Aviation stack exchange

What is the 3 1 rule in aviation?

A general rule of thumb for initial IFR descent planning in jets is the 3 to 1 formula. This means that it takes 3 NM to descend 1,000 feet. If an airplane is at FL 310 and the approach gate or initial approach fix is at 6,000 feet, the initial descent requirement equals 25,000 feet (31,000–6,000).

What is the 3/6 rule in aviation?

For larger aircraft, typically people use some form of the 3/6 Rule: 3 times the altitude (in thousands of feet) you have to lose is the distance back to start the descent; 6 times your groundspeed is your descent rate.

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What is the 3 2 1 rule in aviation?

It's called the 3-2-1 rule, and it's the easiest way to remember the regulation. To recap, if the weather at your destination isn't at least 3 SM of visibility and 2000' AGL ceilings from 1 hour before to 1 hour after your ETA, you need to file an alternate.

What are the 3 C's in aviation?

Hickox: The three C's pertain to cockpit, cabin, and crew, aligned with the three main domains on board the aircraft.

What is the 60 minute rule in aviation?

In 1953, the United States developed regulations that prohibited two- and three-engine airplanes from routes more than 60 min from an adequate airport (single-engine flying time), unless approved by the U.S. Federal Aviation Administration (FAA).

What is the 50 70 rule?

unobstructed runways, establish a landmark at 50% of your calculated takeoff distance. When reaching that landmark, you should be at 70% of your rotation speed. If not, abort the takeoff and reduce weight or wait for more favorable wind and temperature conditions.

What is the 90 day rule aviation?

The 90-day rule applies when carrying passengers. The licence holder must have completed within the previous 90 days, three take-offs and landings as sole manipulator of the controls in the same type or class to be used on the flight.

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What is the 3 1 distance rule?

This rule deals with minimizing the audible phasing problems when summing several microphones to mono. The rule states that the source-to-microphone distance of numerous microphones should be three times the distance between the sound source and the nearest microphone.

Why do they call it the 3 1 1 rule?

In short, the 3-1-1 rule is: Each liquid you bring through the TSA checkpoint must be in a 3.4-ounce or smaller container ("3"), all containers must be placed inside one clear quart-size plastic bag ("1") and each passenger is only allowed one plastic bag ("1").

What is the golden rule in aviation?

Golden rules are: Basic principles of flying modern commercial aircraft. Part of good airmanship and maintaining situational awareness. Available for normal, abnormal and emergency situations.

What are the 3 major right of an air passenger?

There are three (3) major rights of passengers covered under said issuance, namely: (a) right to be provided with accurate information before purchase of the ticket; (b) right to receive the full value of the service purchased; and (c) right to compensation.

Where do I put my mic to avoid phasing?

THE 3:1 RULE

You put the first mic right up against the grill, about an inch away from the speaker. The second mic should be placed three inches away from the speaker to avoid phase cancellation. Pretty easy, right?

How far away should I be from my mic?

A good rule of thumb is to have the mic positioned about 6-12 inches away from your mouth. As you get closer to the mic, an increase in low frequency response can occur, causing your voice to be overly bassy.

Do tube mics need to warm up?

Allow the mic to warm up for 15 to 30 minutes before use so that the tube reaches a stable operating temperature. This ensures low noise and consistent audio performance.

Why does TSA not allow water?

The liquid ban was introduced around the world after a transatlantic terrorist plot was foiled in August 2006, in which a group planned to detonate liquid explosives on board multiple flights.

Does toothpaste count as a liquid?

Common travel items that must comply with the 3-1-1 liquids rule include toothpaste, shampoo, conditioner, mouthwash and lotion.

Is 100 ml perfume allowed on plane?

The capacity of each container must not exceed 0.5 kg (18 ounces) or 500 ml (17 fluid ounces). See the FAA regulations for more information.