variometer
vertical speed indicator
rate-of-climb indicator

This leaves you with a working variometer but without total energy.

The Netto variometer will always read zero in still air.

It is usual for gliders to be equipped with more than one type of variometer.

A variometer can be used to measure the rate of ascent of an aircraft.

A variometer is a very sensitive vertical speed indicator.

L6wenherz pulled the control column back and the variometer showed a steady climb while holding the air-speed.

It was sinking at five metres a second according to the variometer and he couldn't lessen the rate of descent.

Δh is the compensation to apply to the uncompensated variometer reading.

The minimal instrumentation required is an airspeed indicator and a variometer.

So the variometer shows zero rate of climb, and does not indicate the presence of the thermal.

Before the invention of the variometer, sailplane pilots found it very hard to soar.

The next year he started work on a modified version of the device, which he called the "horizontal variometer".

GPS is integrated with some models of variometer.

However, a simple variometer does not actually measure the lift in the thermal, it measures the rate of ascent of the aircraft.

The term "variometer" is most often used when the instrument is installed in a glider or sailplane.

There was no windscreen and the instruments, including the still novel variometer were displayed horizontally, inset into the fuselage immediately in front of the pilot.

The term variometer also refers to a type of variable transformer or an instrument for measuring the magnitude and direction of a Magnetic field.

Therefore an uncompensated variometer can only accurately indicate the vertical speed of the airmass when flying at constant speed.

A total energy compensated variometer will show the actual rate of climb of the thermal, regardless of the movement of the aircraft.

A second type of compensated variometer is the Netto or airmass variometer.

A variometer that produces this type of audible tone is known as an "audio variometer".

The variometer indicates climb rate or sink rate with audio signals (beeps) and/or a visual display.

A simple variometer can be constructed by adding a large reservoir (a thermos bottle) to augment the storage capacity of a common aircraft rate-of-climb instrument.

He put the nose up a trifle and watched the air-speed needle dip, but now the variometer was edging up to show that they were climbing.

"We have to find air that's rising faster than we're sinking," Mr. McMaster said blithely as a variometer showed a rapid rate of descent.

An increase in climb rate will not show up immediately on the vertical speed indicator.

He begins to apply up elevator until the vertical speed indicator shows 500 feet per minute.

A variometer is a very sensitive vertical speed indicator.

A vertical speed indicator, which shows the rate at which the plane is climbing or descending.

The pilot then begins applying down elevator until the vertical speed indicator reads 500 feet per minute, starting the cycle over.

Reversal errors primarily affect altimeters and vertical speed indicators.

The impression given by the senses in that situation would be level flight, with a descent indicated on the altimeter and vertical speed indicator.

On the other hand, the vertical speed indicator, or VSI, is more of "a good help" than absolutely essential.

Unless turbulence is severe, use the Vertical Speed Indicator to help maintain correct pitch attitude.

Vertical speed indicator.

The needle on the vertical speed indicator swung lazily up past five hundred feet a minute, then eight hundred, and stabilized at one thousand.

Vertical Speed Indicator 4.

However, because the vertical speed indicator lags the actual vertical speed, the pilot is actually descending at much less than 500 feet per minute.

The vertical speed indicator will become frozen at zero and will not change at all, even if vertical airspeed increases or decreases.

The term "vertical speed indicator" or "VSI" is most often used for the instrument when it is installed in a powered aircraft.

Cazaux watched, and in a few seconds the airspeed indicator crept up to one-twenty and the vertical speed indicator nudged upwards.

The pilot must then use both skill and luck to find them using a sensitive vertical speed indicator called a variometer that quickly indicates climbs and descents.

Accident investigation found that masking tape was accidentally left over the static ports during maintenance, turning the airspeed indicator, altimeter and vertical speed indicator unreliable.

The Turn and Bank Indicator will be scanned continuously, with the Vertical Speed Indicator and Magnetic Compass.

The instrument panel is fitted with an airspeed indicator, altimeter and vertical speed indicator, a magnetic compass, turn indicator, ignition switch and fuel pump.

It will in most cases include a digitized presentation of the attitude indicator, air speed and altitude indicators (usually as a tape display) and the vertical speed indicator.

Also, nearly every glider contains an instrument known as a variometer (a very sensitive vertical speed indicator) which shows visually (and often audibly) the presence of lift and sink.

Temporary confusion on the part of the pilots when reading the vertical speed indicator, which was different to the A and B series of the aircraft to which they were accustomed.

As the airspeed bled off in the climb, Gerswin began to lower the nose, keeping the thrusters at full power, studying the EGTs and the vertical speed indicator.

The vertical speed indicator, usually next to the altitude indicator, indicates to the pilot how fast the aircraft is ascending or descending, or the rate at which the altitude changes.

The needle of the rate-of-climb indicator rose jerkily; they were climbing at two hundred feet a minute.

And the rate-of-climb indicator" he pointed to it-"shows we're climbing at about five hundred feet a minute.

She recognized the rate-of-climb indicator, and then the roll-and-bank next to it, where it should be.

In addition to the three instruments already used, students were taught to use two gyro instruments, the magnetic compass, the rate-of-climb indicator, and the clock.

Once he explained to a superior why a rate-of-climb indicator had a logarithmic scale (by formulating a first order differential equation to describe the operation of the device and then solving it).