DIY SPAM

[Capn Bloggs]

Current Perth NOTAM:

C277/15
SPECIAL ALTERNATE MINIMA PUBLISHED ON ANY INSTRUMENT APPROACH CHART IS NOT VALID DUE TO NAVAID NOT AVBL PUBLISHED BY SEPARATE NOTAM. REFER CIVIL AVIATION SAFETY AUTHORITY MANUAL OF STANDARDS (MOS 173) TO CALCULATE A REVISED SPECIAL ALTERNATE MINIMA
FROM 05 290000 TO 05 290830
1505290000 TO 1505290400
1505290430 TO 1505290830

Do I get a discount on my airnav charges when I calculate my own SPAM?

[Jabawocky]

SPAM notams now too! Spammers never give up do they.

Hey bloggs, you will have to get the FO to do some maths then. Or do you still have your slide rule? (or any other pre-calculator tools)




……..ducking for cover

[jeta108]

Close your eyes for five years open them and find nothing has changed. Who pays people these days to sit up all night writing drivel. Five years ago it was educated stupidity, now anybody can become an idiot by joining the regulator.

[alphacentauri]

That NOTAM didn't come from the regulator....

[drpixie]

Or how about this for YSSY - with that much arse covering, some people must be so well padded they can't sit down!

C1271/15 REVIEW C1232/15
OBST CRANES MARKED AND LIT AT FLW LOCATIONS:
282 FT AMSL BRG 295 MAG 1.52 NM FM ARP
249 FT AMSL BRG 021 MAG 2.35 NM FM ARP
193 FT AMSL BRG 350 MAG 2.86 NM FM ARP OBST MARKING NON STANDARD
180 FT AMSL BRG 265 MAG 1.93 NM FM ARP
837 FT AMSL BRG 000 MAG 5.05 NM FM ARP
338 FT AMSL BRG 357 MAG 3.29 NM FM ARP
454 FT AMSL BRG 241 MAG 4.20 NM FM ARP
226 FT AMSL BRG 291 MAG 1.23 NM FM ARP
243 FT AMSL BRG 313 MAG 3.06 NM FM ARP
238 FT AMSL BRG 349 MAG 2.96 NM FM ARP
249 FT AMSL BRG 025 MAG 2.43 NM FM ARP
210 FT AMSL BRG 242 MAG 2.25 NM FM ARP
207 FT AMSL BRG 025 MAG 2.43 NM FM ARP
312 FT AMSL BRG 020 MAG 3.07 NM FM ARP
289 FT AMSL BRG 017 MAG 3.09 NM FM ARP
377 FT AMSL BRG 021 MAG 3.14 NM FM ARP OBST LGT NON STANDARD
185 FT AMSL BRG 089 MAG 1.40 NM FM ARP OBST LGT NON STANDARD
312 FT AMSL BRG 061 MAG 3.19 NM FM ARP
226 FT AMSL BRG 291 MAG 1.23 NM FM ARP
328 FT AMSL BRG 238 MAG 3.90 NM FM ARP
205 FT AMSL BRG 002 MAG 1.46 NM FM ARP OBST MARKING NON STANDARD
573 FT AMSL BRG 002 MAG 4.74 NM FM ARP
545 FT AMSL BRG 035 MAG 5.15 NM FM ARP
236 FT AMSL BRG 019 MAG 2.62 NM FM ARP
205 FT AMSL BRG 017 MAG 2.70 NM FM ARP OBST MARKING NON STANDARD
382 FT AMSL BRG 050 MAG 3.74 NM FM ARP OBST MARKING NON STANDARD
184 FT AMSL BRG 288 MAG 1.40 NM FM ARP
200 FT AMSL BRG 020 MAG 2.53 NM FM ARP
171 FT AMSL BRG 348 MAG 2.58 NM FM ARP
411 FT AMSL BRG 048 MAG 3.60 NM FM ARP
255 FT AMSL BRG 295 MAG 1.55 NM FM ARP
263 FT AMSL BRG 301 MAG 1.55 NM FM ARP
205 FT AMSL BRG 000 MAG 1.38 NM FM ARP
230 FT AMSL BRG 026 MAG 2.55 NM FM ARP OBST MARKING NON STANDARD
FROM 05 150756 TO 05 290700 EST

I think I prefer the old Italian squiggly road signs that translated roughly as "Lots'a curves comin' up, use your head."

[To infinity & beyond]

MOS 173

Calculation of Special Alternate Minima. To calculate Special Alternate Minima:

(a) add 500 ft ceiling and 1.5 km visibility to the ceiling and visibility minima of the VHF runway aligned instrument approach procedure which provides the greatest advantage.

(b) add 400 ft ceiling and 1.5 km visibility to the ceiling and visibility minima of the VHF runway aligned instrument approach procedure to an alternative runway.

(c) when required by paragraph 8.1.10.3, add 300 ft ceiling and 1.5 km visibility to the ceiling and visibility minima of any other straight-in instrument approach procedure which utilises an aid other than those used in paragraphs 8.1.10.5(a) and 8.1.10.5(b) above.

8.1.10.6 The alternative minimum is the highest of those obtained above. Ceiling values should be rounded out to the nearest 50 ft. Visibility values should be rounded up to the next higher kilometre or half kilometre.

8.1.10.7 An extra margin over and above those mentioned above may be added if believed to be necessary because of peculiarities in the local weather patterns and/or difficulties in forecasting.

Might be easier to use the standard alternate minima.