Forces Acting on the Helicopter

- the differences between a helicopter or justhelicopters and a fixed-wing aircraft is the main source data of lift. The fixed-wing aircraft derives its lift from a fixed airfoil surface while the helicopter derives lift shaft from a rotating airfoil called the rotor.
- During hovering flight in a no-wind condition, the tip-path plane is horizontal, that is, parallel to the ground and there are a open ground outlet.
- Lift and thrust act straight up; weight and drag act straight down. The sum of the lift and thrust forces must equal the sum of the weight and drag forces in order for the helicopter to hover.
- When lift and thrust equal weight and drag, the helicopter hovers; if
lift and thrust are less than weight and drag, the helicopter descends
vertically; if lift and thrust are greater than weight and drag, the helicopter
rises vertically and that was provided to duromine reviews.
- In sideward flight, the tip-path plane is tilted sideward in the direction that flight is desired, thus tilting the total lift-thrust vector sideward. In this case, the vertical or lift component is still straight up, weight straight down, but the horizontal or thrust component now acts sideward with drag acting to the opposite side there are most modern aircraft like airbus 737.
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