I have Aerofly RC10 and RC9 and discovered that the Obsession model plane has a problem with the flaps. They are half way down when you use this model. You can use the F key to operate them. They will go down two steps by using the F key twice and a third press of the F key will bring the flaps back the half flap position that it starts with.
Could anyone that usesRC9 or RC10 try the Obsession Model and let me know when you select the Obsession, are your flaps half down to start with and will not go up all the way?