Logo
Home Study Material Contact Search
AI Chat FREE
  1. engineering
  2. mechanical engineering
  3. the helicopter shown in the figure below has a mas

The helicopter shown in the figure below has a mass of 12 tons and it needs...

90.2K

Verified Solution

Question

Mechanical Engineering

The helicopter shown in the figure below has a mass of 12 tonsand it needs to rotate its 14 meter blades (diameter of the blades= 14 meters) at 670 rpm just to hover (stand still in mid air)without any additional load. The air flow caused by the rotation ofthe helicopter blades may be modeled as a moving cylindrical bodyof air having a 14 meter diameter. The average velocity of theairflow of that cylindrical air-body is proportional to therotational speed of the helicopter blades (RPM).
Determine the airflow rate when the helicopter hovers and the powerthat its engines produce.
If the helicopter is now loaded with an 8 tons load as shown in thefigure. Determine again the airflow rate when the helicopter hoversand the power that its engines produce.

Answer & Explanation Solved by verified expert
3.8 Ratings (641 Votes)
Assumptions1 The flow of air is steady and incompressible2 Air leaves the blades at a uniform velocity at atmosphericpressure3    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Mechanical Engineering
1.2K views

what is the definition of factor safety, and what does it mean to have a higher...

Economics
1.2K views

According to the Stolper-Samuelson theorem, would you expect capital owners across the globe to favor tariffs...

Biology
1.2K views

The loudness of a sound is determined by what property of a sound wave?FrequencyWavelengthVelocity or...

Physics
1.2K views

Q 2 Ms Usha a science teacher performed the following experiments Experiment 1 She heated...

Basic Math
1.2K views

Let U 9 10 11 12 13 14 15 A 9 10 11 12 B...

Basic Math
1.2K views

Select the correct answer.The Richter scale measures the magnitude, M, of an earthquake as a...

Calculus
1.2K views

Determine the values of x for which the function as represented by the graph to...

Calculus
1.2K views

Match the graph with the appropriate function H 2 2 2 y f x x...

Algebra
1.2K views

g x 7 Drag the sets into the boxes to identify the domain and range...

Accounting
1.2K views

Bond Discount, Entries for Bonds Payable Transactions the bonds is nayabie semiannually on Decernber 31...

Accounting
1.2K views

Margot's Ice Cream operates several stores in a major metropolitan city and its suburbs. Its...

Finance
1.2K views

Green Penguin Pencil Company has a total asset turnover ratio of 4.00, net annual sales...