(4K) Boeing 777-9 High Altitude Testing at Colorado Springs Airport

Last Tuesday I was lucky enough to see the 777X doing some high altitude performance testing at Colorado Springs Airport. The aircraft did a total of 8 patterns around the airport on Tuesday. It ended up staying the night at COS and then flew around a bit on Wednesday before heading back to Everett, Washington. I was fortunate enough to catch it doing its last 2 patterns around COS on Tuesday in addition to its landing and taxi. Thank you for watching and have a fantastic day! Camera: Sony RX10 IV Recorded in 4K (UHD) at 30FPS Record date: February 13, 2024 All video and audio in this video was recorded and owned by me, Colorado Aviation. Uploading this footage in whole or in part without permission granted by me is prohibited. Timestamps: 0:00 - First Approach 1:05 - Second Approach 2:09 - Landing 3:12 - Taxi 4:59 - Runway Taxi Test 6:10 - Taxi