You must check the altitude before you perform a chandelle. Determine whether the altitude is above 1,500 feet or not as it is per the FAA regulations. Anything under this height is not acceptable as it may be dangerous.
Check traffic and speed
One of the most important things to take notice is the speed of the aircraft and the traffic around. You must not exceed the maximum speed of the aircraft as that can be dangerous considering weight changes with speed. It is also crucial that you check the traffic around your aircraft before you perform the chandelle. Check the traffic above and below your aircraft as it can be extremely dangerous to perform the chandelle if you ignore this fact.
You need to pick a reference line that has to be parallel to wind when you perform the chandelle. When you cross the reference line, start the chandelle. You have to bank on the wind to start the turn and make sure the turn is not more than 30 degrees.
Start the climbing manoeuvre
You must apply the elevator pressure to start the climbing manoeuvre. Apply constant speed and to climb when making the turn. It is good to apply full power if you have a fixed pitch propeller and increase RPM to takeoff in case of a constant speed propeller.
Return to cruise speed
Start rolling at a constant rate and maintain a constant speed until you reach your desired level. After that, return to cruise speed.