Please show all work, for both parts!! a) Show that the trimmed static stability requirement ac > Icg is equivalent to the requirementthat dcm,cg/da < 0, where Cm,cg is the moment coefficient about the center of gravity. Assumethat lift increases with angle of attack. Relate dcm,cg/da to the static stability margin,SM = (xac-cg)/c, and the lift-curve slope, de₁/da. Note, do not assume thin airfoil theory.b) Calculate the trimmed static-stability margin of a NACA 4416 airfoil at c₁ = 0.5 using mfoil.Do this first with no flap and then again with a flap hinged at 80% chord, deflected 15° down.Include pressure coefficient plots and discuss the results.

Answered: Image /qna-images/answer/c8191d1b-91ff-466e-90ea-a0cf7a9b223a.jpg

Answered: a) Show that the trimmed static…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Find the following based on the graphs given (angle of attack: 6 degrees, Re: 3.01*10^6, chord length: 0.75m, velocity: 60 m/s, standard atmosphere):
1. ! SHOW COMPLETE SOLUTION ! *pls draw FBD *pls use data give properly : rate will be low if not explained properly Problem 1: The pulleys are frictionless and of negligible weight Find: 1.1 Tension (N) in the cord supporting block B. 1.2 Acceleration at Block A (m/s^2) 1.3 Acceleration at Block B (m/s^2) 1.4 Acceleration at Block C (m/s^2)
LR = 5m, LG = 2.5m and LC = 1.1m Q2. The Skylark family of sounding rockets consisted of a number of variants (denoted Skylark 5, Skylark 7, and Skylark 12 respectively). These are illustrated on Page 3. The data given below is based on that for the rocket motors they used (all manufactured and named by what was Royal Ordinance – now part of Roxel): Raven XI Motor Total mass: 1280 kg Length = LR See Case Table (units are m) Diameter = 0.44 m Goldfinch IIA Motor Total mass: 420 kg Length = LG See Case Table (units are m) Diameter = 0.44 m Cuckoo IV Motor Total mass: 242 kg Length = LC See Case Table (units are m) Diameter = 0.44 m The payload mass which is additional to the motor masses is to be taken as 100 kg. (a) For the configurations of the three rockets shown on Page 3 in Fig. Q2: (i) Determine the Pitching/Yawing moment of inertia of each rocket about the base of each rocket. (ii) Explain how you could then find the the Pitching/Yawing moment of inertia of each rocket about its…
Find the magnitude and direction of hydrostatic force acting on gate( use pressure diagram) and find the magnitude and the direction of force exerted on plate. Use kn.
i need the answer quickly
5.2 Consider the following aircraft flying in straight and level unaccelerated trimmed flight at M 0.2 at sea level. MAC 12 ft Xeg W Xcg 0.5cwing Macail Macit = -5000 ft lb = 0 ac wing T = 3000 lb W = 12,000 lb Ctail =4 ft bwing = 30 ft Cwing = 8 ft (a) Find the lift of the wing and the lift of the tail. Assume Lwing and Ltail act at the quarter chord points. (b) Find the aircraft drag. (c) Assuming a rectangular wing, what is the total aircraft C,? (d) What is the pitching moment coefficient for the entire aircraft?
= 3570 T AC =144 Example: 1.5 ft It is desired to determine the drag force at a given speed on a prototype sailboat hull. A model is placed in a test channel and three cables are used to align its bow on the channel centerline. For a given speed, the tension is 40 lb in cable AB and 60 lb in cable AE. Flow 4 ft Determine the drag force exerted on the hull and the tension in cable AC. Choc ug the h- as the free hod- DApress the
A vertical sliding gate is being submerged in a 10 meter water. The gate is 5m wide and 9 m high and weighs 50 kN. What vertical force is needed to just lift this gate considering that the Coefficient of friction between the guides and edges is 0.25 (Neglect Buoyant Force) Ans: 657 kN
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2. ! SHOW COMPLETE SOLUTION ! *pls draw FBD *pls use data give properly : rate will be low if not explained properly Problem 2: The pulleys are frictionless and of negligible weight Find: 2.1 Tension (N) in the cord supporting block C. 2.2 Acceleration at Block A (m/s^2) 2.3 Acceleration at Block B (m/s^2) 2.4 Acceleration at Block C (m/s^2)

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