Big Model Helicopter being flown indoors in Germany. Modeled as a ambulance or rescue helicopter the size of the model is fairly large. Therefore the engine to drive this model must also be quite large. As these models become larger and larger, Model making enthusiast can look forward for the day when they could make models that could be used to lift weights and also to ferry goods over distances. CCET the place for Young people to study. Come Join! Tell others too.