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ground loop

noun, Aeronautics
a sharp horizontal loop performed, usually involuntarily, while touching the ground.
Origin of ground loop
1920-25 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for ground loop
  • ground loop accidents were common and some resulted in serious injuries.
  • Each heat pump package is plumbed in parallel with the ground loop.
  • ground loop impedances are measured before installation is released for operation.
  • The cost of the unit and the placement of the ground loop have been major barriers to wide market acceptance, however.
  • It is also used to operate a ground loop geothermal heating and air-conditioning system for the residence.
  • The major difference between the two designs is the presence of a plate-and-frame heat exchanger in place of the ground loop.
  • Even leaving out the cost of ground loop installation, the equipment is still much more expensive for residential installations.
  • Each ground loop is also pressure-tested for leaks and integrity before it leaves the factory.
British Dictionary definitions for ground loop

ground loop

a sudden uncontrolled turn by an aircraft on the ground, while moving under its own power
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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