Boeing's 777-9 completed a maximum-energy rejected-takeoff brake test at Edwards AFB, simulating a worst-case RTO at max takeoff weight and roughly 190 kt. Brakes reached about 2,500°F (≈1,371°C) during the high-speed stop — a key validation milestone in the 777X certification campaign.
Discovered |
Briefing
Confirms a critical validation: brakes reached ~2,500°F (~1,371°C) during a max‑weight, ~190 kt rejected takeoff — the kind of maximum‑energy data regulators require for certification and operational limits.
Moves the 777X campaign forward by building on the FAA's clearance to begin Phase 4A testing and the qualification of the first 777-9 full‑flight simulator, both important steps toward pilot training approvals and deliveries.
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(NL) Boeing tests 777-9 brakes to the limit at maximum takeoff weight (video) • pilootenvliegtuig.nl
Boeing advances B777-9 certification with high-stress brake energy test • mrobusinesstoday.com
Boeing 777X Brake System Passes Super-Hot 2,500°F Test, Advancing Certification • aerospaceglobalnews.com
Boeing 777-9 completes maximum brake-energy test at Edwards AFB as brakes reach 2,500 degrees • theaviationgeekclub.com
Boeing 777-9 passes 2,500°F rejected‑takeoff brake test at Edwards AFB • aerospaceglobalnews.com
Boeing's Big 777X Testing • Dj's Aviation
Air Data News
• Ricardo Meier