Text instructions:
From AVNAT track 231 to 10 000. Turn left at or above 10 000 direct to LIMES. […]
The depiction is technically correct, but does seem a bit (overly) conservative/pessimistic as to when the aircraft will reach 10 000 feet MSL.
It appears that even a very heavy A321 should usually be able to reach 10 thousand by AVNAR (quick testing using Simbrief), so the climb performance model used by NG Charts may need some fine-tuning.
Regards,
Tim.
Thanks for the report, we’ll take a look into this.
Edit: the transition instructions are present on AIP New Zealand
https://www.aip.net.nz/assets/AIP/Aerodrome-Charts/Auckland-NZAA/NZAA_62.01_62.02.pdf
And here an example Simbrief plan where the A321 (known as a somewhat slow climber), taking off at over 89 tons (reasonably close to MTOW) can seemingly reach 10 200 feet MSL by AVNAR:
NZAAYMML_PDF_1777930936.pdf (90.8 KB)
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AWY FL IMT MN WIND OAT EFOB PBRN
POSITION LAT EET ETO MORA ITT TAS COMP TDV
IDENT LONG TTLT ATO DIS RDIS GS SHR TRP AFOB ABRN
FREQ
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052 23.0 0.3
AUCKLAND IN S3700.5 ... 26 072 M010
NZAA E17447.5 0000 ... 1474 253 .... ....
AVNAR2Q 034 141 .40 034/013 09 22.6 0.7
ADKUM S3658.5 0002 ... 26 160 M010 P01
ADKUM E17455.0 0002 ... 6 1468 253 384 .... ....
AVNAR2Q 055 230 .41 017/015 06 22.6 0.8
TAVEB S3702.6 0001 ... 24 250 P012 P02
TAVEB E17456.8 0003 ... 4 1464 284 384 .... ....
AVNAR2Q 065 230 .42 025/014 06 22.5 0.8
OLBUM S3703.3 0000 ... 22 250 P010 P04
OLBUM E17454.5 0003 ... 2 1462 287 384 .... ....
AVNAR2Q 102 172 .54 035/012 03 22.3 1.0
AVNAR S3705.6 0001 ... 31 191 P010 P08
AVNAR E17446.0 0004 ... 7 1455 366 384 .... ....
The altitudes in the Simbrief climb logs are not always particularly accurate (as mentioned by Derek here and on the old Simbrief forums back in the day), but it still shows that it’s reasonable for most jets to reach 10 thousand near AVNAR (and probably in many cases, before the waypoint), as opposed to miles (and miles) away like Navigraph’s visual depiction suggests.
Hence why I think perhaps the climb predictions in Navigraph Charts should be fine-tuned a little.
Regards,
Tim