Why isn't the .Touched function working?

I've made a kind of simple script for boats and swimming, but I got stuck with the following problem: I've made a part that checks everything in front of you to make sure that nothing's blocking the way. All of a sudden the .Touched function doesn't seem to react, which causes the collision detection to not work. This is my code, I hope you can help:

local bat = Instance.new("Part", script.Value.Value.Parent)
				bat.FormFactor = "Custom"
				bat.Transparency = 0
				bat.Size = Vector3.new(3, 3, 1)
				bat.CFrame = plr.Character.Torso.CFrame*CFrame.new(0, 0, -plr.Character.Torso.Size.Z)
				bat.Anchored = true
				bat.CanCollide = false
				for i = 1, 10 do
					bat.CFrame = bat.CFrame*CFrame.new(0, 0, -0.02)
					bat.Touched:connect(function(Part)
						if Part.Parent ~= bat.Parent then
							cw = true
						elseif Part.Parent == bat.Parent then
							if Part.Name ~= "Water" then
								cw = true
							end
						end
					end)
					wait()
				end
				bat:remove()
				if cw == false then
					plr.Character.Torso.CFrame = plr.Character.Torso.CFrame*CFrame.new(0, 0, -0.2)
				end
				cw = false

Also the script is a LocalScript.

Correct me if I'm mistaken, but Touched is not a property of Bat, so try something like this:

bat.onTouch:connect...

I am very new to scripting so I'm not too sure but might as well try...