Key Technical Deltas & Mission Envelopes
-4,600 kg
Bombardier CRJ700 (34,000 kg) vs Embraer E170 (38,600 kg). Structural maximum weight dictates certified runway length requirements and navigation airspace fee calculations.
-362 km
Bombardier CRJ700 reaches 3,620 km, while Embraer E170 achieves 3,982 km under mandatory ETOPS reserve fuel rules.
+0 seats
70 passengers aboard Bombardier CRJ700 compared to 70 in Embraer E170, governing revenue seat-kilometer generation and cabin aisle ergonomics.
-2.8 m
23.2 m (Bombardier CRJ700) versus 26 m (Embraer E170), governing ICAO Aerodrome Reference Code gate docking boundaries.
| Aeronautical Metric | Bombardier CRJ700 | Embraer E170 | Comparative Delta |
|---|---|---|---|
| Maximum Takeoff Weight (MTOW) | 34,000 kg | 38,600 kg | -4,600 kg |
| Maximum Payload Range | 3,620 km | 3,982 km | -362 km |
| Wingspan Geometry | 23.2 m | 26 m | -2.8 m |
| Typical 2-Class Passenger Seating | 70 seats | 70 seats | +0 seats |
| Transonic Cruise Speed | Mach 0.78 | Mach 0.78 | 0.00 |
Aerodynamic Architecture & Propulsion Metrology
Aerodynamic Efficiency & Wing Planform Optimization
When contrasting the Bombardier CRJ700 against the Embraer E170, aerodynamic configuration represents the primary determinant of transonic cruise efficiency. The Bombardier CRJ700 exhibits a wingspan of 23.2 meters with optimized wing sweep, designed to delay Mach shockwave formation across the upper airfoil surface. In comparison, the Embraer E170 features an aerodynamic span of 26 meters, engineered with specialized wingtip devices to attenuate induced vortex drag. Modern high-aspect-ratio wing designs lower fuel consumption by preserving laminar boundary-layer flow and mitigating drag-divergence Mach penalties during long-range cruise regimes at FL350 to FL410.
Supercritical aerofoil sections delay boundary layer separation at transonic Mach numbers, flattening the upper wing pressure distribution to minimize wave drag. Computational fluid dynamics (CFD) optimizations across both airframes govern lift-to-drag ratios during high-altitude cruise, directly translating to thousands of kilograms in fuel burn divergence across typical 5,000 nautical mile mission profiles. Aerodynamic wing-to-body fairings smoothly blend fuselage contours to suppress interference drag throughout critical climb regimes.
Propulsion Architecture & Thrust-to-Weight Dynamics
Turbofan powerplant selection governs thermodynamic efficiency and operational climb gradients. The Bombardier CRJ700 utilizes General Electric CF34-8C5 (2x) engines generating 61.3 kN of takeoff thrust per nacelle, resulting in a certified thrust-to-weight ratio of 0.368. Conversely, the Embraer E170 is powered by General Electric CF34-8E (2x) powerplants delivering 63.2 kN each with a thrust-to-weight ratio of 0.334. Higher bypass ratios reduce specific fuel consumption and engine noise acoustic signatures, enabling full compliance with ICAO Chapter 14 noise standards while assuring second-segment climb gradient margins during single-engine failure scenarios.
Full Authority Digital Engine Control (FADEC) governs turbine blade thermal cycles and variable bleed valve scheduling, maximizing thermodynamic Brayton cycle efficiency. Automated thrust derate capabilities protect turbine hot sections during takeoff from sea-level runways, reducing life-limited part replacement cycles and minimizing unscheduled engine removals. Certified single-engine drift-down ceilings guarantee positive obstacle clearance over high mountain ranges during en-route depressurization or powerplant shutdown.
Certified Flight Deck Dispatch Compliance
Operating Economics, CASK & Ramp Ground Compatibility
Payload-Range Trade-Off & Available Seat-Kilometer Economics
Airline fleet planning hinges upon the mathematical trade-off between payload weight and maximum sector distance. The Bombardier CRJ700 provides a maximum structural payload of 8,530 kg alongside a maximum fuel capacity of 11,800 liters. In head-to-head route dispatch modeling, the Embraer E170 accommodates 9,100 kg of payload with a fuel volume of 11,620 liters. Cost per Available Seat-Kilometer (CASK) favors whichever airframe achieves superior structural weight fraction and lower maintenance per block hour, providing dispatch flexibility across diverse high-density stage lengths.
Revenue Seat-Kilometer (RSK) optimization requires evaluating passenger cabin comfort tiers, galley locations, and lavatory monuments. Composite airframe structures allow higher cabin humidity levels (up to 15%) and lower effective cabin altitudes (6,000 feet instead of 8,000 feet), substantially reducing passenger fatigue on long-haul missions. Underfloor cargo volume configured for standardized LD3 unit load devices (ULD) generates vital auxiliary belly-freight revenue across international long-haul corridors.
Airport Infrastructure & Ramp Ground Compatibility
Ground handling logistics and airport apron compatibility are strictly determined by physical dimensions. The Bombardier CRJ700 measures 32.3 meters in length and 7.6 meters in empennage height, demanding specific gate clearances and turnaround ground support equipment. The Embraer E170, with a length of 29.9 meters and tail height of 9.67 meters, impacts pavement loading through its certified Main Landing Gear footprint. Both airframes require careful alignment with airport jet bridge docking systems, fuel hydrant supply flowrates, and runway pavement classification ratings (PCR/ACR) under current FAA and EASA aerodrome operating directives.
Turnaround efficiency directly impacts daily aircraft utilization. Multi-wheel landing gear arrangements distribute certified gross takeoff weight across flexible and rigid pavements, preventing structural subgrade fatigue while ground servicing vehicles complete synchronized cargo loading, water servicing, and pre-conditioned air delivery.
Certified Flight Deck Hardware & Avionics Controllers
Thrustmaster TCA Yoke Pack Boeing Edition
Officially licensed 1:1 scale pendular yoke and modular throttle quadrant with authentic Boeing 787/777 reverser detents.
View Boeing Flight Deck Yoke ➔Thrustmaster TCA Captain Pack Airbus Edition
Ergonomic side-stick replica and dual-engine quadrant with operational reverser mechanism for A320neo, A321XLR, and A350 simulation.
View Airbus Sidestick & Quadrant ➔Honeycomb Aeronautical Bravo Throttle Quadrant
Universal multi-engine flight console with commercial airliner autopilot annunciator panel and configurable levers.
Explore Honeycomb Throttle Console ➔
How does the Bombardier CRJ700 compare to the Embraer E170 in flight range?
The Bombardier CRJ700 achieves a maximum certified payload range of 3,620 km (1,955 nmi), compared to 3,982 km (2,150 nmi) on the Embraer E170, a mission delta of 362 km.
Which aircraft offers higher maximum certified takeoff weight?
The Embraer E170 holds the higher certified Maximum Takeoff Weight at 38,600 kg, versus 34,000 kg on the Bombardier CRJ700.