Airplane Definition and 354 Threads

Homework Statement You are flying in a light airplane spotting traffic for a radio station. Your flight carries you due east above a highway. Landmarks below tell you that your speed is 52.0 m/s relative to the ground and your air speed indicator also reads 52.0 m/s. However, the nose of your...

Homework Statement Airplane flies over route in shape of triangle ABCD. Time(t1, t2, t3) of flying over sections AB, BC, CA are known. Lenght of sections is also known. During fly wind is present. velocity of wind is constant, and speed of airplane relative to wind is also constant. Find...

Homework Statement An airplane flying 914 m above the ocean at 116 km/hr is supposed to drop a box of emergency supplies to the survivors of a shipwreck on an island. At what final speed will the supplies land on the island? Homework Equations The Attempt at a Solution So Vx =...

hi I wonder if anyone can help me to tell any sort of website about how a plane flies? thanks

Homework Statement A jet flies with an airspeed of 310 mph due east (assuming +x is due east). It is climbing vertically with a velocity of 50 mph. A wind blowing toward northeast has a speed of 55 mph. Homework Equations Find the x,y,z components of the plane's velocity relative to...

Homework Statement an air plane flied with a velocity of 750 kilometers per hour, 30 degrees south of east. what is the magnitude of the eastward component of the planes velocity? Homework Equations im not sure which equation is correct 750 sin 30 degrees or 750 cos 30 degrees The Attempt...

Homework Statement If the engine thrust is F(T)=130kN and the plane's weight is W=180kN,determine the atmospheric drag F(D) and the wing lift F(L). What is the distance s to the line of action of the drag force? The Attempt at a Solution Well I have trouble with this question...

Homework Statement Calculate the position (distance) and velocity of the plane at 5 equal time intervals based on constant acceleration until the takeoff point. The 5th point should be the takeoff point. Calculate the abort point, if the plane needs to make a sudden stop. Determine the distance...

Homework Statement A plane flies at an airspeed of 250 km/h. A wind is blowing at 80km/h in the direction 60 degrees east of north. In what direction should the head in order to fly due north. Homework Equations I turned the wind into a vector assuming that the wind is blowing 30...

Homework Statement Consider an airplane of wing area 29 m^2 (both wings combined) flying through air of density0.549 kg/m^3 . From the plane’s point of view, the air flowing above the plane’s wings has speed 178 m/s , but the air flowing below the wings has speed 140 m/s . What is the net...

Homework Statement An airplane flying North at 119.7 m/s encounters a 46.8 m/s tailwind. If the plane's destination is 573 km due North, what will its travel time be? Homework Equations The Attempt at a Solution I added the two velocities: 166.5 m/s. Then divided that by 573000...

Homework Statement An airplane, whose air speed is 580 km/h, is supposed to fly in a straight path 38 degrees N of E. But a steady 72 km/h wind is blowing from the North. In what direction should the plane head? Relevant Equations Pythagorean theorem Law of sines Attempt at a...

The airplane shown is in level flight at an altitude of 0.50 km and a speed of 150 km/h. At what distance d should it release a heavy bomb to hit the target X? -I tried using x-x0=(v0)(cos(theta))t; and then solving for t with another equation but that does not give me the correct answer...

Homework Statement a small airplane flies at a max airspeed of 255km/hr. (velocity relative to air). The wind is blwoing from the north at 63km/hr. The pilot heads this plane at a heading 41degrees south of straight east. a) what is the planes groundspeed (the velocity that the plane will...

Homework Statement An airplane maintains a heading due west at an air speed of 900km/h. it is flying through a hurricane with winds of 300km/h, from the northeast. a.in which direction is the plane movie relative to the ground b.what is the planes ground speed? c. how long would it take the...

Homework Statement an 85 kg man plans to tow a 109000 kg airplane along a runway by pulling on a cable attached to it at an angle 9 above the horizontal. the coefficient of static friction between his between his shoes and the runway is 0.77. what is the greatest acceleration that the man...

Homework Statement A 78.4-kg airplane pilot pulls out of a dive by following, at a constant speed of 162 km/h, the arc of a circle whose radius is 321.0 m. At the bottom of the circle, he is accelerating at 6.31 m/s upwards. What is the force exerted on the pilot by the airplane seat...

