shawon

This page lists questions and answers that were posted by visitors named shawon.

Questions

The following questions were asked by visitors named shawon.

If the ground beneath the aircraft is situated 6,000 ft above sea level, what is the height of the aircraft in feet?
2 years ago
Some aircraft are capable of flying upside down. Suppose that an aircraft cruises upside down, then what it its load factor?
2 years ago
An aircraft component has an ultimate load of 5.28 kN and a limit load of 1.32 kN. What is its safety factor?
2 years ago
An aircraft component has an ultimate load of 5.28 kN and a limit load of 1.32 kN. What is its safety factor? Based on this safety factor, do you think it was designed using a fail-safe philosophy or a safe-life philosophy?
2 years ago
A young engineer has come up with a 'brilliant idea': an aircraft with a square fuselage for more space. Since all aircraft have a circular fuselage cross section you suspect there must be a downside to this plan and you suspect it has to do with stress i...
2 years ago
Early aircraft used wing warping to bank, modern aircraft use ailerons. Why don't modern aircraft use wing warping?
2 years ago
Modern aircraft usually have two sets of ailerons: one 'inboard aileron' (close to the fuselage) and one 'outboard aileron' (further up the wing). Why is this?
2 years ago
Suppose the pilot of a conventional aircraft decides to increase the thrust of this aircraft, but wants to keep the pitch angle (and angle of attack) the same. What kind of elevator deflection should he give to prevent his aircraft from pitching: a positi...
2 years ago
Below you see a picture of a mass m attached to a spring. By what kind of stability is this system characterised?
2 years ago
Consider a statically stable aircraft in the yaw direction. What direction will the aircraft straight away yaw to after the pilot releases his left foot rudder pedal?
2 years ago

Answers

The following answers were posted by visitors named shawon.

An aircraft flies at an altitude of 32,000 ft.If the ground beneath the aircraft is situated 6,000 ft above sea level, what is the height of the aircraft in feet?
2 years ago
QNH-QFE= 32000ft-6000ft =26000ft AIRCRAFT altitude = from sea level including airport ground hight
2 years ago
The course of an aircraft with respect to the true North is 120, its course with respect to the magnetic North is 122. Determine the magnetic variation at this location (in degrees).
2 years ago
-1
2 years ago
-1 because n=l/w here l=-w
2 years ago
An aircraft component has an ultimate load of 5.28 kN and a limit load of 1.32 kN. What is its safety factor? Based on this safety factor, do you think it was designed using a fail-safe philosophy or a safe-life philosophy?
2 years ago
Safe-life philosophy
2 years ago
the circumferential stress in the fuselage skin 46.9 Megapascals the longitudinal stress in the fuselage skin is 23.45 Megapascals
2 years ago
young engineer has come up with a 'brilliant idea': an aircraft with a square fuselage for more space. Since all aircraft have a circular fuselage cross section you suspect there must be a downside to this plan and you suspect it has to do with stress in...
2 years ago
3.2mm
2 years ago
So, we are now in the position to compute . The next parameter we need to know is the maximum allowable circular stress. We take into account the safety factor by setting . So now that we have the pressure difference, the radius (=half the diameter, so 2....
2 years ago
T=T_0+a(h_1-h_0) (p_1/P_=(t_24000/t_20000)^(-g/ar) 3.2 mm
2 years ago
Early wing structures were rather flexible and relatively easy to warp. Modern aluminium wings with wing boxes incorporated are very rigid (as they have to deal with high loads) and therefore ailerons are used for banking.
2 years ago
The two sets of ailerons are used for different flight speeds. The two sets of ailerons are used for different flight speeds, here is why: As you know, the moment caused by a force is given by M=Fr , where F is the force and r is the moment arm. At low sp...
2 years ago
o prevent the aircraft from pitching, the pilot should give a positive elevator deflection. n case the line of action of the engine thrust is below the aircraft centre of gravity and the thrust is increased, this will result in a nose-up pitching moment,...
2 years ago
Suppose an aircraft flies under an angle of attack of 5.6 degrees, and at a pitch angle of 8 degrees. Determine the climb angle of this aircraft, in degrees.
2 years ago
Suppose a passenger aircraft flies with a course of 80 degrees and a heading of 84 degrees (both according to the compass). Determine the angle of sideslip it then experiences.
2 years ago
negative
2 years ago
positive static stability. As soon as the mass m is brought away from the equilibrium position, the spring will pull the mass back to its original position.
2 years ago
Consider a statically stable aircraft in the yaw direction. What direction will the aircraft straight away yaw to after the pilot releases his left foot rudder pedal? positive or negative
2 years ago
The Positive yaw direction
2 years ago