T-45C TS, ADV & IUT ENG-24
GINA Operating Characteristics
INSTRUCTOR NOTES
When the parking brake is set, if the system does not attain a
locked-on with four (4) satellites, the GINA will not complete its
alignment. There will be no cockpit indication, except that
ALIGN (alignment time) on the ACFT DATA page will remain at
zero, and GPS SAT (number of GPS satellites locked-on) will
be a number less than four (4). DGRO will not be boxed. The
pilot should send WYPT-0 information from the DEU to the
GINA, so an alignment can progress.
4.
Determines aircraft position
a.
GPS is the primary data source for position
determination during land alignments
b.
WYPT-0 is secondary position data source
c.
WYPT-0 is automatically used for land
alignment only if one (1) of the following four
(4) conditions are met
(1) GINA power is cycled; using PWR on the
BIT display page is easiest method
(2) RST (restart) is selected on the ACFT
DATA display page
(3) WYPT-0 coordinates are changed
(4) GINA IBIT is initiated; takes approximately
two (2) minutes
5.
A full alignment is complete, when a velocity vector
replaces the waterline symbol on the HUD and the
INS legend appears on the ADI
J.
Alignment (SHIP)
Sg 6, fr 2
Fig 12: SHIP
Alignment
1.
Ship’s movement must be cancelled out during the
alignment; GPS required to determine heading and
attitude and ship movement “null” factor
Original (9-98)
Page 24-34
Previous Page
