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Module 13. Aircraft aerodynamics, structures and systems

on power up, the IRS obtains position

  • latitude and longitude from previous position
  • longitude from previous position
  • latitude from previous position

Gibbo280490 asking:

I have read many conflicting answers on the net and i thought i came to the decision it was LAT, any explanations?

Community Comments (2)

M
MridulDev Posts: 48 11.03.2016 / 08:36
from what i read, IRS can't calculate local longitude, and hence it is obvious that it'll take the local longitude from previous location while it'll try to acquire local latitude. Correct/ comment me if I'm wrong.
J
Jordi Posts: 198 09.04.2021 / 11:51
IRS=obtains from the longitude of the previous position

INS=obtains from the latitude of the previous position.

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