Yes. Some create more lift than the others. Glider paper planes have more lift due to big wings. Paper planes like Classic dart fly faster but for less amount of time.
awd
Some top hats are higher than the others because of the different designs employed.
In which all his designs something is common which make him different from others
Well make it very colorful with alot of pictures and designs make it different from others
Amir Khusru wanted to create something different to others
bird
bird
1) travel long distances 2) hold cargo 3) rescue teams
You could do a focus wall where one wall is a different color than the others. That always looks great. You can also create designs using painter's tape as a stencil. I recommend visit to your local paint store, Home Depot, or Lowe's to see what tools they have for different techniques.
There are many vendors of Quoizel lamps and they come in many different colors and designs. You can find them on websites like "www.quoizellamps.org" and many others.
Airplane
How can you financially make something and what is a commercial airplane? If you are talking about manufacturing companies, there is Boeing, Airbus, Bombardier, Embraer, Sukhoi, Hawker Beachcraft, Cessna, Gulfstreams, and many others. They all make airplanes that are used for commercial purposes and do create financial profit if this answers your question...
The importance behind the three different types is that some types can withstand a higher amount of stress than others. However, there are many different types of stress and airplane has to withhold.