Homework Statement length of runway for airplane 1.5miles, accelerate at 3.0m/s^2 decelerate at 2.1m/s What length of time is available from the start of the motion to decide on a course of action (take off or abort) Homework Equations d=a*t 3.0m/s/-2.1m/s The Attempt at a Solution...

Homework Statement An airplane is flying in a horizontal circle at a speed of 460 km/h (Fig. 6-42). If its wings are tilted at angle θ = 37° to the horizontal, what is the radius of the circle in which the plane is flying? Assume that the required force is provided entirely by an...

Homework Statement A 1150kg airplane starts from rest and accelerates forward for 7.3 seconds until it reaches its takeoff speed of 31m/s. What is the average force on the airplane during this time? I tried F= ma, but I get a number that is far too large. F= 1150kg times (31/7.3) = 4883.6N I...

An airplane travels at a constant speed v for a distance of 3000km as measured by a stationary observer. The pilot measures the flight time to be \Delta t and the stationary observer measures the flight time to be \Delta t'. (Then I solved the first part of it, showing that \Delta t' > \Delta...

Posted this in the coursework forum as well but it doesn't appear any aerospace engineer visits that one :-) I'm supposed to help someone with this for his essay but I don't completely understand it myself. I understand how a pitot tube measures the total pressure, and how a static pressure...

Homework Statement Ok, an airplane weighs 6,000 (think of the airplane as a triangle) and one of the back two wheels is stationary and acts as a pivot. The airplane is on the ground. How fast does the wind need to be blowing to push the front wheel 90 degrees from the original location...

I am having trouble with a simple Physics problem. It's example 4 the link to the problem is here: http://img198.imageshack.us/img198/8554/questionf.jpg I can see that tan is side opposite/ side adjacent and I see how that calculates to 4.818, but where does the value of 78.3 degrees come from...

Hey PF, Last time I landed on an airplane my ears hurt unbearably, and it lasted hours. I had tried yawning, swallowing, drinking, chewing gums, and the valsalva maneuver. After I got on the ground I purchased a milky way bar, ate that, and then ate a hot dog, french fries, and a pepsi. My ears...

Homework Statement An airplane flying horizontally at an altitude of 3 miles and at a speed of 480mi/hr passes directly above an observer on the ground. How fast is the distance from the observer to the airplane increasing 30 seconds later? Homework Equations The Attempt at a...

This is not homework, I'm just curious. Perhaps it belongs in the Engineering Forum, but the last one of these I posted there just got left in the dust. I have a rather specific question to ask those of you who are familiar with paper airplane building/structure/dynamics. How would I go about...

Hi guys, new here just wanted to say hello and I stumbled across this site while studying for my final, great site, now onto my question... Homework Statement A small plane of mass 3000 kg is flying in air of density 1.0 kg/m3. Air moves over the top and bottom of the surface of the wings...

http://online.wsj.com/article/BT-CO-20090427-714247.html OK, I get that they might have some recollection of 9/11, but I didn't hear any of this about the US Air flight that landed unplanned in the Hudson. They issued a notice. What's the big deal? Yet Bloomberg was furious? Schumer was...

Homework Statement An Airplane is traveling at 225 m/s when it strikes a weather balloon (m=1.82 kg) which can be considered to..? be at the rest relative to the ground below. After the collision, the balloon is caught on the fuselage and is traveling with the airplane. The collision takes...

Homework Statement An airplane pilot sets a compass course due west and maintains an airspeed of 220 km/hr. After flying for .5 hr, she finds herself over a town 120 km west and 20 km south of her starting point. Find the wind velocity (magnitude and direction). Homework Equations...

Homework Statement This isn't a homework problem with variables and numbers; it is a concept question: An airplane is flying west in level flight over Massachusetts, where the Earth’s magnetic field is directed downward below the horizontal in a northerly direction. As a result of the...

don't know if this is the right place to ask, but I've been wondering: can ever a plane land over an aircraft carrier, which is also a plane, both in flight? if so, how should they do that?

