AWOPS Jeppesen

What is the Jepp procedure design Gradient (PDG) for departure?

- 3.3% - Based on 2.5% gradient clearing critical obstacles and an additional 0.8%. - Note that Jepp is not a performance limitation, just a design gradient.

What is the difference between a racetrack/reversal and Holding pattern?

- A racetrack pattern forms part of an approach procedure. - A holding pattern does not form part of an approach procedure and is smaller than a racetrack procedure. - Racetrack and holding procedures have different minimum speeds.

Where can you find rescue and fire fighting requirements?

- Airport Directory section of jeep.

Effect of weight on V1? What is a dry or wet V1?

- If field length limited, V1 will decrease with increase in weight as need more brake application is required to bring aircraft to a stop and therefore want a lower speed. - If not field length limited, V1 will increase with increase in weight. - A dry V1 is a maximum V1 on a dry, uncontaminated runway. - A wet V1 is a minimum V1 on a wet/contaminated runway. It is the max speed to abort a take-off. A wet V1 improves the stopping capability to a dry v1 level. Suggested wet V1 is the dry V1 - 10kts.

What is a VMC approach?

- May only be requested by pilot - IFR flight plan cancelled, VFR flight plan further - VMC conditions - Own terrain and aircraft separation required.

Vmcg?

- Minimum control speed ground. - Lowest speed at which the take-off can be safely continued following an engine failure. Below Vmcg must close both power levers and reject take-off to maintain directional control.

TODR?

- Take-off Distance Required (All engines operating) Distance from start of take-off to accelerate to Vr, then initiate a climb to 35' maintaining V2. - The whole distance has a safety factor of 15%. (115% of the take-off distance required) - Also assumes engine failure after V1 can continue and reach 35' above runway or clearway.

Why use balanced field calculations?

- The purpose of balanced field calculations is to optimize the V2 climb performance. - Second Segment climb performance.

Explain V1 - V4?

- V1 - Decision Speed, in event of engine failure at or before V1 to safely reject the take-off and stop in the ASDA, or above V1 to continue the take-off safely following an engine failure and achieve V2 by the screen height. - VR - Rotation speed - V2 - Take-off Safety speed. Achieved at 35ft screen height in event failure can maintain directional control and climb performance. - V3 - All engines operative take off climb speed at the screen height (i.e. flap retraction speed) - V4 - All engines operative steady climb speed aircraft will achieve at 400'

Vat?

- Velocity at threshold - Indicated airspeed at crossing threshold for landing. 1.3 x stall speed in landing config. (VAT = VSO x 1.3)

What is the difference between V2 and Vmca?

- Vmca must be less than V2. Normally V2 is equal to or greater than 1.1 x Vmca.

What is the holding speeds required for PANS -OPS and where can it be found in the jeppesen?

0 - 14000ft 230kts (1) / 170 kts (Cat A/B only) / 280 Kts (2,4) 14000 - 20000ft 240kts (3) / 280kts / Mach 0.8 whichever is less (2,4) 20 001ft - 34 000ft 265 kts (3) / 280 kts / mach 0.8 whichever is less (2,4) 34 001 and above Mach 0.83 1 - When hold followed by app that is at higher speed fly the higher speed 2 - Only used with prior ATC permission 3 - When possible 280kts use when associated with airway route 4 - Turbulent conditions Can be found in ATC pages of jeep in the 200 series. We use pans ops in SA.

Under part 91 when is no destination alternate required?

1. Destination is isolated, provided: - PNR is calculated - PNR is not passed unless weather indicates a safe landing, carrying fuel for 2 hours additional. 2. The flight is short enough that is is certain that: - VMC landing will be possible - 2 runways, closure of one will not affect the other - 1 runway has instrument app.

Where in the Jepp can you find approach lighting intensities and lighting for airports? and what is it based on?

- Airport Directory section. - It is based on the width and length of the largest aircraft the airport can accommodate.

Vp?

- Aquaplaning speed

Define a Clearway?

- Clearway is an area 75m wide on Take-off side of runway centreline and no more than 1.25% upward slope that is under the control of the airport and may be used as part of the TODA. - No more than 50% may be used from lift-off to 35' as TODA.

What does the word "Shuttle" mean?

- Descend or climb in a hold.

What is EMDA / ASDA?

