4e',
+	'A388': ['heavy_4e', 1.08],
 
 	// dubious since these are old-generation 737s
 	// but the shape is similar
-	'B731': 'airliner',
-	'B732': 'airliner',
-	'B733': 'airliner',
-	'B734': 'airliner',
-	'B735': 'airliner',
+	'B731': ['airliner', 0.8],
+	'B732': ['airliner', 0.8],
+	'B733': ['airliner', 0.8],
+	'B734': ['airliner', 0.9],
+	'B735': ['airliner', 1],
 
 	// these probably need reworking
 	// since they vary in length
-	'B736': 'airliner',
-	'B737': 'airliner',
-	'B738': 'airliner',
-	'B739': 'airliner',
+	'B736': ['airliner', 0.90],
+	'B737': ['airliner', 0.92],
+	'B738': ['airliner', 0.96],
+	'B739': ['airliner', 1],
 
-	'B741': 'heavy_4e',
-	'B742': 'heavy_4e',
-	'B743': 'heavy_4e',
-	'B744': 'heavy_4e',
-	'B74D': 'heavy_4e',
-	'B74S': 'heavy_4e',
-	'B74R': 'heavy_4e',
-	'BLCF': 'heavy_2e',
-	'BSCA': 'heavy_4e', // hah!
-	'B748': 'heavy_4e',
+	'B741': ['heavy_4e', 1],
+	'B742': ['heavy_4e', 1],
+	'B743': ['heavy_4e', 1],
+	'B744': ['heavy_4e', 1],
+	'B74D': ['heavy_4e', 1],
+	'B74S': ['heavy_4e', 1],
+	'B74R': ['heavy_4e', 1],
+	'BLCF': ['heavy_2e', 1],
+	'BSCA': ['heavy_4e', 1], // hah!
+	'B748': ['heavy_4e', 1],
 
-	'B772': 'heavy_2e', // all pretty similar except for length
-	'B77W': 'heavy_2e',
-	'B773': 'heavy_2e',
-	'B77L': 'heavy_2e',
+	'B752': ['airliner', 1.04],
+	'B753': ['airliner', 1.04],
 
-	'E170': 'jet_swept',
-	'E45X': 'jet_swept',
-	'B712': 'jet_swept',
-	'C650': 'jet_swept',
-	'C750': 'jet_swept',
-	'E135': 'jet_swept',
-	'E145': 'jet_swept',
-	'CL30': 'jet_swept',
-	'CL35': 'jet_swept',
-	'CL60': 'jet_swept',
-	'GL5T': 'jet_swept',
-	'GLF2': 'jet_swept', // close enough
-	'GLF3': 'jet_swept',
-	'GLF4': 'jet_swept',
-	'GLF5': 'jet_swept',
-	'GLF6': 'jet_swept',
-	'CRJ1': 'jet_swept',
-	'CRJ2': 'jet_swept',
-	'CRJ7': 'jet_swept',
-	'CRJ9': 'jet_swept',
-	'H25A': 'jet_swept',
-	'H25B': 'jet_swept',
-	'H25C': 'jet_swept',
-	'MD80': 'jet_swept',
-	'MD81': 'jet_swept',
-	'MD82': 'jet_swept',
-	'MD83': 'jet_swept',
-	'MD87': 'jet_swept',
-	'MD88': 'jet_swept',
+	'B772': ['heavy_2e', 1.04], // all pretty similar except for length
+	'B77W': ['heavy_2e', 1.04],
+	'B773': ['heavy_2e', 1.04],
+	'B77L': ['heavy_2e', 1.04],
+
+	'E170': ['jet_swept', 1],
+	'E45X': ['jet_swept', 1],
+	'B712': ['jet_swept', 1],
+	'C56X': ['jet_swept', 0.92],
+	'C510': ['jet_swept', 0.92],
+	'C25A': ['jet_swept', 0.92],
+	'C525': ['jet_swept', 0.92],
+	'C550': ['jet_swept', 0.92],
+	'C560': ['jet_swept', 0.92],
+	'C650': ['jet_swept', 0.92],
+	'C68A': ['jet_swept', 0.92],
+	'C750': ['jet_swept', 0.92],
+	'E55P': ['jet_swept', 0.88],
+	'E135': ['jet_swept', 1],
+	'E145': ['jet_swept', 1],
+	'CL30': ['jet_swept', 1],
+	'CL35': ['jet_swept', 1],
+	'CL60': ['jet_swept', 1],
+	'GLEX': ['jet_swept', 1],
+	'GL5T': ['jet_swept', 1],
+	'GLF2': ['jet_swept', 1],
+	'GLF3': ['jet_swept', 1],
+	'GLF4': ['jet_swept', 1],
+	'GLF5': ['jet_swept', 1],
+	'GLF6': ['jet_swept', 1],
+	'CRJ1': ['jet_swept', 1],
+	'CRJ2': ['jet_swept', 1],
+	'CRJ7': ['jet_swept', 1],
+	'CRJ9': ['jet_swept', 1],
+	'H25A': ['jet_swept', 0.92],
+	'H25B': ['jet_swept', 0.92],
+	'H25C': ['jet_swept', 0.92],
+	'LR45': ['jet_swept', 0.92],
+	'MD80': ['jet_swept', 1],
+	'MD81': ['jet_swept', 1],
+	'MD82': ['jet_swept', 1],
+	'MD83': ['jet_swept', 1],
+	'MD87': ['jet_swept', 1],
+	'MD88': ['jet_swept', 1],
+
+	'PRM1': ['jet_swept', 0.88],
 
