|Learn To Fly Model Helicopters|
If possible ask an experienced member in your club to test fly your model, this way you will know that the model set up is okay for aerobatics and if you have a flight simulator practise on that first.
Before you attempt any of the following manoeuvres you need to get used to flying at a considerable height, high enough so that if things go wrong you will have time to correct it but low enough to see what is going on. It's a difficult balance but I know from experience that the ground seems to come up very quickly when you make a mistake.
You will be able to gradually reduce height as you become more proficient at each manoeuvre.
Start with the model flying at a safe height, into wind and with plenty of forward speed. When the model is passing in front of you apply up elevator (back cyclic) to start the climb into the loop, (not to much up elevator or the model will come to a stop) as the model reaches the inverted section pull a little more up elevator and keep it there until it gets to the bottom of the loop. Your first loops will probably be more like a figure 9 but if you lower the collective pitch to negative at the top of the loop you will gradually make the loop more circular.
Again with plenty of height and forward speed apply full right or left cyclic, as soon as the model starts to roll apply 0 degrees pitch followed by negative pitch at the inverted section followed by 0 degrees and then back to normal. The timing of the pitch inputs are critical and your first rolls will probably be more like a barrel roll but just keep practising.
Most other aerobatic manoeuvres are really just combinations of the above so I will not go through them.
Its not getting the manoeuvres right every time that's important, its regaining control when it all goes wrong that really matters.