{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

MAE 3241 Hmk 1(1)

# MAE 3241 Hmk 1(1) - MAE 3241 Aerodynamics and Flight...

This preview shows pages 1–2. Sign up to view the full content.

MAE 3241: Aerodynamics and Flight Mechanics Assigned: January 19, 2011 Homework #1 Due: January 31, 2011 Answer the following questions: 1. Estimate the Reynolds number at cruise conditions over the wing of the world’s largest commercial airplane, the Airbus A380 ( http://www.airbus.com/en/ ). Is the boundary layer laminar or turbulent? 2. Estimate the Reynolds number at the tip of the rotor blades on the Sikorsky Blackhawk helicopter ( www.sikorsky.com ) at sea-level conditions. Use a Reynolds number based on the chord of the rotor blade. 3. Explain how a helicopter flies forward. Complete the following problems from Fundamentals of Aerodynamics: 1.2, 1.3, 1.4, 1.5, 1.6, 1.9, 1.13 Answer the following question about wind tunnel testing of the Boeing 787: Boeing is interested in developing an enhanced cargo capacity version of their new 787 commercial airplane ( http://www.boeing.com/commercial/787family/index.html ). The new version will fly at a Mach number of 0.8 at an altitude of 10 km. The vehicle has a wing chord of 10 meters. A few pictures of the 787 are shown below for reference:

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern