whyaviationAircraft photo archive
Menu
Home/Encyclopedia/COMAC/COMAC C909 / ARJ21 Family Fuselage and Cabin Architecture

Component

COMAC C909 / ARJ21 Family Fuselage and Cabin Architecture

COMAC C909 / ARJ21 Family fuselage design defines the usable cabin width, door layout, cargo volume, stretch potential, and airline cabin flexibility across C909 / ARJ21-700, ARJ21-700, C909.

01

Overview

COMAC C909 / ARJ21 Family fuselage design defines the usable cabin width, door layout, cargo volume, stretch potential, and airline cabin flexibility across C909 / ARJ21-700, ARJ21-700, C909.

Advantages

  • Supports regional connectivity in China.
  • Domestic support ecosystem is important for Chinese airline networks.
  • C909 branding helps align the aircraft with COMAC's newer naming system.

Limitations

  • International operator base is limited.
  • Cabin and route economics are closer to regional jets than larger single-aisle aircraft.
02

Identification

Key terms

Technical features

  • Connects model suffixes, airline maintenance strategy, and performance limits.
  • Important for aircraft identification and fleet comparison.

Advantages

  • Helps explain range, payload, noise, and fuel-burn differences.

Limitations

  • Public data may omit thrust derates or later engine swaps.
03

Related entries

04

Technical notes

Technical notes

  • Cabin layout is airline-specific and should be checked against seat maps before quoting exact F/J/W/Y counts.
  • The COMAC C909, originally known as the ARJ21, is a Chinese regional jet family designed for domestic trunk-feeder and regional operations. It uses rear-mounted engines and a T-tail layout, with airline cabin layouts currently concentrated among Chinese operators.

Cabin configurations

Format: F8/J42/W28/Y216; F=First, J=Business, W=Premium Economy, Y=Economy

Air China

Y90

AeroLOPA source: Air China C909 / ARJ21-700, normalized cabin configuration Y90.

AeroLOPA

China Southern

Y90

AeroLOPA source: China Southern C909 / ARJ21-700, normalized cabin configuration Y90.

AeroLOPA
06

Sources

Wikipedia: COMAC C909 / ARJ21 Family