Hi,
Here are two questions about the popular duster airplane: air tractor.
1. Why spaying pipe line under the wing (as shown in attached figure at the right side) is even shorter than the wing span? Intuitively people would think if the airplane has a larger spraying bandwidth, it will have higher spraying efficiency. For example, if an air tractor flies 1000 meters with spraying bandwidth of 15 meters, it will cover 15000 square meters area. If it has bandwidth of 18 meters, it will cover 18000 square meters area. Why air tractor was not designed to have longer spraying pipe line thus larger spraying bandwidth? What are the factors limiting that?
2. There is a cable line on air tractor (looks connecting fuselage top and vertical tail tip). It is clearly shown in attached figure at the left side. What is that used for?
Here are two questions about the popular duster airplane: air tractor.
1. Why spaying pipe line under the wing (as shown in attached figure at the right side) is even shorter than the wing span? Intuitively people would think if the airplane has a larger spraying bandwidth, it will have higher spraying efficiency. For example, if an air tractor flies 1000 meters with spraying bandwidth of 15 meters, it will cover 15000 square meters area. If it has bandwidth of 18 meters, it will cover 18000 square meters area. Why air tractor was not designed to have longer spraying pipe line thus larger spraying bandwidth? What are the factors limiting that?
2. There is a cable line on air tractor (looks connecting fuselage top and vertical tail tip). It is clearly shown in attached figure at the left side. What is that used for?
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