Then what is happening is an incipient spin. It can go either way, but depending on how straight the plane is it will tend to go one way more than the other. Once the attitude you want is established you have to increase power and control with rudder and elevator to maintain that attitude. (Vectored slipstream). Whether the model will climb or or descend will depend on the weight, control authority available, cg, wing A.R. etc. and the power available. Light, high powered models with large surfaces and movements can do this, others can't. Aileron use will probably result in that spin. Guess you are just going to have to go out and practise a lot...
Evan.