how to make ethanol rocket # simple home made rocket

it is simple rocket made by ethanol as the working fuel ,it goes around 200 feet height
innovations tech lab
items required
1. 4 inch pvc pipe of 3 feet
2. 0.5inch pvc pipe of length 1 meter
3. an old mosquito bat circuit
4. ethanol
5. some aluminium L channel

innovations tech lab,