Contents
- 1 What is the effect of advancing the throttle in flight?
- 2 What do pilots say when reducing throttle?
- 3 What causes an airplane except at tail?
- 4 What is an advantage of a constant speed propeller?
- 5 Do pilots turn off engines?
- 6 Why do planes sound so loud sometimes?
- 7 What kind of noise does a plane make when it lands?
- 8 What does turbulence sound like on a plane?
What is the effect of advancing the throttle in flight?
Advancing the throttle increases combustion, which spins the driveshaft faster and increases rpm. When airspeed increases, the relative airflow from the airplane’s forward motion reduces the angle of attack for a given pitch of the propeller blade, which reduces drag and lets the propeller spin faster.
What do pilots say when reducing throttle?
In aviation, “retard” is a command to reduce the throttle position. It is used throughout the industry but is especially noteworthy in Airbus aircraft.
Why do planes sound like they are going to crash?
That noise you hear is from the landing-gear struts that act as a shock absorber. “When the plane lifts off the runway, the strut extends fully, to its limit” as the wheels suddenly bounce off the ground, explains Bunn.
What causes a stall?
A stall occurs when the angle of attack of an aerofoil exceeds the value which creates maximum lift as a consequence of airflow across it. Changing the effective configuration of a wing by the deployment of leading edge or trailing edge devices will directly alter the angle of attack at which an aerofoil stalls.
What causes an airplane except at tail?
What causes an airplane (except a T-tail) to pitch nosedown when power is reduced and controls are not adjusted? A) The CG shifts forward when thrust and drag are reduced. When thrust is reduced to less than weight, lift is also reduced and the wings can no longer support the weight.
What is an advantage of a constant speed propeller?
A constant speed propeller allows the engine to develop full power at any climb speed (Vx, Vy) thus maximizing climb performance. Rate of climb can be increased by as much as 35% with a constant speed propeller!
Do pilots use full throttle on takeoff?
Answer: Most takeoffs use “derated” thrust to save engine wear. For each takeoff, performance is calculated, the necessary power setting is determined and the thrust setting is made. The captain always makes the final decision whether to use full thrust or derate.
Why do planes turn before landing?
Airlines are today required to turn off plane lights during takeoff and landing. The reason this is done is because of the time it takes for our eyes to adjust to the dark. It can take our eyes between 10 to 30 minutes to adjust to darkness.
Do pilots turn off engines?
Pilots have come out and said that while we’re in the air eating our boxed dinner or packaged snack, they turn the engines off. It also means that if there is an emergency situation and the engines do fail, flight crews have time to solve the issue.
Why do planes sound so loud sometimes?
Inversions, which occur when the air temperature increases as altitude increases, have the same effect on noise as does cloud cover. These types of weather conditions slow the atmospheric absorption of the noise waves and may cause jet aircraft noise to sound louder.
Which bathroom stall is the cleanest?
first stall
Why? Because the first stall is the least often occupied by public bathroom users—meaning it’s also the cleanest. “Experts theorize that people tend to skip the first stall in favor of stalls farther back to have a little more privacy,” writes Dr. Mehmet Oz on Sharecare.
What is surging and stalling?
In elementary terms, stall is a disturbance of the flow in the tangential direction, while surge is a disturbance in the axial direction. During stalled operation, the average flow rate through the compressor is steady, but during surge, the flow rate will pulse—sometimes so violently that reversed flow is induced.
What kind of noise does a plane make when it lands?
A large amount of airflow is produced from the winglet/wingtip of aircraft and this is called a vortice. Sometimes you can see the vortice. You often hear ATC warn pilots of wake turbulence after a heavy jet has just landed and this is the airflow that is circling behind the jet after it has landed and you can hear it.
What does turbulence sound like on a plane?
Some of the A&E , TLC and other cable channels have had stories about turbulence behind an aircraft, and they show wind tunnel test that simulate what you are hearing. I call it a ‘zipper’ effect,,,,kinda sounds like a zipper being pulled.
Where can you hear the plane when it goes over?
Oh yes. Definitely. An excellent place to hear it is at DCA airport, (Washington Ronald Reagan National) in the “Gravelly Point Park” where planes approach rwy. 18 are extremely low. Has anyone else heard it here?
Is the wake turbulence dangerous on a plane?
The wake turbulence can actually be dangerous as in Sydney, Australia I was once standing at the 16R threshold and after a MD11 landed I suddenly felt an enourmouse gust of wind. Also at the runway 07 threshold when aircraft landing you hear the wind suddenly as it comes off the aircrafts wings.