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Name: dee
Status: educator
Age: 40s
Location: N/A
Country: N/A
Date: 1999
Question:
If a jet in the air increases its speed, does the downward force of air on the top of the wings increase or decrease? Does the net lifting force of the air on the wings increase or decrease?

Replies:
The downward force decreases, and the net lifting force increases.

Tim Mooney

Increase... if all else remains the same.

Reading more about Bernoulli's principle would help understand this.

Larry Krengel

Hi,

I guess increasing the speed will lift the jet up. My reasoning is that before the increase there is some uplift force that balances the weight of the jet, keep it level. The uplift force is directly related to velocity. If speed is increased, the uplift force is increased.

AK

Dr. Ali Khounsary
Advanced Photon Source
Argonne National Laboratory


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