![Rolls-Royce North America Boeing 747-200 Trent 1000 engine test-bed climbing out after take-off with undercarriage retracting. Part of the special Boe Stock Photo - Alamy Rolls-Royce North America Boeing 747-200 Trent 1000 engine test-bed climbing out after take-off with undercarriage retracting. Part of the special Boe Stock Photo - Alamy](https://c8.alamy.com/comp/KFAR71/rolls-royce-north-america-boeing-747-200-trent-1000-engine-test-bed-KFAR71.jpg)
Rolls-Royce North America Boeing 747-200 Trent 1000 engine test-bed climbing out after take-off with undercarriage retracting. Part of the special Boe Stock Photo - Alamy
![JetPhotos a Twitteren: "The Rolls Royce 747 flying test bed in Tucson. https://t.co/OYszWmQkfD © Liu Chen https://t.co/Z7xnVgGuu4" / Twitter JetPhotos a Twitteren: "The Rolls Royce 747 flying test bed in Tucson. https://t.co/OYszWmQkfD © Liu Chen https://t.co/Z7xnVgGuu4" / Twitter](https://pbs.twimg.com/media/D6vVCCcWwAEDxJ-.jpg:large)
JetPhotos a Twitteren: "The Rolls Royce 747 flying test bed in Tucson. https://t.co/OYszWmQkfD © Liu Chen https://t.co/Z7xnVgGuu4" / Twitter
![Flightradar24 Twitterren: "✈️ The @RollsRoyce 747 testbed flying with the Trent 1000. 📡 https://t.co/wRlm6B7vvP https://t.co/wpLDIBo2tN" / Twitter Flightradar24 Twitterren: "✈️ The @RollsRoyce 747 testbed flying with the Trent 1000. 📡 https://t.co/wRlm6B7vvP https://t.co/wpLDIBo2tN" / Twitter](https://pbs.twimg.com/media/CjLFKBIXAAAAyqf.jpg)