LIGHT AND COLD HOT AND HEAVY
5 4000 ft 2000 ft
10 6250 ft 3900 ft
15 FL100 5000 ft
20 Extrapolate 5800 ft
25 6250 ft
30 FL75
35 FL80
40 Extrapolate
Table 7 - 1: Rate of Climb data under different conditions
Figure 7 -1: Diagrammatic representation of Table 7-1
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By plotting the position of the two alternatives (Option 1 and Option 2) at the appropriate distances from the runway end, it can easily be seen that, whilst the climb profile range of the aircraft entirely encompasses Option 2, Option 1 is almost entirely outside the climb performance of the 737-300 used for the simulation. Therefore, from an aircraft point-of-view, selection of Option 1 as the arrival track would, in almost all circumstances, allow unrestricted climbs to be achieved by this aircraft type. Clearly, aircraft performance is not the only criterion to be assessed when selecting the route placement, but it is a valuable aid to the decision-making process.
EXAMPLE 2
A more complex assessment would group several of the measurement metrics together. In this example, the assessment includes altitude and time at a given point, track miles flown and fuel burn. One recent large-scale project required the use of both a medium category aircraft simulator (Boeing 737 type) and a heavy category (Boeing 747 type). Example 2 details an assessment of three different arrival profile proposals and Table 7 - 2 reflects the data gathering exercise for the Boeing 747 runs.
OPTION A AFC TP 1 END D/W FAWP LANDING FUEL BURN TOTAL FLIGHT TOTAL ROUTE
N57 35.0 N57 44.0 PT R074
E00155.0 E002 56.7 D11.9 TIME LENGTH
11000 11000 KGS MINS/SECS NM
11000 11000 6295 3986
FUEL 8020 7299 721
ELAPSED TIME 0:00 6:09 14:07 17:15 21:02 21:02
TRACK NM 0 35.1 76.4 90.3 102.3 102.3
OPTION B AFC RER MELPO FA LANDING FUEL TOTAL TOTAL
PRMR134 PT R074 BURN FLIGHT ROUTE
D10.0 D18.0 TIME LENGTH
11000 11000 9000 5000 KGS MINS/SECS NM
11000 10977 9000 4984
FUEL 8014 7195 819
ELAPSED TIME 0:00 5:40 11:40 18:15 23:59 23:59
TRACK NM 0 40.9 71.8 101.9 116.9 117
OPTION C AFC EM DESC PT FA LANDING FUEL TOTAL TOTAL
PT R163 PT R074 BURN FLIGHT ROUTE
D17.2 D12.0 TIME LENGTH
11000 11000 KGS MINS/SECS NM
11000 11000 10605 3983
FUEL 8028 7324 704
ELAPSED TIME 0:00 5:24 8:55 15:20 19:40 19:40
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