An aircraft is a vehicle or machine that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. Common examples of aircraft include airplanes, helicopters, airships, gliders, paramotors, and hot air balloons.
A kytoon or kite balloon is a tethered aircraft which obtains some of its lift dynamically as a heavier-than-air kite and the rest aerostatically as a lighter-than-air balloon. The word is a portmanteau of kite and balloon
Glider (aircraft)
A glider is a fixed-wing aircraft that is supported in flight by the dynamic reaction of the air against its lifting surfaces, and whose free flight does not depend on an engine. Most gliders do not have an engine, although motor-gliders have small
Demographics of the Northern Mariana Islands
This article is about the demographic features of the population of the Northern Mariana Islands, including population density, ethnicity, education level, health of the populace, economic status, religious affiliations and other aspects of the population
Propulsion is the action or process of pushing or pulling to drive an object forward. The term is derived from two Latin words: pro, meaning before or forward; and pellere, meaning to drive. A propulsion system consists of a source of mechanical power
Flettner Fl 265
The Flettner Fl 265 was an experimental helicopter designed by Anton Flettner
Škoda-Kauba SK 257
The Škoda-Kauba Sk 257 was a Czechoslovakian-built fighter trainer monoplane built by Škoda-Kauba Flugzeugbau for the Luftwaffe
Boris Cheranovsky
Boris Ivanovich Cheranovsky was a Soviet aircraft designer, notable for creating aircraft with a characteristic tailless parabolic wing. — the BICh-1 and BICh-2 gliders from 1924, and the powered BICh-3 later
Autorotation (fixed-wing aircraft)
For fixed-wing aircraft, autorotation is the tendency of an aircraft in or near a stall to roll spontaneously to the right or left, leading to a spin
Porterfield Collegiate
The Porterfield Collegiate is an American-built two-seat training and touring monoplane built by the Porterfield Aircraft Corporation of Kansas City
List of Billboard Digital Song Sales number ones of 2022
The Billboard Digital Song Sales chart is a chart that ranks the most downloaded songs in the United States. Its data is compiled by Nielsen SoundScan based on each song's weekly digital sales, which combines sales of different versions of a song by an