I was just wondering, that if you attached a fan in the front of an airplane wing, would it fly? If so, then how powerful would the fan need to be for a small model airplane, say 0.4m and 1kg, to fly/hover? Or if i made wearable wings, and i put them on, how powerful then would the fan have to...

Homework Statement When an airplane is in flight with the engine running, it is acted on by four forces. These are: (i) The weight of the airplane. (ii) The thrust provided by the engine, which pulls the airplane forward in the direction it is moving. (iii) The drag (air resistance), which...

[b]1. Homework Statement An airplane is flying with a velocity of 85.0 m/s at an angle of 19.0 degrees above the horizontal. When the plane is a distance 106 m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. [b]2. Homework Equations...

Homework Statement An airplane is flying through a thunderstorm at a height of 1800m. If there are charge concentrations of 40 C at height 3400m within the cloud and -28 C at height 772m, what is the strength of the electric field, E, at the aircraft? Answer in V/m Homework Equations E =...

Homework Statement "An aircraft whose airspeed is vo has to tfly from town O (at the origin) to town P, which is a distance D due east. There is a steady gentle wind shear, such that v-wind = Vy(x-hat) [the wind shear is in the x direction...]. x and y are measured east and north respectively...

Homework Statement An aircraft has a cruising speed of 100 m/s. On this particular day, a wind is blowing from the west at 75 m/s. If the pilot wishes to have a resultant direction of due north, in what direction should the plane be pointed? What will be the plane displacement in 1.25 h...

Homework Statement An airplane propeller is 2.02 m in length (from tip to tip) with mass 127 kg and is rotating at 2300 rpm about an axis through its center. You can model the propeller as a slender rod. a)What is its rotational kinetic energy? b)Suppose that, due to weight constraints, you had...

Homework Statement (a) Find the pressure difference on an airplane wing where air flows over the upper surface with a speed of 117 m/s, and along the bottom surface with a speed of 104 m/s. (b) If the area of the wing is 38 m2, what is the net upward force exerted on the wing...

Find the pressure difference on an airplane wing where air flows over the upper surface with a speed of 128 m/s, and along the bottom surface with a speed of 105 m/s. If the area of the wing is 26 m2, what is the net upward force exerted on the wing?

First off, I'm an aerospace engineer so please excuse the general incompetence in all civil and concrete matters I would like to make a steel reinforced concrete anchor point to tie down an airplane. The force applied to the eye bolt tie down is 10,000 lbs at approximately a 30 degree angle...

The takeoff of a DC-3 airplane is 110 km/h. Starting from rest, the ariplane takes 9.0 s to reach this speed. The mass of the (loaded) airplane is 9500 kg. What is the average power delivered by the engines to the airplane during takeoff? Need help on this one

A jetliner can fly 6.00 hours on a full load of fuel. Without any wind it flies at a speed of 240 m/s. The plane is to make a roundtrip by heading due west for a certain distance, turning around, and then heading due east for the return trip. During the entire flight, however, the plane...

Hello guys, I just have a quick question concerning the following problem: Problem In an air race, an airplane flies from a point directly over Metropolis to a point directly over Gotham City, and then turns around and flies back to the starting point. The airspeed (that is, speed of the...

Homework Statement A climber of mass 64.8 kg is rappelling down a cliff, but has momentarily paused. She stands with her feet pressed against the icy, frictionless rock face and her body horizontal. A rope of negligible mass is attached to her near her waist, 1.04 m horizontally from the rock...

Hello everyone, as my name suggests I love physics. Currently i am trying to get into physics again and find myself stuck with this problem. I would really appreciate if you gave me advice on just how to approach this problem, coz I really want to solve it myself. Problem You are flying in a...

Homework Statement An airplane is traveling at 30 m/s and wishes to travel to a point 8000 m NE (45 degrees). If there is a constant 10m/s wind blowing west: A) In what direction must the pilot aim the plane in degrees? B) How long will the trip take? Homework Equations Basic...

If you haven't heard yet, Japan is planning to throw paper airplanes from the ISS. Reportedly the airplanes will be able to survive re-entry: http://news.bbc.co.uk/2/hi/asia-pacific/7230949.stm" Me and my friend were talking about it earlier, and we're at odds as to how exactly Japan will...