![RG Poulussen on Twitter: "Incredible invention. Change to enemy aircraft type, and then aim and fire. A Ferranti IID gyroscopic gunsight in a Spitfire IX. #WW2 #HISTORY https://t.co/ZsMwBtegIZ" / Twitter RG Poulussen on Twitter: "Incredible invention. Change to enemy aircraft type, and then aim and fire. A Ferranti IID gyroscopic gunsight in a Spitfire IX. #WW2 #HISTORY https://t.co/ZsMwBtegIZ" / Twitter](https://pbs.twimg.com/media/EZ9_b-7XkAI4C0P.jpg)
RG Poulussen on Twitter: "Incredible invention. Change to enemy aircraft type, and then aim and fire. A Ferranti IID gyroscopic gunsight in a Spitfire IX. #WW2 #HISTORY https://t.co/ZsMwBtegIZ" / Twitter
How did a fighter pilot set a gyro gun-sight? Did they need to re-set it each time their prey changed course? - Quora
![military - How did the gyro gunsights of WW2 get the range and lead of a target? - Aviation Stack Exchange military - How did the gyro gunsights of WW2 get the range and lead of a target? - Aviation Stack Exchange](https://i.stack.imgur.com/erSXO.jpg)
military - How did the gyro gunsights of WW2 get the range and lead of a target? - Aviation Stack Exchange
![Mark II Gyro Gunsight — Historic Photographs | miscellaneous | Reference | Spitfire Mk. IX | Spitfire Mk. XIV | Spitfire Mk. XVI Mark II Gyro Gunsight — Historic Photographs | miscellaneous | Reference | Spitfire Mk. IX | Spitfire Mk. XIV | Spitfire Mk. XVI](http://www.spitfiresite.com/photos/historic/uploaded_images/gyro-gunsight-1-719386.jpg)