Regarding thrust-producing engines, discuss the dilemma between performance versus efficiency, referencing the propulsion effici - Essay Example

Comments (1) Cite this document
Performance Assignment Author Institution Aim This assignment will discuss performance, efficiency and the effect of engine designs on these characteristics. Performance and Efficiency Performance refers to the overall characteristics of an aircraft including straight and level flight, climb and range (Dole and Lewis, 2000)…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER98.5% of users find it useful
Regarding thrust-producing engines, discuss the dilemma between performance versus efficiency, referencing the propulsion effici
Read TextPreview

Extract of sample
"Regarding thrust-producing engines, discuss the dilemma between performance versus efficiency, referencing the propulsion effici"

Important factors are the thrust to weight ratio of the engine, fuel consumption and the aerodynamic characteristics of the aircraft (Dole and Lewis, 2000). Overall engine efficiency is cycle efficiency x propulsion efficiency (Hunecke, 2010). Propulsion efficiency (np) = 2/(1+c/v) where c is exhaust speed and v is aircraft speed. Thus, maximum efficiency is achieved in a balanced equation. Looking at the equation, at takeoff, c exceeds v and thus np is low and as V increases np will increase however, to extend endurance, c is reduced (power reduction), once again affecting efficiency. In considering overall efficiency, propulsion efficiency must also be considered in relation the aircraft itself. One such method is the Oswald efficiency factor (FAA, 2001) whereby: CD = CD0 + (CL)2/ e AR where: CD is the overall drag coefficient, CD0 is the zero-lift drag coefficient, CL is the aircraft lift coefficient, is the aircraft circumference-to-diameter ratio e is the Oswald efficiency number, and AR is the aspect ratio. (FAA, 2001). From this equation in conjunction with the propulsion equation can be seen the multiplicity of factors that affect efficiency. The dilemma in performance versus efficiency arises from both design and operating environment. For example, a fighter jet may have low efficiency (a high SFC) however, the aircraft performance is high. Read More
Cite this document
  • APA
  • MLA
(“Regarding thrust-producing engines, discuss the dilemma between Essay”, n.d.)
Retrieved from https://studentshare.org/other/1428183-regarding-thrust-producing-engines-discuss-the
(Regarding Thrust-Producing Engines, Discuss the Dilemma Between Essay)
“Regarding Thrust-Producing Engines, Discuss the Dilemma Between Essay”, n.d. https://studentshare.org/other/1428183-regarding-thrust-producing-engines-discuss-the.
  • Cited: 0 times
Comments (1)
Click to create a comment or rate a document
mpowlowski added comment 7 months ago
Student rated this paper as
This document saved me today. I liked the content. It was very useful for my other course.
Team Work, Group Efficiency and Performance
The paper tells that today’s organizations are changing and adapting to the changing dynamic external environment. One of the most important adaptations of organizations is development of a team-based organizational structure. The traditional horizontal hierarchical structure is now being replaced by a team based structure where in organizations has numerous teams working with no more than 10 members.
11 Pages(2750 words)Essay
Discuss the relationship between ICAO and national aviation authorities. How does this relationship contribute to safety, economy and efficiency
Taking into consideration the inherent link between the basic considerations of humanity and aviation safety, the commitment to oversee safety has arguably acquired an interesting character, with all states having, in its observance, a legal
5 Pages(1250 words)Essay
Improving Performance Efficiency Among SMEs Via Accrual Accounting Systems
Given the space that SMEs occupying within developed economies and their importance therein studying the methods by which these enterprises can utilise IT tools to maximise organisational efficiency and effectiveness, and enhance organisational performance, is extremely crucial.
10 Pages(2500 words)Essay
The third and most important strength is a discourse analysis of the two kinds of scholarships and why need-based scholarships should replace merit-based scholarships. However, these strengths are overshadowed by numerous weaknesses such a
2 Pages(500 words)Essay
Live Performance versus Studio Recordings
There is a multitude of ways that live and studio recordings differ. One considers that the very nature of the recording space is the most noticeable aspect. This difference, however, extends into the very
2 Pages(500 words)Essay
Capital Market Theories Market Efficiency Versus Investor Prospects
The reforms specified under the Sarbanes-Oxley act mandates the practices specified above. These practices have for long been considered to be crucial factors of a robust corporate governance framework. The act stressed the
10 Pages(2500 words)Essay
Effective writers strive to distinguish their ideas from those of other people. To achieve this distinction between ideas, references come in handy. When a writer references, he or she differentiates his/her ideas from those of other
3 Pages(750 words)Essay
Analysis/design of ducted-fan propulsion system with thrust vectoring capability
s or fighter without ducted system as they provide fool proof safety to the passengers and are observed to provide least damage to the plane and passenger in case of emergency situations. Ducted fans have now found enormous applications in the field of avionics due to their low
12 Pages(3000 words)Research Paper
5, The Manchester Crane Survey 2014 | Deloitte UK, [online] Available at: http://www2.deloitte.com/uk/en/pages/regions/articles/manchester-crane-survey.html [Accessed 4 Mar. 2015]. Deloitte United Kingdom, 2015, UK Real Estate Predictions 2015 | Deloitte UK, [online] Available
1 Pages(250 words)Essay
Critically Discuss the Relation Between Emotional Intelligence And Employee Performance
According to the report the employees therefore appreciate jobs which ask of them to stay at office for longer periods of time and thus work late, even in the night hours. What is even more interesting is the fact that they come back to work sooner than others.
8 Pages(2000 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Regarding thrust-producing engines, discuss the dilemma between performance versus efficiency, referencing the propulsion effici for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us