diff --git a/lib_copter/entities.lua b/lib_copter/entities.lua
index 64d86de..8b22364 100644
--- a/lib_copter/entities.lua
+++ b/lib_copter/entities.lua
@@ -321,7 +321,7 @@ function airutils.logic_heli(self)
     if self._engine_running == false then fixed_power = 0 end
     local power_indicator_angle = airutils.get_gauge_angle(fixed_power/10) + 90
     local fuel_in_percent = (self._energy * 1)/self._max_fuel
-    local energy_indicator_angle = (180*fuel_in_percent)-180    --(airutils.get_gauge_angle((self._max_fuel - self._energy)*2)) - 90
+    local energy_indicator_angle = (180*fuel_in_percent)-180
 
     if is_attached then
         if self._show_hud then
diff --git a/lib_planes/fuel_management.lua b/lib_planes/fuel_management.lua
index 7b45df1..3ae7a5c 100755
--- a/lib_planes/fuel_management.lua
+++ b/lib_planes/fuel_management.lua
@@ -40,7 +40,14 @@ function airutils.consumptionCalc(self, accel)
     if self._energy > 0 and self._engine_running and accel ~= nil then
         local divisor = 700000
         if self._fuel_consumption_divisor then divisor = self._fuel_consumption_divisor end
-        local consumed_power = self._power_lever/divisor
+        local consumed_power = 0
+        if self._rotor_speed then
+            --is an helicopter
+            consumed_power = 50/divisor --fixed rpm
+        else
+            --is a normal plane
+            consumed_power = self._power_lever/divisor
+        end
         --minetest.chat_send_all('consumed: '.. consumed_power)
         self._energy = self._energy - consumed_power;