Boeing Aircraft Systems Comparison Quiz

Differences between B787 and B767

• B787 utilizes advanced composite materials, enhancing fuel efficiency and reducing weight compared to B767.
• Major aerodynamic improvements in B787 reduce drag, translating to better range and performance.
• Electrical systems differ significantly: B787 has a fully integrated electrical system with more electrical components, while B767 relies more on hydraulic systems.
• B787's Pax O2 system offers improved efficiency and passenger comfort compared to the B767.

Limitations of B787

• Minimum required width for a 180-degree turn is dependent on aircraft dimensions and configuration.
• Caution during taxiing regarding wingtip clearance and other aircraft in proximity is critical.
• The B787 can operate on a 45m runway but requires careful management of weight and balance.
• Turbulence penetration speed should be monitored; significant reduction may be advised during severe turbulence.

Airplane General

• B787 dimensions differ from previous aircraft, with a larger wingspan contributing to aerodynamic efficiency.
• Must carry specific documents onboard according to regulations, including maintenance and flight manuals.
• Emergency equipment count in the cockpit is predefined and must be easily accessible.

Air Systems

• PECS (Pneumatic Electrical Control System) manages pneumatic systems, while ICS (Integrated Control System) oversees various aircraft systems.
• Bleed air systems affected by PECS failure can hinder performance and efficiency.
• Recent air conditioning issues include temperature control failures in specific scenarios.

Anti-Ice and Rain

• Wing anti-ice power source derives from engine bleed air, with protocols for OAT below -7°C.
• After 60 minutes on the ground, specific checks and system configurations must be performed.

Automatic Flight

• Autopilot limitations vary by flight phase, with specific disengagement altitudes below 1500ft.
• Auto land capabilities are available, with careful management required during IAN approach.
• Use of VNAV mode requires understanding of descent and approach profile changes.

Communications

• Multiple PTT (Push-to-Talk) buttons are installed for effective communication, ensuring redundancy.
• Threat assessments for TCP design focus on communication lapses during critical phases.

Electrical Systems

• Transition of hydraulic systems to electrical systems has enhanced reliability but introduces specific threats.
• The design incorporates changes post-battery incidents, enhancing safety protocols.
• Main and APU batteries are crucial for system operations; failure indicators are vital for crew awareness.

Engines and APU

• B787 engines utilize state-of-the-art technologies for efficiency and performance.
• Manual engine starts are possible under specific circumstances; procedures for autostart failures are defined.

Fire Protection

• Fire protection systems differ in configuration for in-flight and ground operations, enhancing safety protocols.

Flight Controls

• Fly-by-wire technology streamlines control inputs and system responses.
• HUD (Head-Up Display) offers critical flight path information and aids in situational awareness.

Flight Management and Navigation

• IRS limitations must be understood for accurate navigation.
• Data sources for various flight instruments must be cross-referenced for ensuring operational integrity.

Fuel Management

• Fuel usage limitations and prohibited types must be adhered to, including cross-feed operations.
• Fuel imbalance procedures are critical for maintaining aircraft stability.

Hydraulics

• The B787's hydraulic system is unique, featuring distinct operational modes for various components.
• RAT (Ram Air Turbine) deployment procedures and functionality are vital in emergencies.

Landing Gear

• The braking system operates automatically under certain conditions, with backup sources defined for emergencies.

Warning Systems

• B787 features multiple protective systems, including stall protections and windshear alerts.
• EICAS messages categorize warnings, with time-critical alerts requiring immediate action.

Maneuvers

• Specific procedures for windshear escape maneuver must be memorized and practiced for emergency situations.

Procedures

• Comprehensive pre-flight checks ensure readiness for departure, with deviation calls specified for approaches.
• Involves specific protocols for engine failure and volcanic ash encounters during flight.

Performance

• Performance characteristics define V1 speeds, with optimum V1 offering benefits but also associated threats.
• Effective management of performance metrics is crucial for successful flight operations.

Test your knowledge on the differences between the Boeing 787 and 767 aircraft. This quiz covers various aspects including electrical systems, limitations, and the passenger oxygen system. Dive in and see how familiar you are with the unique features that distinguish these two models.