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Merge pull request #385 from glennawatson/glennawatson/ymmb-update
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Expand YMMB Procedures
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@mattkelly4
mattkelly4 authored Jan 26, 2025
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150 changes: 105 additions & 45 deletions docs/aerodromes/classd/Moorabbin.md
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--8<-- "includes/abbreviations.md"

## Positions
| Name | Callsign | Frequency | Login ID |
| ------------------ | -------------- | ---------------- | ---------------------------------------- |
| **Moorabbin ADC** | **Moorabbin Tower** | **118.100** | **MB_TWR** |
| **Moorabbin SMC** | **Moorabbin Ground** | **134.250** | **MB_GND** |
| Moorabbin ATIS | | 120.900 | YMMB_ATIS |

| Name | Callsign | Frequency | Login ID |
|--------------------|----------------------|-------------|--------------|
| **Moorabbin ADC** | **Moorabbin Tower** | **118.100** | **MB_TWR** |
| **Moorabbin SMC** | **Moorabbin Ground** | **134.250** | **MB_GND** |
| Moorabbin ATIS | | 120.900 | YMMB_ATIS |

## Airspace
MB ADC is responsible for the Class D airspace in the MB CTR `SFC` to `A025`.
MB ADC is responsible for the Class D airspace in the MB CTR from `SFC` to `A025`.

<figure markdown>
![MB ADC Airspace](img/mbairspace.png){ width="1000" }
Expand All @@ -22,68 +23,127 @@ MB ADC is responsible for the Class D airspace in the MB CTR `SFC` to `A025`.
Refer to [Class D Tower Separation Standards](../../../separation-standards/classd) for more information.

## Runway Modes
Equal preference is given to the following runway modes:
Preferred runway modes are as follows (in order of preference):

- Runways 35L & 35R
- Runways 17L & 17R
- Runways 31L & 31R
- Runways 13L & 13R
1. Runway 35L/35R
2. Runway 17L/17R
3. Runways 13/31 (equal preference)

When operationally required, runway 04 or 22 may be used, but consideration must be given to it's limited length.
Runway 04/22 is not nominated by default and is only available on request or when operationally required for emergencies. Requests for Runway 22 may be granted if traffic conditions allow. Runway 04 is less likely to be approved due the need to vacate onto an intersecting runway.

## VFR Inbound Procedures
Aircraft should report at the standard VFR entry points:

| Direction from YMMB | Entry Point |
|-------------|----------------------|
| North | BTO |
| North East | ACE |
| East | GMH |
| South | CARR |
| South West | SHOL |
| West | BAW |

### Circuit Joining Instructions

| Entry Point | RWY 13 | RWY 17 | RWY 31 | RWY 35 |
|-------------|---------------------------------|----------------------------------|----------------------------------|----------------------------------|
| BTO | *Final* **13R** | *Oblique Base* **17R** | *Downwind* **31L** | *Downwind* or *Oblique Downwind* **35L** |
| ACE | *Base* **13L** | *Oblique Base* or *Final* **17L** | *Oblique Downwind* or *Base* **31R** | *Oblique Downwind* **35R** |
| GMH | *Oblique Downwind* or *Downwind* **13L** | *Base* **17L** | *Oblique Base* or *Final* **31R** | *Base* **35R** |
| CARR | *Oblique Downwind* **13R** | *Downwind* **17R** | *Base* *31L** | *Final* **35L** |
| SHOL | *Oblique Downwind* or *Base* **13R** | *Oblique Downwind* **17R** | *Base* **31L** | *Oblique Base* or *Final* **35L** |
| BAW | *Base* or *Oblique Base* **13R** | *Base* or *Oblique Downwind* **17R** | *Oblique Downwind* **31L** | *Base* **35L** |

| VFR Approach Point | RWY 13 | RWY 17 | RWY 31 | RWY 35 |
| ----------------| --------- | ---------- | --------- | ---------- |
| BTO | Join final 13R | Join base 17R | Join downwind 31L | Join oblique downwind 35L |
| BAW | Join base 13R | Join base 17R | Join oblique downwind 31L | Join base 35L |
| CARR | Join downwind 13R | Join downwind 17R | Join oblique base 31L | Join final 35L |
| GMH | Join downwind 13L | Join base 17L | Join oblique base 31R | Join base 35R |
| ACE | Join base 13L | Join oblique base 17L | Join base 31R | Join oblique downwind 35R |
!!! phraseology
**EWZ**: "Moorabbin Tower, EWZ, C172, approaching CARR, A015, inbound in receipt of P"
**MB ADC**: "EWZ, Moorabbin Tower, join downwind Runway 17R"
**EWZ**: "Join downwind Runway 17R, EWZ"

## Departures into CTA
The overlying Class C airspace extends down to A025 to the north and A045 to the south. Aircraft planned into the overlying Class C airspace shall be issued an airways clearance by **MB ADC** and assigned `A050` or `RFL` if lower. These aircraft must be Next coordinated to the relevant TCU controller, who will assess the current traffic picture and provide a release when able. During times of peak TMA traffic, there may be extensive delays for departure and pilots may elect to depart directly into class G. See [Departure Coordination](#departures) for coordination requirements.
VFR Pilots are expected to enter the MB CTR at `A010` as per ERSA. However, be aware that some pilots may not be familiar with this requirement.

## Circuits
Circuits are to be flown at `A010`.

| Runway | Day | Night |
| ------ | ------ | ----|
| 13L | Left | Left |
| 13R | Right | - |
| 31L | Left | - |
| 31R | Right | Right |
| 17L | Left | Left |
| 17R | Right | - |
| 35L | Left | - |
| 35R | Right | Right |
### Fixed wing
Circuit altitude: `A010`.

| Runway | Day Circuit Direction | Night Circuit Direction |
|---------|------------------------|--------------------------|
| 13L | Left | Left |
| 13R | Right | N/A |
| 31L | Left | N/A |
| 31R | Right | Right |
| 17L | Left | Left |
| 17R | Right | N/A |
| 35L | Left | N/A |
| 35R | Right | Right |

## Helicopter Operations
### Circuits
#### Day VFR Circuits
Circuit altitude: `A007`.

Helicopter circuits are conducted from designated areas based on the active runway:

- **RWY 17/35**: From the **Eastern Grass**, which encompasses all areas east of runway 35R.
- **RWY 13/31**: From the **Western Triangle**, which extends:
- From TWY A to the boundary fence,
- Up to the centerline of TWY A4,
- Then across to the edge of TWY B and runs parallel to TWY B to the boundary fence.

<figure markdown>
![Eastern Grass and Western Triangle](img/mbhelicircuitareas.png){ width="700" }
<figcaption>Eastern Grass and Western Triangle</figcaption>
</figure>

Circuit operations are conducted parallel to the duty runway and inside the fixed-wing circuit.

##### Process

- Helicopters established on the eastern grass or western triangle do not require clearance for low-level operations below `A001`.
- Pilots must report airborne before each circuit. If departing, they must include intentions. Pilots must stay below `A001` until they are acknowledged.
- Controllers provide traffic information only on initial circuits. ADC does not positively control these operations or provide sequencing.
- Acknowledge the callsign or issue departure instructions. Hold aircraft if conflicting with other traffic.
- After circuit training, pilots will nominate their landing HLS during the airborne call and report downwind before transitioning to the arrival procedure.
- ADC may additionally notify pilots of additional inbound helicopter circuit traffic affecting the eastern grass or western triangle if workload allows.

!!! tip
Where traffic permits, helicopters may be instructed to air transit to their designated areas of operations, to expedite their repositioning.

!!! phraseology
**RJB**: "Moorabbin Tower, RJB, R44, at the southern apron, with information N, request circuits"
**MB ADC**: "RJB, Moorabbin Tower, air transit Eastern Grass, report airborne"
**RJB**: "Air transit Eastern Grass, RJB"

**RJB**: "Moorabbin Tower, RJB, airborne"
**MB ADC**: "RJB"

*RJB, established at the Eastern Grass, becomes airborne for circuits*
**RJB**: "RJB, Airborne"
**MB ADC**: "RJB"

#### Night Circuits
Night operations must comply with fixed wing operations.

## Coordination
### Departures
Autorelease is not in effect at YMMB and all departures into the overlying Class C airspace require a 'Next' call. They must not be issued a takeoff clearance until a release has been obtained.

The standard assignable level for departures into CTA is `A050` or `RFL` if lower.
When the aircraft is ready for departure, MB ADC will coordinate with the relevant ML TCU controller above them for permission to release the aircraft into their CTA.

!!! phraseology
<span class="hotline">**MB ADC** -> **MDS**</span>: "Next, SGE"
<span class="hotline">**MDS** -> **MB ADC**</span>: "SGE, unrestricted"

Aircraft departing directly into Class C airspace should be instructed to report passing A025 and transferred to the TCU at that point.
The Standard Assignable level from MB ADC to ML TCU is the lower of `A050` or the `RFL`, any other level must be prior coordinated.

!!! phraseology
**SGE**: "SGE, A025"
**MB ADC**: "SGE, contact Melbourne Departures on 129.4"

Aircraft who will transit Class G airspace on climb into CTA will be **cleared to leave and re-enter controlled airspace** on climb to their assigned level.
Aircraft who will transit Class G airspace on climb into CTA must be **cleared to leave and re-enter controlled airspace** on climb to their assigned level.

!!! phraseology
**MB ADC**: "SGE, cleared to leave and re-enter controlled airspace climbing to A050, no reported IFR traffic. Contact Melbourne Departures on 129.4"
**SGE**: "Cleared to leave and re-enter controlled airspace climbing to A050, Departures 129.4, SGE"

### Arrivals/Overfliers
ML TCU will heads-up coordinate arrivals/overfliers from Class C to MB ADC.
IFR aircraft will be cleared for the coordinated approach (Instrument or Visual) prior to handoff to MB ADC, unless MB ADC nominates a restriction.
VFR aircraft will not be coordinated, and will need to receive their airways clearance from MB ADC.
ML TCU will heads-up coordinate arrivals/overfliers from their Class C to MB ADC.

- **IFR arrivals** will be cleared for the coordinated approach (Instrument or Visual) prior to handoff to MB ADC, unless MB ADC nominates a restriction.
- **VFR arrivals** will not be coordinated, and will need to receive their airways clearance from MB ADC.

!!! phraseology
<span class="hotline">**MDS** -> **MB ADC**</span>: "To the west, PLE, for the NDB-A"
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4 changes: 4 additions & 0 deletions docs/stylesheets/admonitions.css
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background-color: var(--md-default-bg-color); /* White background for the text */
}

.md-typeset .admonition.phraseology p {
/*white-space: pre-wrap; /* Preserves newlines */
}

.md-typeset .phraseology > .admonition-title {
background-color: var(--phraseology-light-bg); /* Light green background for the title */
border-color: #90EE90; /* Light green border for title */
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1 change: 1 addition & 0 deletions includes/abbreviations.md
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*[CARR]: Carrum
*[GMH]: GMH (General Motors Holden)
*[ACE]: Academy
*[SHOL]: Shoal
*[CWST]: Choppers West
*[CNTH]: Choppers North
*[CSTH]: Choppers South
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