 
+	'A37': ['hi_perf', 1],
+	'A700': ['hi_perf', 1],
+	'LEOP': ['hi_perf', 1],
+	'ME62': ['hi_perf', 1],
+	'T2': ['hi_perf', 1],
+	'T37': ['hi_perf', 1],
+	'T38': ['hi_perf', 1],
+	'A10': ['hi_perf', 1],
+	'A148': ['hi_perf', 1],
+	'A3': ['hi_perf', 1],
+	'A6': ['hi_perf', 1],
+	'AJET': ['hi_perf', 1],
+	'AT3': ['hi_perf', 1],
+	'CKUO': ['hi_perf', 1],
+	'EUFI': ['hi_perf', 1],
+	'F1': ['hi_perf', 1],
+	'F100': ['hi_perf', 1],
+	'F111': ['hi_perf', 1],
+	'F117': ['hi_perf', 1],
+	'F14': ['hi_perf', 1],
+	'F15': ['hi_perf', 1],
+	'F18': ['hi_perf', 1],
+	'F22': ['hi_perf', 1],
+	'F22A': ['hi_perf', 1],
+	'F4': ['hi_perf', 1],
+	'F5': ['hi_perf', 1],
+	'FOUG': ['hi_perf', 1],
+	'J8A': ['hi_perf', 1],
+	'J8B': ['hi_perf', 1],
+	'JH7': ['hi_perf', 1],
+	'LTNG': ['hi_perf', 1],
+	'METR': ['hi_perf', 1],
+	'MG19': ['hi_perf', 1],
+	'MG25': ['hi_perf', 1],
+	'MG29': ['hi_perf', 1],
+	'MG31': ['hi_perf', 1],
+	'MG44': ['hi_perf', 1],
+	'MIR4': ['hi_perf', 1],
+	'MT2': ['hi_perf', 1],
+	'Q5': ['hi_perf', 1],
+	'RFAL': ['hi_perf', 1],
+	'S3': ['hi_perf', 1],
+	'S37': ['hi_perf', 1],
+	'SR71': ['hi_perf', 1],
+	'SU15': ['hi_perf', 1],
+	'SU24': ['hi_perf', 1],
+	'SU25': ['hi_perf', 1],
+	'SU27': ['hi_perf', 1],
+	'T22M': ['hi_perf', 1],
+	'T4': ['hi_perf', 1],
+	'TOR': ['hi_perf', 1],
+	'TU22': ['hi_perf', 1],
+	'VAUT': ['hi_perf', 1],
+	'WB57': ['hi_perf', 1],
+	'Y130': ['hi_perf', 1],
+	'YK28': ['hi_perf', 1],
+	// 'BE20': [_b200, 1],
 
-	'A37': 'hi_perf',
-	'A700': 'hi_perf',
-	'LEOP': 'hi_perf',
-	'ME62': 'hi_perf',
-	'T2': 'hi_perf',
-	'T37': 'hi_perf',
-	'T38': 'hi_perf',
-	'A10': 'hi_perf',
-	'A148': 'hi_perf',
-	'A3': 'hi_perf',
-	'A6': 'hi_perf',
-	'AJET': 'hi_perf',
-	'AT3': 'hi_perf',
-	'CKUO': 'hi_perf',
-	'EUFI': 'hi_perf',
-	'F1': 'hi_perf',
-	'F100': 'hi_perf',
-	'F111': 'hi_perf',
-	'F117': 'hi_perf',
-	'F14': 'hi_perf',
-	'F15': 'hi_perf',
-	'F18': 'hi_perf',
-	'F22': 'hi_perf',
-	'F22A': 'hi_perf',
-	'F4': 'hi_perf',
-	'F5': 'hi_perf',
-	'FOUG': 'hi_perf',
-	'J8A': 'hi_perf',
-	'J8B': 'hi_perf',
-	'JH7': 'hi_perf',
-	'LTNG': 'hi_perf',
-	'METR': 'hi_perf',
-	'MG19': 'hi_perf',
-	'MG25': 'hi_perf',
-	'MG29': 'hi_perf',
-	'MG31': 'hi_perf',
-	'MG44': 'hi_perf',
-	'MIR4': 'hi_perf',
-	'MT2': 'hi_perf',
-	'Q5': 'hi_perf',
-	'RFAL': 'hi_perf',
-	'S3': 'hi_perf',
-	'S37': 'hi_perf',
-	'SR71': 'hi_perf',
-	'SU15': 'hi_perf',
-	'SU24': 'hi_perf',
-	'SU25': 'hi_perf',
-	'SU27': 'hi_perf',
-	'T22M': 'hi_perf',
-	'T4': 'hi_perf',
-	'TOR': 'hi_perf',
-	'TU22': 'hi_perf',
-	'VAUT': 'hi_perf',
-	'WB57': 'hi_perf',
-	'Y130': 'hi_perf',
-	'YK28': 'hi_perf',
-	// 'BE20': _b200,
-
-	// 'C130': _c130,
-	// 'C30J': _c130
+	// 'C130': [_c130, 1],
+	// 'C30J': [_c130
 };
 
