Study Guide:Low Visibility Procedures - Revision history

Jakob Engelbrecht: /* Phraseology */

2025-10-07T21:58:05Z

Phraseology

2025-10-07T21:57:05Z

Considerations For Takeoff

2025-10-07T21:56:55Z

Procedures

2025-10-07T21:56:30Z

Considerations For Takeoff

2025-10-07T21:53:49Z

Considerations For Takeoff

2025-10-07T21:53:07Z

Sequencing On Final

2025-10-07T21:48:27Z

Phraseology

2025-10-07T21:44:52Z

Sequencing On Final

2025-10-07T13:22:49Z

Decision Making Process (LOWW)

2025-10-07T13:21:37Z

Decision Making Process (LOWW)

@@ Line 113: / Line 113: @@
 '''VATSIM vs. Real Life'''
-As the VATSIM METAR only provides one RVR Value (Touchdown Zone RVR) you may choose to add the remaining two values at your discretion. It is important, however, not to undercut the published value. The values you invent must be greater.
+As the VATSIM METAR only provides one RVR Value (Touchdown Zone RVR) you may choose to add the remaining two values at your discretion.
   "AUA26, 250 deg 6 kts, RVR 550, 500 and 650 Meters RWY 16 Cleared to land. </pre>

@@ Line 79: / Line 79: @@
 === Considerations For Takeoff ===
-*During LVP, landing TFC should only be cleared to land after the preceding aircraft has left the '''Loc'''aliser critical area. For simplification purposes, the LOC critical area shall be considered the RWY. Aircraft turning vacating, overflying the RWY end or turning before the RWY end leave the LOC critical area.
+*During LVP, landing TFC should only be cleared to land after the preceding aircraft has left the '''LOC'''aliser critical area. For simplification purposes, the LOC critical area shall be considered the RWY. Aircraft turning vacating, overflying the RWY end or turning before the RWY end leave the LOC critical area.
 *During LVP, departing TFC should be cleared for takeoff before the next inbound for the same runway is closer than '''6nm from threshold'''.

@@ Line 79: / Line 79: @@
 === Considerations For Takeoff ===
-*During LVP, landing TFC should only be cleared to land after the preceding aircraft has left the Localiser critical area. For simplification purposes, the LOC critical area shall be considered the RWY. Aircraft turning vacating, overflying the RWY end or turning before the RWY end leave the LOC critical area.
+*During LVP, landing TFC should only be cleared to land after the preceding aircraft has left the '''Loc'''aliser critical area. For simplification purposes, the LOC critical area shall be considered the RWY. Aircraft turning vacating, overflying the RWY end or turning before the RWY end leave the LOC critical area.
 *During LVP, departing TFC should be cleared for takeoff before the next inbound for the same runway is closer than '''6nm from threshold'''.

@@ Line 79: / Line 79: @@
 === Considerations For Takeoff ===
-*During LVP, landing TFC should only be cleared to land after the preceding aircraft for the same runway has passed the end of runway or left the runway either by turning or by vacating the runway.
+*During LVP, landing TFC should only be cleared to land after the preceding aircraft has left the Localiser critical area. For simplification purposes, the LOC critical area shall be considered the RWY. Aircraft turning vacating, overflying the RWY end or turning before the RWY end leave the LOC critical area.
 *During LVP, departing TFC should be cleared for takeoff before the next inbound for the same runway is closer than '''6nm from threshold'''.

@@ Line 79: / Line 79: @@
 === Considerations For Takeoff ===
-*During '''LVP Stage 2 or 3''', landing TFC should only be cleared to land after the preceding aircraft for the same runway has passed the end of runway or left the runway either by turning or by vacating the runway.
+*During LVP, landing TFC should only be cleared to land after the preceding aircraft for the same runway has passed the end of runway or left the runway either by turning or by vacating the runway.
-*During '''LVP Stage 2 or 3''', departing TFC should be cleared for takeoff before the next inbound for the same runway is closer that '''6nm from threshold'''.
+*During LVP, departing TFC should be cleared for takeoff before the next inbound for the same runway is closer than '''6nm from threshold'''.
 Deviating from these requirements is permissible if traffic levels require so.

@@ Line 70: / Line 70: @@
 Lower visibilities require enlarged separation minima on final depending on the actual conditions:
-*'''CAT II radar separation on final: 4nm'''
+*'''Landing only - radar spacing on final suggested: 5 nm'''
-*'''CAT III radar separation on final: 6nm'''
+*'''Mixed - radar spacing on final suggested: 9 nm'''
 The TDZ RVR value, as well as the wind are to be included in the clearance for the approach.

@@ Line 92: / Line 92: @@
 '''As soon as the METAR indicates an RVR value that is 1500m or less e.g: R16/1500N you are required to transmit this value'''
-In real life the controller will be provided with 3 RVR values: Touchdown Zone, Mid-Point, Stop-end. These 3 values are only transmitted once the RVR falls below 800m.
+In real life the controller will be provided with 3 RVR values: Touchdown Zone, Mid-Point, Stop-end. These 3 values are only transmitted once the RVR falls below 800m and if one of the later RVR values is less than the TDZ RVR.
 R16/'''P'''1500D '''P''' indicates an RVR value '''ABOVE''' 1500m. (It is not possible to measure an RVR greater than 1500m). RVR above 1500 meters are not to be reported, as they are '''ABOVE''' 1500m.
@@ Line 98: / Line 98: @@
 '''Approach Clearance'''
-  AUA94, cleared ILS Z Approach RWY29, RVR 550, 650, and 800 meters.
+  AUA94, cleared ILS Z Approach RWY29, RVR 650, 550, and 550 meters, wind 250 degrees 6 knots.
 '''Takeoff Clearance'''
-  AUA94, RVR 550, 650, and 800 meters, wind 250 degrees 6 knots, RWY 29 cleared for takeoff.
+  AUA94, RVR 650 meters, wind 250 degrees 6 knots, RWY 29 cleared for takeoff.
 '''Landing Clearance'''
-  AUA94, RVR 550, 650, and 800 meters, wind 250 degrees 6 knots, RWY 29 cleared to land.
+  AUA94, RVR 650, 550, and 400 meters, wind 250 degrees 6 knots, RWY 29 cleared to land.

@@ Line 73: / Line 73: @@
 *'''CAT III radar separation on final: 6nm'''
-RVR values are to be included in the clearance for the approach.
+The TDZ RVR value, as well as the wind are to be included in the clearance for the approach.
 Likewise, TWR shall transmit the latest RVR on initial contact with ACFT on approach.

@@ Line 40: / Line 40: @@
 For exact criteria refer to [[#LVP Criteria For Airports|LVP Criteria For Airports]]
-It may help to look at the TAF, whether a situation is likely to stabilize, improve or get worse. The RVR indicator also includes a letter
+It may help to look at the TAF, whether a situation is likely to stabilize, improve or get worse. The RVR indicator also includes a letter.
 *U - RVR will increase
 *N - RVR will remain like this
 *D - RVR will decrease
 == Procedures ==

← Older revision		Revision as of 13:21, 7 October 2025
Line 39:		Line 39:

	For exact criteria refer to [[#LVP Criteria For Airports\|LVP Criteria For Airports]]		For exact criteria refer to [[#LVP Criteria For Airports\|LVP Criteria For Airports]]
		+
		+	It may help to look at the TAF, whether a situation is likely to stabilize, improve or get worse. The RVR indicator also includes a letter
		+	*U - RVR will increase
		+	*N - RVR will remain like this
		+	*D - RVR will decrease

	== Procedures ==		== Procedures ==