The standard OEI drift down altitude gets you to 13,500 ft at max gross weight. But the B777 QRH exclusive table for high ambient temperature reveals a trap: At ISA +20°C, your drift down floor is actually 11,200 ft. Why? The engine's EGT margin collapses before thrust, but the QRH doesn't highlight this. Line pilots flying Middle Eastern routes in summer must memorize this exclusive margin; otherwise, they violate the "Obstacle Clearance" requirement unknowingly.
In many Boeing 777 QRHs, there is a dedicated tab or section labeled "Exclusive Maneuvers" (or sometimes "Maneuvers") containing procedures such as:
Note: While modern electronic checklists (ECL) on the 777 have largely replaced paper QRHs in many airlines, the "Exclusive Maneuvers" term remains a standard categorization for these memory and reference items.
"B777 QRH Exclusive" refers to a specific, high-end content feature or add-on for flight simulation enthusiasts, particularly those using advanced Boeing 777 study-level aircraft like the PMDG 777. b777 qrh exclusive
In aviation, the QRH (Quick Reference Handbook) is a critical manual containing checklists for normal and non-normal (emergency) procedures. In the context of "exclusive" flight sim features, this often includes:
Electronic Flight Bag (EFB) Integration: A fully interactive digital version of the QRH accessible on a tablet within the virtual cockpit.
Automatic Checklist Uplink: The ability for the simulation to automatically pull the correct emergency checklist based on a simulated failure. The standard OEI drift down altitude gets you
Real-World Documentation: Precise replicas of airline-specific handbooks (like those from United or Emirates) that are often restricted or hard to find.
Scenario-Based Performance Data: Exclusive calculators for takeoff and landing performance based on specific QRH non-normal configurations (e.g., landing with partial flaps). Visual Overview
These must be memorized. Test yourself:
| Condition | Immediate Action | |-----------|------------------| | Engine Fire / Severe Damage | Autothrottle (A/T) disconnect → Thrust lever (affected) idle → Fuel control switch CUTOFF → Fire handle PULL → Agent 1 (after 1 sec) → Agent 2 if needed | | Cabin Altitude Warning / Rapid Depressurization | Don oxygen masks (100%, emergency) → Establish crew comms → Passenger oxygen on → Descend to 10,000 ft or MEA | | APU Fire on Ground | APU fire handle PULL → Agent discharge → Evacuate if fire persists | | Runaway Stabilizer | Control column hold → Stabilizer trim CUTOUT (both) → If needed, Stabilizer trim MANUAL | | Loss of Thrust on Both Engines | Engine start switches FLT → A/T disconnect → Relight attempt (windmill start) |
These are not in the manual but save time: