angle of elevation

[′aŋ·gəl əv ‚el·ə′vā·shən]

(engineering)

The angle in a vertical plane between the local horizontal and an ascending line, as from an observer to an object; used in astronomy, surveying, and so on. Also known as ascending vertical angle; elevation angle.

(ordnance)

The vertical angle above the line of sight through which the axis of the gun bore must be raised so that the bullet or projectile will carry to the target.

In aerial gunnery, an acute angle between the bore axis of a gun and the horizontal; called quadrant elevation in ground gunnery.

angle of elevation

The angle in a vertical plane between the local horizontal and an ascending line, as from an observer to an object. A negative angle of elevation is usually called an angle of depression.

Mentioned in

References in periodicals archive

Table 2 lists the values of i and [A.sub.i] for each angle of elevation. The latter are standardized values [15] derived from calculations that account for the relative areas on the imaginary spherical surface associated with the sound source locations at a given angle of elevation.

NIST system for measuring the directivity index of hearing aids under simulated real-ear conditions

ANSWERS: 1 Edward Kennedy; 2 The angle of elevation; 3 Stanley Matthews; 4 Reflex; 5 Knightsbridge; 6 Animal Farm, by George Orwell; 7 Who Do You Do; 8 Judo; 9 Canada; 10 William Cobbett.

Quiz of the Day

We calculated two angles to describe the position of the upper arm related to the thorax: (1) the angle of elevation (Figure 3(b)), defined as the angle between the upper arm and trunk (upper arm parallel with thorax, 0[degrees]; upper arm parallel with horizontal; 90[degrees]), and (2) the plane of elevation (Figure 3(c)), defined as the angle between the thorax and the upper arm in the transversal plane (arm extended forward, 0[degrees]; arm extended to the lateral, -90[degrees]).

Influence of gravity compensation on kinematics and muscle activation patterns during reach and retrieval in subjects with cervical spinal cord injury: an explorative study

Our method was to apply forces calculated at each angle of elevation for 10,000 cycles each.

Analysis of reverse total shoulder joint forces and glenoid fixation

Now, given the large number of people waiting in line with me, not to mention my angle of elevation to those behind, I naturally just assumed it was someone else's shoulder I could feel brushing against me.

SQUARE DANCE

Simple geometry can be used to show that the angle of elevation of the Sun on the meridian near noon is 90[degrees] minus the angular difference between the Sun's declination and an observer's latitude (Kaler, 2002: 43) and the result could be graphed for this specific latitude.

Solar motion from Australia

This angle of elevation is so subtle, only a couple of degrees, that it is probably unnoticeable to the casual observer.

A primer on exterior ballistics for Infantrymen

"We had to help construct a model of the local buildings and calculate the angle of elevation of the sun to piece together where the sun would have been and whether he could've been blinded as he'd claimed."

Forecast looks good for Steve... IT started as a geography project, but over the last 30 years it has become crucial in planning Coventry weddings and has even helped to solve murders. The award-winning Bablake Weather Station provides local forecasts for Coventry and holds records of the city's hottest, wettest and stormiest days dating back to 1870. Environment reporter MARY GRIFFIN braved the elements to visit the station

It was allowable if it did not exceed the angle of elevation of the Mull of Kintyre from the mainland.

Travel: Notes on a small island; DAN BOURKE mulls over some facts about Mull FAMILY FUN SHORT BREAKS TO UNWIND IN BRITAIN

You can view at any angle of elevation and from any direction.

Location, location, location: today's electronics may save more than just your hunt; they can save your life

At a maximum firing angle of elevation of 35-degrees, the rifle, shotgun and muzzleloader projectiles travel 13,926', 10,378', and 9,197' respectfully.

The "safe" slug myth: shotgun slugs are required in some areas, but why?

Their study found that the majority of participants (61.6%) overestimated the angle of elevation. In our study, all of those who were inaccurate overestimated the angle of elevation.

Nurses' accuracy in estimating backrest elevation