 // Maps ICAO aircraft type description codes (e.g. "L2J") to aircraft icons. This is used if the ICAO type designator (e.g. "B731")
@@ -259,7 +273,9 @@ var CategoryIcons = {
 
 function getBaseMarker(category, typeDesignator, typeDescription, wtc) {
 	if (typeDesignator in TypeDesignatorIcons) {
-		return shapes[TypeDesignatorIcons[typeDesignator]];
+		var shape = TypeDesignatorIcons[typeDesignator][0];
+		var scaling = TypeDesignatorIcons[typeDesignator][1];
+		return [shapes[shape], scaling];
 	}
 
 	if (typeDescription !== undefined && typeDescription !== null && typeDescription.length === 3) {
diff --git a/html/planeObject.js b/html/planeObject.js
index 4cce646..b82dfa4 100644
--- a/html/planeObject.js
+++ b/html/planeObject.js
@@ -83,6 +83,7 @@ function PlaneObject(icao) {
 	this.markerIcon = null;
 	this.markerStyleKey = null;
 	this.markerSvgKey = null;
+	this.baseScale = 1;
 	this.filter = {};
 
 	// start from a computed registration, let the DB override it
@@ -495,6 +496,10 @@ PlaneObject.prototype.updateIcon = function() {
 	if (this.baseMarkerKey != baseMarkerKey) {
 		this.baseMarkerKey = baseMarkerKey;
 		this.baseMarker = getBaseMarker(this.category, this.icaotype, this.typeDescription, this.wtc);
+		if (this.baseMarker.length == 2) {
+			this.baseScale = this.baseMarker[1];
+			this.baseMarker = this.baseMarker[0];
+		}
 	}
 	var rotation = this.track;
 	if (rotation == null) {
@@ -513,12 +518,13 @@ PlaneObject.prototype.updateIcon = function() {
 		//console.log(this.icao + " new icon and style " + this.markerSvgKey + " -> " + svgKey);
 
 		this.markerSvgKey = svgKey;
+		this.scaleCache = scaleFactor * this.baseScale;
 
 		var icon = new ol.style.Icon({
 			anchor: [0.5, 0.5],
 			anchorXUnits: 'fraction',
 			anchorYUnits: 'fraction',
-			scale: scaleFactor,
+			scale: this.scaleCache,
 			imgSize: this.baseMarker.size,
 			src: svgPathToURI(this.baseMarker.svg, outline, col, add_stroke),
 			rotation: (this.baseMarker.noRotate ? 0 : rotation * Math.PI / 180.0),
@@ -542,9 +548,9 @@ PlaneObject.prototype.updateIcon = function() {
 		this.markerIcon.setRotation(rotation * Math.PI / 180.0);
 	}
 
-	if (this.scaleFactorCache != scaleFactor) {
-		this.scaleCache = scaleFactor;
-		this.markerIcon.setScale(scaleFactor);
+	if (this.scaleCache != scaleFactor * this.baseScale) {
+		this.scaleCache = scaleFactor * this.baseScale;
+		this.markerIcon.setScale(this.scaleCache);
 	}
 
 	/*
diff --git a/html/script.js b/html/script.js
index bb93003..742ac3b 100644
--- a/html/script.js
+++ b/html/script.js
@@ -800,7 +800,8 @@ function initialize_map() {
 		scaleFactor = 1.2*Math.max(0.2, Math.min(1.2, 0.15 * Math.pow(1.25, ZoomLvl)));
 		for (var plane in Planes) {
 			if (Planes[plane].markerIcon)
-				Planes[plane].markerIcon.setScale(scaleFactor);
+				this.scaleCache = scaleFactor * this.baseScale;
+				Planes[plane].markerIcon.setScale(this.scaleCache);
 		}
 	});