diff --git a/entities/plane.lua b/entities/plane.lua
index 623aa7b..fe5ea5d 100644
--- a/entities/plane.lua
+++ b/entities/plane.lua
@@ -135,6 +135,12 @@ Plane = Class{
         self.powerupmode = nil
 
 	self.outOfBoundsArrow = nil
+
+	self.motorSound = love.audio.newSource("resources/audio/motorsound.wav", "static")
+
+        self.motorSound:rewind()
+        self.motorSound:play()
+	self.motorSound:setLooping(true)
     end;
 
     receiveDamage = function(self, amount)
@@ -150,10 +156,12 @@ Plane = Class{
         self.machinegun:stopShooting()
         Animation(self.body:getX(), self.body:getY(), self.level, explosionFrames)
         self:getOwner():setPlane(nil)
+	self.motorSound:stop()
         self:delete()
     end;
 
     delete = function(self)
+	self.motorSound:stop()
 	PhysicsEntity.delete(self)
     end;
 
@@ -379,6 +387,9 @@ Plane = Class{
         local xy = to_base(mass_x, mass_y)
         local x, y = VectorLight.add(xy[1][1], xy[2][1], self.body:getX(), self.body:getY())
         table.insert(self.debug, DebugCircle("mc", x, y))
+
+	local motorEffort = (self.motorPower / (math.max(fwd_vel, 100) + 1) - 1) / 2 + 1
+	self.motorSound:setPitch(motorEffort * self.motorPower / ENGINE_MAX + 0.5)
     end;
 
     draw = function(self)
diff --git a/resources/audio/motorsound.scd b/resources/audio/motorsound.scd
new file mode 100644
index 0000000..b5e6fda
--- /dev/null
+++ b/resources/audio/motorsound.scd
@@ -0,0 +1,134 @@
+// SuperCollder motor sound
+
+{ SinOsc.ar(110, 0, 0.2) }.play;
+{ [SinOsc.ar(440, 0, 0.2), SinOsc.ar(442, 0, 0.2)] }.play;
+
+{ FSinOsc.ar(FSinOsc.ar(10, 0.0, 400, 450)) * 0.1 }.play;
+
+(
+motor = { arg freq = 100;
+	{ SinOsc.ar(SinOsc.kr(20, 0.0, 20, freq), 0.0, 0.1) +
+		SinOsc.ar(SinOsc.kr(20, 0.0, 20, freq * 2), 0.0, 0.1) }
+};
+)
+
+(
+g = { arg freq = 100;
+	{ SinOsc.ar(SinOsc.kr(20, 0.0, 20, freq), 0.0, 0.1) +
+		SinOsc.ar(SinOsc.kr(20, 0.0, 20, freq * 2), 0.0, 0.1)} };
+
+g.value({ XLine.kr(100, 130, 10) }).play
+)
+
+(
+f = { arg a, b;
+    a - b;
+};
+f.value(5, 3);
+)
+
+SynthDef("motor", { arg freq = 100;
+	Out.ar(0,
+		SinOsc.ar(SinOsc.kr(20, 0.0, 20, freq), 0.0, 0.1) +
+		SinOsc.ar(SinOsc.kr(20, 0.0, 20, freq * 2), 0.0, 0.1) +
+        0
+	)
+	}).add;
+
+Synth.new("motor", ["freq", 100]);
+Synth.new("motor", ["freq", XLine.kr(100, 200, 10)]);
+
+(
+s.recSampleFormat = "int16";
+    s.recChannels = 1;
+    s.recHeaderFormat = "WAV";
+
+    s.waitForBoot({
+       s.prepareForRecord("myoutput.wav");
+      Synth.new("motor", ["freq", 100]);
+      s.record;
+      wait(5);
+      s.stopRecording;
+    });
+)
+
+
+SynthDef("tutorial-Rand", { Out.ar(0, SinOsc.ar(Rand(440, 660), 0, 0.2)) }).add;
+
+Synth("tutorial-Rand");
+
+(
+plot { [
+    SyncSaw.ar(800, 1200),
+    Impulse.ar(800) // to show sync rate
+] }
+)
+
+{ Pulse.ar(30, 0.5, 0.05) }.play;;
+
+{ SyncSaw.ar(30, 40, 0.1) }.play;
+//////
+
+// The makeEffect function below wraps a simpler function within itself and provides
+// a crossfade into the effect (so you can add it without clicks), control over wet
+// and dry mix, etc.
+// Such functionality is useful for a variety of effects, and SynthDef-wrap
+// lets you reuse the common code.
+(
+// the basic wrapper
+~makeEffect = {| name, func, lags, numChannels = 2 |
+
+    SynthDef(name, {| i_bus = 0, gate = 1, wet = 1|
+        var in, out, env, lfo;
+        in = In.ar(i_bus, numChannels);
+        env = Linen.kr(gate, 2, 1, 2, 2); // fade in the effect
+
+        // call the wrapped function. The in and env arguments are passed to the function
+        // as the first two arguments (prependArgs).
+        // Any other arguments of the wrapped function will be Controls.
+        out = SynthDef.wrap(func, lags, [in, env]);
+
+        XOut.ar(i_bus, wet * env, out);
+    }, [0, 0, 0.1] ).add;
+
+};
+)
+
+// now make a wah
+(
+~makeEffect.value(\wah, {|in, env, rate = 0.7, ffreq = 1200, depth = 0.8, rq = 0.1|
+    // in and env come from the wrapper. The rest are controls
+     var lfo;
+    lfo = LFNoise1.kr(rate, depth * ffreq, ffreq);
+    RLPF.ar(in, lfo, rq, 10).distort * 0.15; },
+    [0.1, 0.1, 0.1, 0.1],  // lags for rate ffreq, depth and rq
+    2    // numChannels
+);
+)
+
+// now make a simple reverb
+(
+~makeEffect.value(\reverb, {|in, env|
+    // in and env come from the wrapper.
+    var input;
+    input = in;
+    16.do({ input = AllpassC.ar(input, 0.04, Rand(0.001,0.04), 3)});
+    input; },
+    nil,  // no lags
+    2    // numChannels
+);
+)
+
+// something to process
+x = { {Decay2.ar(Dust2.ar(3), mul: PinkNoise.ar(0.2))} ! 2}.play;
+
+y = Synth.tail(s, \wah);
+z = Synth.tail(s, \reverb, [\wet, 0.5]);
+
+// we used an arg named gate, so Node-release can crossfade out the effects
+y.release;
+
+// setting gate to zero has the same result
+z.set(\gate, 0);
+
+x.free;
\ No newline at end of file
diff --git a/resources/audio/motorsound.wav b/resources/audio/motorsound.wav
new file mode 100644
index 0000000..9071531
Binary files /dev/null and b/resources/audio/motorsound.wav differ