ATLAS vs. KSSU Galley Standards
Cabin Interiors & Galley Standards · 6 specs
Direct Answer
Commercial aircraft galleys adhere to two non-interchangeable international standards for catering service trolleys and Standard Unit (SU) boxes: ATLAS (dominant on ~80% of global airlines, 305 mm cart width) and KSSU (used by KLM, Swiss, SAS, UTA, 301 mm cart width).
Specs
| Dominant Standard | ATLAS (used by ~80% of world airlines including Lufthansa, BA, Emirates) |
| KSSU Origin | KSSU Consortium (KLM, SAS, Swissair, UTA) |
| Full-Size Trolley Length | ATLAS: 810 mm (31.9") vs. KSSU: 815 mm (32.1") |
| Trolley Width | ATLAS: 305 mm (12.0") vs. KSSU: 301 mm (11.8") |
| Trolley Height | ATLAS: 1,030 mm (40.5") vs. KSSU: 1,030 mm (40.5") |
| Interchangeability | Strictly incompatible — ATLAS boxes and meal trays do not fit KSSU carts |
Dimensional Engineering Comparison: ATLAS vs. KSSU vs. ACE
| Equipment Category | ATLAS Standard (Global Norm) | KSSU Standard | ACE Standard (North America) |
|---|---|---|---|
| Standard Full-Size Meal Cart | 305 × 810 × 1,030 mm (12.0" × 31.9" × 40.5") | 301 × 845 × 1,030 mm (11.8" × 33.3" × 40.5") | 305 × 890 × 1,030 mm (12.0" × 35.0" × 40.5") |
| Half-Size Service Cart | 305 × 405 × 1,030 mm (12.0" × 15.9" × 40.5") | 301 × 425 × 1,030 mm (11.8" × 16.7" × 40.5") | 305 × 445 × 1,030 mm (12.0" × 17.5" × 40.5") |
| Standard Unit (SU Box) | 290 × 395 × 470 mm (11.4" × 15.6" × 18.5") | 285 × 420 × 470 mm (11.2" × 16.5" × 18.5") | 290 × 440 × 470 mm (11.4" × 17.3" × 18.5") |
| Waste Trolley (Foldable) | 305 × 405 × 1,030 mm | 301 × 425 × 1,030 mm | 305 × 445 × 1,030 mm |
| Oven Insert Capacity | 32 standard casserole meals | 28 standard casserole meals | 32 standard casserole meals |
| Primary Airline Operators | ~80% of global airlines (Lufthansa, BA, AF, TK, Emirates, Singapore) | KLM, SAS, Swissair (heritage), Air France (777 subfleet) | Legacy US carriers (Delta, American, United older fleets) |
In-Flight Galley Electrical & Latches Specifications
- Electrical Power Supply: Standard galley insert equipment (chillers, beverage makers, convection ovens) operates on 115V / 200V 3-phase AC at 400 Hz, conforming to ARINC 810 and ARINC 812 interfaces.
- Secondary Locks: Turn-latches with positive mechanical detents ensure catering carts withstand up to 9g forward crash decelerations required under FAA 14 CFR § 25.561.