- Emergency distance available / Accelerate stop distance available. - Length of runway + stopway

What is EMDR / ASDR?

- Emergency distance required / Accelerate stop distance required. - Distance from start of Take-off to V1 at which point engine failures and take-off aborted and bring the aircraft to a stop on the ground. - Whole distance normally factored by 10% safety margin.

What is EAT?

- Expected approach time. - The time ATC expects an arriving aircraft following a delay to leave the hold and commence an approach. (Delay of 10min or more)

Vfs?

- Final segment speed (4th segment of climb)

What is the effect of a contaminated runway on V1?

- For a given weight, the V1 is reduced due to reduced braking capability and requires a greater distance for ASDR. - Contaminated runways cause slower acceleration ad therefore use more runway. TORR increased.

Explain what is NET and GROSS Climb gradients?

- Gross is the flight path flown by test pilot. - Net is the flight path flown by average pilot technique and factors in atmospheric changes. Net is gross climb gradient reduced by 0.8% for 2 engines and 1.0% for 4 engines.

Define a stopway?

- It is a length of unprepared surface at the end of the runway in direction of the take-off that can support aircraft weight if the aircraft has to stopped during the take-off run.

What is the Maltese cross?

- It is the final Approach fix. - Point where glideslope intercepted on ILS. - Mandatory reporting point. - Glideslope check altitude on non-precision approach.

What is reference zero?

- It is the ground point at the end of the take-off distance below the screen height.

Vle?

- Landing gear extended speed.

Vlo?

- Landing gear operating speed / Lift off speed.

Va?

- Manoeuvring speed. - Max speed for abrupt control manoeuvres. - No full control movements. - Max elevator deflection will cause stall.

Vmbe?

- Max brake energy speed. - Max speed for brake application.

What is the importance of the Final approach fix?

- On a precision approach it is where the intermediate altitude intersects the glide path. - On a non-precision approach, it is the maltese cross - Optimum distance 5nm, not more than 10nm. - It is also the altitude cross check height and compulsory reporting point.

What is OCT?

- Onward Clearance time. - Time ATC expects an aircraft to leave a hold, following a delay and continue en-route.

What is the screen height for prop aircraft and for jet aircraft?

- Propeller aircraft is 50ft. - Jet aircraft is 35ft.

Vso? Vs Vimd

- Stalling speed landing config - Stalling speed clean config - Min drag speed

TORR?

- Take-off Run Required. (All engines operating) - It is the length from start of take-off to point where aircraft reaches unstick speed/rotates (Vr) PLUS 1/3 of airborne time to screen height. - This whole distance then has a safety margin imposed of 15%

TODA?

- Take-off distance Available (All engines operating) - Runway length over which aircraft must reach 35ft. Usable runway length available plus clearway length available and aircraft must reach height of 35' at a speed of V2

TORA?

- Take-off run Available (All engines operating) - Is the unstable length of runway available for the ground run for take-off. (Physical length of runway)

What is balanced field?

- This is when the distance for an aircraft to accelerate for take off to V1 experience an engine failure, reject and bring the aircraft to a stop and the distance for an aircraft to experience a failure at V1 and continue a take-off is the same. - A balanced field length determines the MTOW. - TODA = ASDA Assume that the clearway ends at the end of the stopway, distances are equal. - If the TODA is longer than the ASDA then the field is unbalanced.

What is the relationship between V2 and Vs?

- V2 is equal to or greater than 1.2 x Vs.

What is the hold timing on the outbound?

0 - 14 000ft = 1minute 14 000ft above = 1min 30 seconds.

What should you do if you are 3rd Segment Obstacle limited? (3 options)

1 - Extended V2 climb technique 2 - Reduce T/O weight 3 - Flight path climbing turns to avoid obstacles.

What should you do if you are 2nd Segment obstacle limited? (4 options)

1 - Increase T/O flap (within t/o flap range) 2 - decrease T/O weight to achieve climb performance 3 - Use increased V2 technique (Maintain T/O weight) 4 - Use max angle of climb profile

Under part 135 when is no destination alternates required?

1. When destination is isolated provided: - Standard app available 2hr before ETA - Weather indicates 2hr before ETA at destination that cloud base 1000ft above minima and vis 5.5km or 4km above minima (Whichever is greater) 2. When the destination meets the following requirements: - 2 separate runways, closure of one will not affect the other. - Each runway has straight in app - Weather indicates landing in VMC 1hr before and after ETA.

