Flight Log-Explained Lecture Problem -Cont. - P-3060017

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T-34C INSTRUMENT FLIGHT RULES
Step 11: Compute climb and cruise ground speed using CR-2 wind side.
As a habit, calculate climb and cruise GS for both 1st and 2nd legs, this will save time later.
1.
Using computed GS for the climb or cruise as appropriate, compute time to first fix.
Compare with TTC of 10min calculated earlier.
7 min (to first fix) < 10 min (TTC) , Therefore, we will level off 3 min into the second
leg.
*Refer to step 11, 2(c).
2.
3 Possibilities concerning level off:
a.
Crossing the fix at level off.
b.
Reaching cruise altitude prior to the fix.
c.
Reaching cruise altitude after first fix (as in this problem).
Compute split leg ­ We know that 3 min of 2nd leg is climbing. Use climb GS for 2nd leg
3.
(ironically 145 KIAS due to small course change) to calculate distance traveled in 3 min. (USE
CR-2)
Dist in climb for 3 min = 7 nm
DIST
ETE
7
3
V543 BAING
33
Subtract climb leg mileage from total leg mileage. 33-7 = 26.
26 NM of second leg is at cruise GS. Calculate ETE with CR-2 using cruise GS.
7
26
3
7
33
10
FLIGHT LOG EXPLAINED 9

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