Ever wondered why Fans in India have 3 blades while Fans in USA have 4 blades attached to its axis? Well there is a logical reason behind this count.
In USA:
The fact that the country is not so hot on average temperature range. Most of the houses use air conditners to maintain room temperature. The airconditioner may be at a corner of the house which needs a proper circulation and equal dispersion of the air. This equal dispersion can be achieved by something mild yet powerful. A fan in US is designed to move a large mass of air throughout the area and hence a slow yet powerful 4 bladed fan is used.
Three blade concept of India:
In India, a three blade fan is used. Generally, a higher average temperature is observed throghtout the country. Not all house have an air conditioning system. Hence, a lighter, faster and air efficient fan is used in India. These traits can be observed by a three blade fans which have had been very successful in India. However, some houses have 4 bladed fans as a ‘Home Decor’ item.
Interesting, right?