Question

A Boeing 747-8I aircraft has a mass of 447,700 kg. This includes
loading. The combined area of both wings is 554 m2. The cruise
speed is M0.855 (917km/h). Determine the speed of the wind above
the wing to maintain the aircraft's lift. The air density is 1.29
kg/m3.

Answer #1

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A Boeing 747-8I aircraft has a mass of 447,700 kg. This includes loading. The combined area of both wings is 554 m2. The cruising speed is M0.855 (917 km / h). Determine the speed of the wind above the wing to maintain the aircraft's lift. The air density is 1.29 kg / m3

An airplane has two wings, each with area 5.00 m2, designed so
that air flows over the top of the wing at 240 m/s and underneath
the wing at 220 m/s. What is the mass of the airplane such that the
lift on the plane will support its weight, in 103 kg?. Note. Assume
the force from the pressure difference across the wings is directed
straight upward. Density of air is 1.29 kg/m3.

A small jet airplane has a total wing area of 67.5 m2
and a mass of 8.03 104 kg.
(a) If this jet is in horizontal flight, determine the pressure
difference between the lower and upper surfaces of the wings. in Pa
?
(b) When the speed of air traveling over the wing is 247 m/s,
determine the speed of air under the wing. Use 1.29
kg/m3 as the density of air. in m/s ?
(c) Which answer is correct...

A frequently quoted rule of thumb in aircraft design is that
wings should produce about 1000 N of lift per square meter of wing.
(The fact that a wing has a top and bottom surface does not double
its area.)
a)At takeoff the aircraft travels at 63.0 m/s, so that the air
speed relative to the bottom of the wing is 63.0 m/s. Given the sea
level density of air to be 1.29 kg/m3, how fast (in m/s)
must it...

A cargo plane has two wings and each wing has an area of 34.15
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same as the speed of the plane, what is the minimum speed of the
plane v1 to obtain enough lift...

An airplane has a mass of 48,000 kg, a wing area
of 300 m2, a maximum lift coefficient of 3.2, and a cruising
drag coefficient of 0.03 at an altitude of 12,000 m. Determine(a)
the takeoff speed at sea level, assuming it is 20 percent
over the stall speed, and (b) the thrust that the engines
must
deliver for a cruising speed of 900 km/h.

A bicycle rider has a drag area of 0.22 m2. She is riding at a
velocity of 8.3 m/s along the road and the air density is 1.2
kg/m3. Total mass of the rider and bike is 93 kg. The coefficient
of rolling resistance is 0.004. She is riding into a headwind with
velocity 1.8 m/s. The road is horizontal. What power (watts) must
the cyclist produce to maintain the speed of 8.3 m/s?

A skydiver of mass m = 70 kg, which includes the mass of all the
equipment she is wearing (helmet, parachute, etc.), jumps from an
airplane at high altitude. The density of the air is ρ = 1.22 kg/m3
.
(a) Estimate a numerical value for the terminal speed of the
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The Boeing Company, headquartered in Chicago, Illinois, is one
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other major producer is European Airbus. Boeing produces three
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I ONLY NEED ANSWERS TO F.) AND G.)
I SOLVED THE REST. THANK YOU!
The Boeing 747 has a cruising altitude of 45,000 feet and
cruising speed of 275 m/s. At this elevation, the temperature and
pressure according to the US Standard Atmosphere (air properties as
a function of altitude) are 220K and 1.8x104 Pa, respectively. The
engines are steady state devices that can be modeled using the 1st
Law of Thermodynamics with air (ideal gas) as the working fluid...

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