Alcohol rocket nozzle
thingiverse
Unas toberas para los típicos cohetes que se hacen con una botella y alcohol, he hecho varios modelos para optimizar la salida de gases y he conseguido el doble de empuje que con el tapón con agujero. El mejor resultado lo he conseguido con la Nº4 pero me imagino que depende de la botella y de la presión atmosférica irán mejor otras. Some nozzles for the typical rockets that are made with a bottle and alcohol, I have made several models to optimize the exhaust and I have achieved twice as much thrust as with the hole cap. The best result I have achieved with the No. 4 but I suppose it depends on the bottle and the atmospheric pressure, others will go better.
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