What is the formula for aerodynamic lift?
The lift equation states that lift L is equal to the lift coefficient Cl times the density r times half of the velocity V squared times the wing area A. For given air conditions, shape, and inclination of the object, we have to determine a value for Cl to determine the lift.
What is Dynamic Lift?
Dynamic lift is the force that acts on a body by virtue of its motion through a fluid. It can be defined as: Dynamic lift is the force which acts on a body such as an airplane wing hydro fall or spinning Ball by virtue of its motion through a fluid.
How do you calculate total lift?
The final calculation for lift is to multiply density and velocity squared, divided by tow, then multiply by coefficient and wing area. This number will give you the total lift of your flying object.
How is lift coefficient calculated?
The lift coefficient Cl is equal to the lift L divided by the quantity: density r times half the velocity V squared times the wing area A. The lift coefficient then expresses the ratio of the lift force to the force produced by the dynamic pressure times the area.
What is maximum lift coefficient?
For a thin airfoil of any shape the lift slope is π2/90 ≃ 0.11 per degree. At higher angles a maximum point is reached, after which the lift coefficient reduces. The angle at which maximum lift coefficient occurs is the stall angle of the airfoil, which is approximately 10 to 15 degrees on a typical airfoil.
Which flap gives the best lift coefficient?
A leading edge flap increases the curvature of the top of the airfoil. This considerably increases the lift coefficient. A movable slat (slotted leading edge flap) increases the lift through a combination of increased wing area and increased camber and through the influence of the flow with the aid of the slat.
How long can a plane stay in the air?
21 hours
What’s the longest flight you can take?
Lufthansa repatriated German citizens from New Zealand, Austrian Airlines flew nonstop from Sydney to Vienna, and in March, Air Tahiti Nui operated the longest nonstop commercial flight ever: 9,765 miles from Papeete, Tahiti, to Paris.
What plane can stay in the air the longest?
What plane can fly the farthest in the world? The current record for the longest-distance commercial flight is held by a Boeing 777-200LR. This flight from Hong Kong International Airport to London Heathrow took the long way (vs. great circle distance) and was logged at 21,602 km (13,423 mi/11,664 nm).
How high is too high for a plane?
According to USA Today, the common cruising altitude for most commercial airplanes is between 33,000 and 42,000 feet, or between about six and nearly eight miles above sea level. Typically, aircraft fly around 35,000 or 36,000 feet in the air.
What determines how high a plane can fly?
In the flight levels, the altitude is set by reference to a standard barometric pressure of 29.92 so as to create a standard reference for all aircraft and avoid any variation. The plane’s altitude is largely determined by traffic en route and the only thing in aviation that’s free—the wind.
Are planes checked before every flight?
All good pilots use pre-flight checklists before every flight. A pre-flight checklist is a comprehensive list of actions that should be completed by the pilot on every flight, prior to takeoff.
How fast do airplanes go before takeoff?
A headwind will reduce the ground speed needed for takeoff, as there is a greater flow of air over the wings. Typical takeoff air speeds for jetliners are in the range of 240–285 km/h (130–154 kn; 149–177 mph). Light aircraft, such as a Cessna 150, take off at around 100 km/h (54 kn; 62 mph).
What happens before a flight takes off?
Before an aircraft can take off, it has to taxi (i.e. move on the ground under its own power) from the airport terminal to the runway. Aircraft always take off into a headwind, as this increases airspeed and so reduces the length of the take-off run, so the plane will taxi to the downwind end of the runway.
Can 2 captains fly together?
A Captain can fly with a First Officer. By default the Captain will be the Commander. A Fist Officer can not fly with another First Officer as neither of them can be allocated the role of Commander, and every flight has to have a Commander. Two Captains can form a crew as either one can be designated as Commander.
Are airline pilots captains?
The pilot in command (PIC) of an aircraft is the person aboard the aircraft who is ultimately responsible for its operation and safety during flight. This would be the captain in a typical two- or three-pilot aircrew, or “pilot” if there is only one certificated and qualified pilot at the controls of an aircraft.
Is take off or landing more dangerous?
Boeing research shows that takeoff and landing are statistically more dangerous than any other part of a flight. 49% of all fatal accidents happen during the final descent and landing phases of the average flight, while 14% of all fatal accidents happen during takeoff and initial climb.
How does it feel to take off in a plane?
Takeoff is not really like a roller coaster; it’s just a gentle sensation of accelerating and going upwards for a few minutes, after which the plane levels off.