TERMIUM Plus®

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INITIAL ERECTION [2 records]

Record 1 2001-08-17

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
  • Aircraft Piloting and Navigation
  • Navigation Instruments
DEF

The mode of operation of a vertical gyro in which the gyro is being erected or slaved initially.

CONT

Gyroscopic instruments... Once the artificial horizon line is aligned with the natural horizon of the earth during initial erection, the artificial horizon is kept horizontal by the gyro on which it is mounted. An erection mechanism automatically rights the gyro when precession occurs due to maneuvers or friction. When the older-type gyro tumbles as a result of extreme attitude changes, the rotor normally precesses slowly back to the horizontal plane. Even an attitude indicator in perfect condition can give slight erroneous readings. Small errors due to acceleration and deceleration are not significant because the erection device corrects them promptly; nonetheless, the pilot should be aware of them...

OBS

The initial erection rate is usually relatively high.

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
  • Instruments de navigation

Spanish

Save record 1

Record 2 1991-12-05

English

Subject field(s)
  • Field Engineering (Military)
OBS

This requisition is raised to procure initial provisioning spares to support the boat, bridge erection, Sealander.

Key term(s)
  • boat bridge erection

French

Domaine(s)
  • Génie (Militaire)

Spanish

Save record 2

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