When is 2 alternates required?

1. When no weather report available for destination. 2. Weather forecasted is below landing minima for 1hr before and after. An area forecast is then also required and the QNH.

Explain the 4 Segments of the climb?

1st Segment 35ft to Gear retraction, positive ROC, V2 speed 2nd Segment Gear-up to acceleration for flap retraction, 2.4% (2engines) and 3.0% (4 Engines) Net climb Gradient required. (FAR 25 Certification) 3rd Segment Acceleration for flap retraction. Assumed at min 400' and max 1000'. Speeds flown according to AFM recommended. Jepp departure design assumes 1% climb maintained during level flight. 4th Segment Flaps retracted climb out to 1500'. Climb gradient of 1.2% Max continuous thrust/Venr/Vyse Additional factors: - 35ft clearance vertically -90m clearance horizontally - T/O flight path assumes engine failure after V1 -Fmp climb = Gradient x Groundspeed

What is the VMC requirements for take-off, approach and landing?

5 km vis, 1500 ft ceiling

What is the VMC requirements for en-route below 10 000ft?

5 km vis, 1500m horizontally from cloud, 1000 ft vertically from cloud

What does EDTO stand for?

Extended diversion time operations

What is the communications failure procedure?

1. If on a SID, comply with SID comms failure procedure. 2. If in VFR flight plan -Transmit blind, Squawk 7600, continue in VMC, Landing lights on, land at nearest suitable airfield. Join overhead 1000ft above circuit, then downwind & land. 3. If IFR Flight plan (Transmit blind, Sq 7600) - If in VMC, Complete VFR comms failure. - If airspace has ATS with radar, Climb and maintain last assigned FL & Speed for 7minutes, Timing starts when reached level, squawked and missed compulsory reporting point. Proceed as per flight plan to destination. - If airspace has ATS with NO radar, Climb and maintain last assigned flight level & speed for 20Minutes, timing starts when fail to report over compulsory reporting point, proceed as flight plan to destination. 4. Once overhead destination, hold, commence decent at ETA or EAT if received and acknowledged, fly approach, Land within 30min of commencement of descent. 5. If loose comms on approach and have been cleared for the approach, continue approach and land.

What 6 factors must be fulfilled to allow the take-off RVR to be reduced to 125m (CAT A,B,C) and 150m (CAT D)?

1. LVP's in force 2. High intensity centreline lights 15m apart 3. High intensity edge lights 60m apart 4. Flight crew appropriately trained 5. 90m visual segment from cockpit 6. The required RVR is available at all RVR reporting points.

What is required to commence a REDUCED visibility take-off?

1. LVP's in force 2. High intensity centreline lights spaced 15m apart 3. high intensity edge lights spaced 60m apart 4. 90m visual segment available from flight deck at start of roll. 5. Required RVR for take-off as shown on airport chart has been reported at all relevant RVR reporting points.

Define: 1. MOCA 2.MORA / GRID MORA 3.MEA 4. MSA

1. MOCA - Minimum obstacle clearance altitude 1000' clearance below 5000', 2000' clearance above 5000', 5nm each side of centreline, defined with a "T" on charts. 2. MORA - Minimum off route Altitude 1000' clearance below 5000', 2000' clearance above 5000', 10nm either side of route centreline, Defined with the suffix "a" on charts. Grid mora is within lats and longs, below 10000ft shown as green, above 10 000ft shown in red. 3. MEA - Minimum en-route altitude Exactly the same as moca with no suffix. 4. MSA - Minimum safe/sector altitude. within 25nm of an airfield, 1000ft clearance ICAO, 1500ft clearance SA.

What is the max RVR that is reported?

2000m

When calculating MTOW and TODR, how much headwind tailwind may you factor in?

50% headwind, 150% tailwind.

If SLP are not published, what is the max speeds on a STAR?

50DME - 250kts 15DME - 210kts

What is the VMC requirements at or above 10 000ft?

8 km vis, 1500m horizontally from cloud, 1000 ft vertically.

What is the minimum RVR for an aircraft that can not performance comply?

800m

Definition of adequate and suitable aerodrome?

Adequate aerodrome: - licensed aerodrome or equivalent to safety requirements - has necessary services required i.e. ATS - Sufficient lighting, communications, weather reporting, navaids, and emergency services. Suitable aerodrome: - Adequate aerodrome with weather reports/ forcasts indicating conditions above applicable minima. - Opperational approach aids.

