M3 Putting it All Together
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Embry-Riddle Aeronautical University *
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Course
123
Subject
Industrial Engineering
Date
Jan 9, 2024
Type
docx
Pages
3
Uploaded by ChiefRaccoon1263
Module 3
Putting it All Together - Aircraft Design and Performance
Initial Post
Begin by doing some online research and reading on each of these specific fixed-wing aircraft:
Crop dusting plane
Heavy lift/transport plane
Fighter jet
High altitude surveillance jet
Then, select
one
of the aircraft types for the topic of your initial post. Develop a structured and
engaging initial post that covers each of the following requirements:
Describe the mission of the aircraft, i.e., what is it required to do in flight?
Discuss how the aircraft performance characteristics of the aircraft allow it to meet its
mission requirements, tying the concepts of motion, forces, and aircraft performance
as presented in this module.
Embed at least one graphic or video that helps visualize some aspect of your initial post
discussion.
To embed a YouTube video, simply paste the video URL into your post.
Good evening class,
I decided to make my post about Crop dusting planes.
Below are the answers to the questions
that were to be addressed.
Also the link to see a crop duster at work is in my references provided
or you can just click
https://www.youtube.com/watch?v=S7cuk9cwujo
.
Image from (Ethredge, & Growing America, 2018)
Describe the mission of the aircraft, i.e., what is it required to do in flight?
o
The mission of a crop duster plane is to pesticides over large acers of crops.
TO
be precise a crop duster plane, “Is a specially equipped aircraft that fly low over
fields or forests to spray crops and trees with chemicals that can include"
herbicides and pesticides that are designed to control weeds or destroy bugs”
(Kerr, Para 3).
Discuss how the aircraft performance characteristics of the aircraft allow it to meet its
mission requirements, tying the concepts of motion, forces, and aircraft performance
as presented in this module.
o
“Crop dusters can fly as low as eight to twelve feet above crops while being able
to reach speeds of 150 miles per hour (MPH)” (
Ethredge, & Growing America,
Para 5)
.
They need to fly as low as possible while spraying crops in order to
reduce drift from the chemicals.
Most also have a larger wingspan. The duster
can spray, but in order to do this the pilot needs to take into account the four
forces that play a key roll in flight and they are thrust, lift, drag and weight.
Weight is the force caused by gravity and the pilot needs to make accurate
calculations because a crop duster plane can hold up to 1000 gallons and if
not calculated by the pilot it can be catastrophic. If the weight is
miscalculated it may need more runway to take off, it can reduce glide,
reduce performance and increase load factor on maneuvers when the
aircraft is trying to complete its task. This takes a toll on the lift of the
aircraft.
Lift is the force that holds the plane in the air.
Because the aircraft is
flying so low and weight is a factor.
Most crop-dusting planes have a
larger wingspan because a larger wing span provides better lift and a wider
spray spread.
Thrust moves an aircraft in the direction of the motion. It is used to
overcome drag and since the aircraft fly low this causes a lot of drag and
another way this is countered is by having an aircraft that provides
maximum thrust.
Most crop dusters are single engine prop plane that can
have horse power anywhere from 260-800.
That allows the aircraft to
generate a lot of thrust to get the aircraft moving and assist in the drag that
is being generated.
Drag is the force that acts opposite to the direction of motion.
The lower
an aircraft fly the more drag is produces.
All that was stated above is to
assist in the reduction of drag on the crop duster plane.
Reference
Ethredge, R., & Growing America. (2018, October 17).
Crop-Dusting Is Not for The Faint of
Heart
. Growingamerica.com. Retrieved from
https://www.growingamerica.com/features/2018/10/crop-dusting-not-faint-
heart#:~:text=Modern%20planes%20hold%20up%20to,continue%20when%20refilled
%20with%20spray.
Kerr, M. (2017, November 21).
Job description of an aerial crop duster
. Work. Retrieved from
https://work.chron.com/job-description-aerial-crop-duster-20474.html
RamblinAround. (2011, May 13).
Crop dusting plane at work
. YouTube. Retrieved from
https://www.youtube.com/watch?v=S7cuk9cwujo
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