Hi I have purchased the Twin Otter Extended for FSX.

When i load the Amphib aircraft, after a few seconds it automatically starts the engines and starts to move on the water.

Is there any way to disable this auto start??

I have tried to load the aircraft, then shutdown the engines and switch off all power (Cold Dark Start), the safe the flight, but when i reload that flight it still auto starts !! Can I disable this feature.

Do you have some hardware connected to the simulator ? 

If yes, please disconnect them all,  load the plane again and check if it still starts with engines running.

I have disconnected everything exept keyboard and mouse, still have same problem