BusinessPratt & Whitney Secures $241M Modification for F135 Engine Core Upgrade 43 mins ago01 mins The modification supports moving the engine core upgrade into the engineering and manufacturing development phases. Post navigation Previous: Man Arrested in Switzerland After Deadly Shooting at RaveNext: Chad Keefer Named Horizon3 Federal Sales VP Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.