What is the 60 minute rule for aircraft?

Years ago, piston engines were undependable. Because of this, twin-engine aircraft were required to fly in range of a suitable airport for landing. In 1953, the FAA imposed what is known as the “60-minute rule” on two- and three-engine airplanes, disallowing them to fly more than 60 minutes outside the closest airport.



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For example, if an aircraft is certified for 180 minutes, it is permitted to fly any route not more than 180 minutes' single-engine flying time to the nearest suitable airport.

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When it is within your control, run, don't walk, to the gate. My rule: Ten minutes before departure is when getting on a plane is no longer within your control. It's better to sit or stand around the gate area waiting to board.

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The 120-minute rule is determined by when you make the reservation, not the return time for the attraction. So if you both log on at 9 AM to make a reservation for different attractions, you will both have to wait 120 minutes (or after riding the attraction, whichever comes first) to make your next selections.

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In aviation medicine, the 1% rule is a risk threshold that is applied to the medical fitness of pilots. The 1% rule states that a 1% per annum risk (See also risk management) of medical incapacitation is the threshold between acceptable and unacceptable.

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Flight times within the duty periods are restricted to a maximum of 8 hours for flight crews consisting of one pilot and 10 hours for flight crews consisting of two pilots. The 8-hour and 10-hour flight time limitations include any additional commercial flying performed by the flight crew during the period.

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40% of your income goes towards your savings. 30% of your income goes towards necessary expenses (food, rent, bills, etc.). 20% of your income goes towards discretionary spending (entertainment, travel, etc.). 10% of your income goes towards contributory activities (donations, charity, tithe, etc.).

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The Twelve-Five Standard Security Program (TFSSP) outlines requirements for FAA Part 135 certificated carriers offering commercial air transport using aircraft with a maximum certificated takeoff weight between 12,500 pounds (5,670 kg) and 100,309.3 pounds (45,500 kg).

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Many pilots refer to this as the 1-2-3 rule: Plus or minus 1 hour from arrival, ceilings at least 2,000 feet and visibility at least 3 statute miles.

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In aviation, the rule of three or 3:1 rule of descent is that 3 miles of travel should be allowed for every 1,000 feet of descent.

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As part of the testing of a new aircraft, the manufacturer must demonstrate that all passengers can be evacuated in a short amount of time when an emergency arises - within 90 seconds to be precise. If it doesn't comply, the aviation authorities won't approve its safety certification.

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