![](https://www.historynet.com/wp-content/uploads/2018/04/Lancaster-radial-IWM-CH-19792-scaled.jpg)
This Lancaster B Mark II, tests its Bristol Hercules VI sleeve-valved radial engines in a dispersal at East Wretham, Norfolk. Some 300 of this version of the Lanc were built. (IWM CH 19792)
This Lancaster B Mark II, tests its Bristol Hercules VI sleeve-valved radial engines in a dispersal at East Wretham, Norfolk. Some 300 of this version of the Lanc were built. (IWM CH 19792)