What is an approach Ban? and what is the purpose of an approach ban?

An approach ban is when a pilot may not commence or continue an approach past a certain point if the RVR or Vis is below applicable minima. The purpose is to prevent crew from attempting an approach when a landing is highly unlikely, it improves safety. An approach ban states that you may commence an approach regardless of the RVR or Vis, but may not continue past the FAF OR 1000' on non-precision OR Where no FAF exists, when final course intercepted if the RVR/Vis drops below minima. Can continue to DA/MDA if: 1. After already passing the FAF or equivalent position the RVR falls below minima. 2. On a training flight and landing not intended. 3. RVR varies above and below minima. When have no RVR, can derive it from the vis using table. When have no FAF, pilot must decide to continue or go around before 1000' on final approach segment.

What is the en-route holding TIMES up to and above FL140?

At or below FL140 - 1min outbound timing FL140 and above - 1min 30sec outbound timing.

What is SLP on a STAR, what does it look like?

Speed Limit Points Gray shaded box.

Where can you find approach ban in the law and in Jepp?

CAR 91.07.25 EU-OPS ATC 600 series pages and can find the differences for each country in the ATC pages under state differences.

What is the general approach minima for CAT I/II/III approaches?

CAT I - DH 200', Vis 800m, RVR 550m CAT II - DH 200'-100', RVR 350m, a visual reference of at least 3 runways lights CAT IIIA - DH 100'-no decision height, RVR 175m CAT IIIB - DH 50'-no decision height, RVR 175m-50m, visual reference of at least 1 runway light. CAT IIIC - No DH, no RVR, No visual reference required.

What is the enhanced weather requirements under part 91 for destination alternate?

CAT II / III: CAT I minima CAT I: Non precision app minima and ceiling above MDH Non-Precision app: Non-precision minima +200ft on MDH and + 1000m on vis/RVR.

What is the classes of airspace in South Africa? Explain the differences?

Class A, C, F, G A - Controlled airspace FL200 and above. IFR only C - Controlled airspace below FL200. IFR & VFR. - IFR separated from all traffic, VFR from IFR. F - Advisory air routes. IFR & VFR - IFR separated from IFR, No VFR separation. G - Information airspace, no services.

When is an en-route alternate required?

When failure of crit engine or system will require a diversion. when using decision point fuel planning. When operating under EDTO. The weather requirements for en-route alternate is the same as for destination alternates.

When is no take-off alternate required?

When the weather is above landing minima at departure airfield.

Vmu?

- Minimum demonstrated unstick speed. - Min speed at which it is possible to get airborne on all engines and climb out. When nose whee lifted. - Vr cannot be less that 1,05 Vmu/Vmca

What is a visual approach?

- Must have visual reference of terrain - IFR flight plan remains active - The ceiling must be at or above the initial approach altitude - within 25nm - RVR of 1500m required - Separation from traffic provided but not from terrain.

Can V1 be greater than Vmbe and what should you do if it is?

- No V1 must be lower than Vmbe for take-off. - Should V1 be greater than Vmbe for a certain weight, then the aircraft T/O weight must be reduced until V1 is lower than Vmbe to ensure the aircraft does not exceed its max brake capability. - Therefore Vmbe can limit V1 and MTOW.

Vef?

- Speed at which critical engine is assumed to fail.

What is the enhanced weather requirements under part 135 for destination alternate?

1. If have an instrument app on only 1 runway end: Ceiling minima + 400ft Vis minima + 1500m 2. If have instrument straight in app on 2 runway ends: Ceiling minima + 200 ft Vis minima + 800m 3. If have instrument app on 2 runway ends and one is a CAT II / III Min ceiling for CAT II 300ft Min ceiling for CAT III 200ft Min RVR for CAT II 1200m Min RVR for CAT III 550m

What is required to commence a CAT II/III approach?

1. Lighting facilities sufficient 2. LVP's in force 3. All flight deck crew qualified for low vis ops.

Under Part 135/121 Net take-off flight path at what alt may turns be initiated and by how much bank?

No turns below 50ft. Max 15' bank below 400' Max 25' bank above 400'

Define Radar Control, Radar Identified, Radar Vectors?

