Performing a ground speed check - P-12820150

 Web www.tpub.com

Home

Information Categories
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion

T-45C TS INav-05
c. When lead point is reached, turn to intercept
selected course
NOTE: The CDI may not have started to move at
lead point because it is not active until you are
within 10 degrees of the course.
4. Performing a ground speed check
NOTE: For a reliable ground speed check, the DME
from the station should be greater than aircraft altitude
in thousands of feet.
EXAMPLE: Altitude is 30,000 ft (FL 300), so DME
should be 30 nm or greater.
a. Start timing when DME indicator displays a whole
number
b. After predetermined time (in minutes), check and
note DME
c. Determine distance flown and multiply that number
by multiplier corresponding to time flown
EXAMPLE: Your distance flown is 6 on the DME
indicator. The elapsed time is 1 minute, so 6 times
60 equals 360. Ground speed is 360 kts (6 nm/min
times 60 min/hr equals 360 nm/hr).
NOTE: Track either inbound or outbound on a given
radial when making a ground speed check.
NOTE: Every 1/10 nm equals 6 kts.
NOTE: Checking ground speed for more than 1
minute increases the accuracy of this method.
5. Proceeding direct between TACAN fixes (point-to-point)
a. Tune and identify station if not already done
Page 5-11
(2-02) Original

 Integrated Publishing, Inc.