Flaps, or more properly “trailing edge high lift devices,” have two functions—they increase drag and enable the wing to sustain lift at a lower speed. The purpose of increasing drag is not ...

Finally we explore how the lift force varies with the angle of attack of the airfoil (which explains why aerobatic aircraft use symmetrical airfoils), and how stalling can result in a dangerous ...

This Streamlit application analyzes thin airfoils using the thin airfoil theory. It computes and visualizes the camber line, lift coefficient (Cl), moment coefficient (Cm), and streamlines around the ...

Russia launched a massive drone attack targeting Kyiv and other major cities in Ukraine overnight on Sunday, killing at least seven people. The attack comes just days before Ukrainian and Russian ...

A 15-year-old boy accused of killing an elderly man has told so many lies he has "difficulty keeping track", a murder trial has heard. The child allegedly racially abused 80-year-old Bhim Kohli ...

The Engels base in Saratov region is used by Russian strategic bombers. LONDON -- Russian authorities reported a "massive" Ukrainian drone attack on the Engels airbase in Saratov Oblast overnight ...

The Israel Defense Forces identified five signs of unusual Hamas activity the night before the terror group’s October 7 onslaught, but believed they did not ...

At least seven people are dead, including a 5-year-old girl, after Russia launched nearly 150 drones across Ukraine overnight — just a day before cease-fire talks are set to resume, officials said.

A stabbing attack left one person dead and four others wounded in Haifa, Israel, on Monday. Police said they were treating the stabbing, which took place in a central transit hub, as a militant ...