Radar Control Under the control of ATC, they will provide traffic and terrain clearance. Radar Identified / Radar Contact Means you are identified on their radar screen and will receive traffic information but must maintain own separation from traffic and terrain. They are simply monitoring the aircraft. Provides min aircraft separation of 5nm. Radar Vectors ATC wants to alter your flight path and will provide traffic and terrain clearance on a specific path assigned to you.

What is the definition of a wet runway?

Sufficient moisture on runway to cause it to be reflective but no standing water. Less than 25% covering runway.

What is an extended V2 climb and why used?

Extended V2 Climb is when the 2nd segment climb is: 1 - Extended to highest possible level-off alt which can be obtained with Max T/O thrust on operating engines for max time allowed (Normally 5min). Then acceleration and flap retraction occurs. OR 2- Extended to an unlimited height with Max continuous thrust instead of max T/O thrust that allows the aircraft to meet the required climb gradient performance. Extended V2 climb is used in the second segment by jet aircraft. It is used to clear distant obstacles in the 3rd segment which may be higher than the level acceleration altitude of 400' - 1000'. It may only be used to clear the last obstacle in the flight path in order for normal 3rd segment to be resumed.

What does the large arrow on a plate represent?

Highest point on plate.

what weather is required at the take-off alternate?

Weather 1 before and after above landing minima.

When will you state mayday mayday fuel?

When usable fuel remaining indicates that the pilot will land with less than min fuel reserves.

Vmca?

- Minimum control speed air. - Min speed at which steady flight can be maintained with critical engine inop, max power on live, 3-5' bank to live, and max rudder application at MTOW

What is the taxi speed with LVP's in force?

10kts taxi speed

On the George ILS plates, why is one DA lower than another?

Because of the approach lighting facilities onto one runway.

Define LVP?

Low Visibility Procedures - These procedures are instituted by ATC. - Lowest RVR is less than 600m - Cloud ceiling at or below 200ft. - LVP take-off conducted in vis less than 400m LVP are in place to simply CAT II and CAT III operations. LVP's protect the localiser sensitive area (LSA) during low vis conditions. The LSA is a rectangle 150m either side of centreline, from localiser to beginning of the runway. LVP's protect the LSA by limiting movement in the area. The procedures state that no one my infringe on the LSA when: 1. Approaching aircraft is 10nm from touchdown until vacated LSA. 2. Departing A/C has commenced take-off until airborne and passed the localiser aerial. Mainly CAT II and CAT III operations. Must hold at CAT II/III holding points for take-off sequence.

If no PANS-OPS symbol on plate, what is the plate designed according to?

Max TAS 150kts Omnidirectional wind speed of 60kts normally has an obstacle clearance limit (OCL)

What is the IF Fuel requirements?

Minimum fuel for flight: 1. Taxi 2. Trip 3. Contingency 4. Alternate 5. Additional 6. Discretionary 7. Final reserve Further explained: 1. Taxi Fuel for APU, Start, taxi 2. Trip Take-off, climb to initial cruising alt, cruise, descent, approach, land at destination. 3. Contingency This is to compensate for: deviations of actual aircraft fuel consumption, deviations in weather, deviations of planned routing, traffic delays. Contingency must be: - 5% of planned trip fuel OR - as approved in company manuals when using route alternates - As approved in company manuals based on fuel consumption monitoring programs - NO LESS THAN 5 min fuel at holding speed 1500ft above destination. 4. Alternate Sufficient for missed app from MDA to missed app alt, flying complete missed app procedure, climb to cruising alt, cruise, descent, app and landing at alternate. If two alternates required, must use fuel calculations for furtherest alternate. If have no alternate, carry fuel for hold for 15min at 1500ft above destination. 5. Additional This is only required if planned fuel is not sufficient to cover a possible engine failure/loss of pressurisation at critical point en-route. Additional fuel to be sufficient for descend as required to adequate airfield, hold for 15min at 1500ft, app and land. 6. Discretionary At PIC's discretion 7. Final Reserve fuel - Piston engines, fly for 45min - turbines, 30min at holding speed at 1500ft Final reserve calculated over alternate airfield. If destination isolated must carry 2 hours additional fuel for turbines. (Final reserve is included into the 2 hours). Decision point fuel planning: (Contingency fuel reduced) 1. Require 5% from decision point to destination 2. 3% contingency from departure to en-route alternate via decision point. (Require whichever is the greater of the above) Pre-determined point procedure fuel planning: 1. Fly via pre-determined point for diversion to alternate. Require 2 hours additional fuel as per isolated procedures 2. Carry trip fuel to alternate and not destination via pre-determined point. Contingency fuel to alternate is then planned. No alternate fuel required.

