diff --git a/app/controllers/barcas_controller.rb b/app/controllers/barcas_controller.rb
index a52e839..4471e8b 100644
--- a/app/controllers/barcas_controller.rb
+++ b/app/controllers/barcas_controller.rb
@@ -78,14 +78,14 @@ class BarcasController < ApplicationController
 
   # DELETE /barcas/:id
   #
-  # Elimina una barca y su tripulación
+  # Elimina una barca y su tripulación, solo si no tiene consensos
   #
   # @return hash { id: @int, created_at: @date, updated_at: @date,
   #                nombre: @string, descripcion: @text, abordada: @bool }
   def destroy
     @barca = current_pirata.barcas.find(params[:id])
 
-    if @barca.destroy
+    if @barca.consensos.count.zero? && @barca.destroy
       notify(subject: :destroy, urgency: :high)
       render status: :no_content
     else
diff --git a/app/views/barcas/_barca.json.jbuilder b/app/views/barcas/_barca.json.jbuilder
index 8aa5feb..c596bd3 100644
--- a/app/views/barcas/_barca.json.jbuilder
+++ b/app/views/barcas/_barca.json.jbuilder
@@ -3,3 +3,4 @@
 json.call(barca, :id, :created_at, :nombre, :descripcion)
 
 json.abordada @current_pirata.barcas.pluck(:id).include?(barca.id)
+json.eliminable barca.consensos.count.zero?
diff --git a/test/controllers/barcas_controller_test.rb b/test/controllers/barcas_controller_test.rb
index f03dac5..a4524e4 100644
--- a/test/controllers/barcas_controller_test.rb
+++ b/test/controllers/barcas_controller_test.rb
@@ -75,6 +75,16 @@ class BarcasControllerTest < ActionDispatch::IntegrationTest
     end
   end
 
+  test 'no se pueden eliminar si ya tienen consensos' do
+    barca = create :barca, piratas: [@pirata]
+    barca.consensos << create(:consenso)
+
+    delete barca_url(barca), as: :json, headers: @auth
+
+    assert_equal 422, @response.status
+    assert barca.reload
+  end
+
   test 'se pueden abandonar' do
     barca = create :barca, piratas: [@pirata]