2.5 and better. It various, depending on brand and design. The different manufacturers are constantly improving the glide-ratio for their suits.
The glide ratio of an Airbus A380 is approximately 15:1. This means that for every 15 units of horizontal distance it covers, it descends about 1 unit vertically. This ratio allows the aircraft to glide efficiently in the event of an engine failure or other emergencies. However, the exact glide ratio can vary based on factors such as weight and weather conditions.
The glide ratio of a Piper Saratoga is approximately 10:1. This means that for every 10 feet of horizontal distance traveled, the aircraft descends about 1 foot. The glide ratio can vary based on factors such as weight, configuration, and environmental conditions. Pilots should be aware of this ratio for effective management during engine-out scenarios.
The Gulfstream G550 has a glide ratio of approximately 15:1. This means that for every 15 units of horizontal distance covered, the aircraft can descend 1 unit vertically. This glide ratio allows for effective performance in emergencies and provides pilots with a better understanding of their descent capabilities in case of an engine failure.
Lift/Drag x Height loss
To calculate the glide ratio, you divide the length it was thrown, e.g. 150cm, by the height it was thrown, e.g. 50cm. So 150/50=30cm so, it would be 30:1.
133 to 140 knots
A glide ratio of 7 means that for every 7 units of horizontal distance traveled, an aircraft descends 1 unit vertically. This ratio indicates the efficiency of a glider or aircraft in maintaining altitude while moving forward. A higher glide ratio suggests better performance, allowing the aircraft to cover more distance before losing altitude. In practical terms, it shows how far a glider can travel horizontally without power compared to its descent.
In an md80 id say around an hour
That would be a function of the glide ratio of the paper airplane in question.
The max speed of an MD80 is 500kt, cruising speed around 440kt.
Around 30 to 172 passengers depending on variant and seating configuration.