normal plane


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normal plane

[′nȯr·məl ′plān]
(mathematics)
For a point P on a curve in space, the plane passing through P which is perpendicular to the tangent to the curve at P.

Normal Plane

 

(to a space curve at a given point M), the plane that passes through M perpendicular to the tangent line at M. The normal plane contains all normals to the curve that pass through the given point. If the curve is given in rectangular coordinates by the equations x = f(t), y = g(t), and z = h(t), then the equation of the normal plane at the point M(x0, y0, z0)corresponding to the value to of the parameter t can be written in the form

normal plane

In aerodynamics, a plane at right angles to the longitudinal axis of an aerial vehicle.
References in periodicals archive ?
com estimates a typical flight time of 12hr 13min for a normal plane.
The US-built Osprey has a top speed of 530 km/h almost double that of modern helicopters has and a 3,900 kilometer range five times greater than the CH-46 Sea Knight helicopter, as it is a VTOL which also works as a normal plane in forward movement.
He said that the first sighting was of a bright white light travelling much slower and lower than a normal plane.
Current aetiological concepts include abnormal decidualisation (with an absent normal plane of cleavage above the decidual basalis) and a primary defect of trophoblast function leading to abnormal invasiveness.
oi] and the horizontal angle are measured from the meridian plane passing through the coordinate origin to the normal plane passing through origin and the object to be determined, i.
The amount of physiologic joint laxity, even if articular contact is maintained, influences articular excursion in the normal plane of movement.
SHE can't walk down steps unaided, she can't sleep on her back and she can't fit into a normal plane seat.
Similarly, the curves for which the position vector [phi] always lie in their osculating plane, are for simplicity called osculating curves and the curves for which the position vector always lie in their normal plane, are for simplicity called normal curves [4].
Then is determined the equation of the normal plane at the average helix of tooth space:
The mother-of-three added: "His injuries were so bad he couldn't be flown over in a normal plane.
But he did say he would be coming back in a normal plane, which shouldn't take as long.