Question 66 – The drag coefficient Cd = 0.05 and lift coefficient Cl = 0.4

Question 66 – The drag coefficient Cd = 0.05 and lift coefficient Cl = 0.4 for a levelled flow aircraft are measured. The velocity of the aircraft is v = 150 ft / s with its weight W = 2677.5 pound-force. (a) Find the value of the lift of the aircraft, L, when it is also its weight. (b) The drag of the aircraft, D = Cd M, L = Cl M. Find the value of D. (c) The power required is P = Dv. If 1 pound-force x (ft / s) = 1.356 W, find the value of P in the unit of Watt or W.

Question Posted / kang chuen tat (malaysia - pen

1 Answers
2579 Views
I also Faced
E-Mail Answers

Question 66 – The drag coefficient Cd = 0.05 and lift coefficient Cl = 0.4 for a levelled flow..

Answer / kang chuen tat (malaysia - pen

Answer 66 – (a) L = W = 2677.5 pound-force. (b) D / L = Cd / Cl, then D = (Cd / Cl) L = (0.05 / 0.4) (2677.5) = 334.6875 pound-force. (c) P = Dv = 334.6875 (150) (1.356) = 68075.4375 W, where D has a unit of pound-force and v has a unit of ft / s.The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Chemical Engineering Interview Questions

How can one determine if a particular solid can be fluidized as in a fluidized bed?

0 Answers

How i can calculate heat transfer in reactor at unsteady state and what data should i have? I want equation and process to calculate it? As there is steam or brine in jacket

0 Answers

How to TDS removed found in lab apparatus.

1 Answers

can we apply Bernoulli theorem for liquid?

1 Answers

distance education chemical engineer degree aprooved courses any?

1 Answers

Is there any way to remove residual product left in pipes after a batch operation?

0 Answers

if i added hypo before DM plant so i will affect my resins of anion or cation. if affect it so do prevent what kind of step should be taken to remove hypo before DM inlet?

0 Answers Hindustan Unilever Limited,

What are some typical applications for glass-lined reactors?

0 Answers

What is a good source of equations for calculating discharge flowrates from accidental releases?

0 Answers

Why does catalytic converter used in an automobile?

0 Answers

What are the different characteristics that can affect the flow of bulk solids and how?

0 Answers

After conducting an internet search for ways to reduce energy costs, I found a recipe for whitewashing that is said to reflect sunlight. The recipe calls for 20 pounds hydrated lime to 5 gallons water to 1-quart polyvinyl acetate. What is a good source of polyvinyl acetate that I can buy at a local store?

0 Answers

For more Chemical Engineering Interview Questions Click Here