What is a contaminated runway?

More than 25% of the runway is covered with water 3mm deep, slush or snow.

What does RVSM mean?

Reduced vertical seperation Minimum. Reduction in vertical separation between FL290 - FL410 from 2000' to 1000'.

What is RVSM?

Reduced vertical seperation minima. Reduction in vertical seperation between aircraft between FL290 - FL410 from 2000' to 1000' An aircraft may only fly in RVSM airspace is specifically equipped with certain altimeters and autopilot and the operator must be approved. May not fly more then 1000fpm climb when approaching FL. Crew must have completed training and be endorsed in logbook for RVSM airspace.

What is SLOP and what does it stand for?

Strategic lateral off set procedure. It is an en-route high altitude procedure, whereby an aircraft is offset or adjusts course 1,2 nm off the actual airway. The off-set is to the right. Used to reduce risk of collision in RVSM airspace should aircraft change flight levels and to reduce high alt wake turbulence.

What is the difference between PANS-OPS, PANS-OPS 3 and PANS-OPS 4?

The difference is mainly their holding speeds. We use PANS-OPS holding speeds in SA. The difference between PANS-OPS and PANS-OPS 3 id their holding speeds and the difference between those and PANS-OPS 4 is that PANS-OPS 4 does not have an acceleration segment after take-off. If you fly PANS-OPS 4 the acceleration segment should be delays until clear of all obstacles. Regardless of what Pans-ops edition is printed on the plate, pilot must check the holding speeds for each country.(At the back of ATC pages)

A departure requires a turn at 300" due to terrain, can you fly the departure?

There is various factors to consider: 1. Company procedures, does the company procedures limit any turns below a certain altitude. 2. Then you need to check the Take off weight for departure regarding the obstacle accountability area and aircraft performance also taking into consideration the current weather conditions. All aircraft NET flight path shall clear all obstacles by 35ft vertically and 90m horizontally + 0.125 x distance horizontally. To be able to clear all obstacles as mentioned above you must determine the area to be taken into consideration. Obstacle Accountability Area The obstacle accountability area starts at the end of the take-off distance available, has a width of 90m each side of centreline and increases by 0.125 x distance. - up to 300m: track change of less than 15' in VMC by day or nav accuracy good enough in IMC / night - up to 600m: track change of more then 15' in VMC by day track change of less than 15' and nav accuracy not good enough - up to 900m: track changes of more than 15' in IMC or night.

What is Increased V2 and when is it used?

This is when you increase the V2, increase of speed gives increase in lift and therefore greater obstacle clearance. To increase the V2 must increase the the Take-off distance required, i.e. higher Vr and higher V2. OR can decrease the weight. The increased V2 method may only be used if the take-off weight not airfield length limited. This method is used to achieve obstacle clearance without reducing the take-off weight and to allow higher take-off weights. Use of increased V2 NOT permitted on wet runways.

What is the equipment called that measures RVR?

Transmissiometer.

What happens to your V speeds on a contaminated runway?

V1 will be decreased due to decrease in braking co-efficient. Greater ASDR. Ability to stop decreases therefore V1 decreases. AGDR will increase due to reduced V1. (You will need to accelerate from a slower speed on one engine)

Can any pilot take-off with a minimum vis of 150m?

Yes provided, 1. Stated as min vis required on chart 2. LVP's in force 3. Operator has established procedures

When you are cleared for an approach, can you descend to the Initial Approach Altitude?

Yes you may and when you are cleared for a visual approach.

If RVR is not available for the initial part of the take-off, can you still depart?

Yes, the initial part of the take-off roll can be replaced with pilot assessment and it is determined by the PIC that the actual conditions are above the applicable minima.

How far away may the take-off alternate be for single engine, 2 engines, 3and 4 engines?

single engine - 20 min 2 engines - within 1hr single engine cruise 3/4 engines - within 2 hr all engines cruise

When will you state minimum fuel?

When you are committed to land at an aerodrome, and should any changes occur, you will land without min reserve fuel.