Problem with an entity code

[A Fghtr Pilot]

function ENT:Initialize()
	 
		self:SetModel( self.Model )
		self:PhysicsInit( SOLID_VPHYSICS )
		self:SetMoveType( MOVETYPE_VPHYSICS )
		self:SetSolid( SOLID_VPHYSICS )
		self:SetUseType( SIMPLE_USE )
	 
			local phys = self:GetPhysicsObject()
		if (phys:IsValid()) then
			phys:EnableMotion( true )
		end
	end

How come this only enables motion when I touch it? Upon spawning the entity with a SWEP I made, it just stays in place until I touch it...

[Rubat]

Call Wake() on phys