Wargaming the Atlantic War
03 September 2017 UK OFFICIAL © Crown copyright 2017 Dstl Paul Edward Strong Supplying War • Britain’s war effort required the constant flow of Allied cargo ships to be maintained
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL ASWThe LessonsTechnology of WWII
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL The Fall of France
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL The First ‘Happy Time’ Convoy Formation • Admiral Karl Dönitz needed more U-Boats to starve the UK into submission but the Mid Atlantic Gap enabled him to concentrate his limited forces
HMS Vimiera
RAF Short Sunderland
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL Western Approaches Command - Liverpool
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL Extending Protection: The Mid-Ocean Escort Force
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL The Second ‘Happy Time’
• ?
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL New Allies, New Challenges Admiral Sir Percy Noble
Admiral Ernest J King
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL “Find out what is happening in the Atlantic, find ways of getting the convoys through, and sink the U-boats!” Churchill - January 1942
Commander Gilbert Roberts
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL The Western Approaches Tactical Unit
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL ‘The Game’ – Understanding the Enemy
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL ‘The Game’ – Orders
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL ‘The Game’ – Processing the Turn
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL ‘The Game’ – Briefing the Turn
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL Nicholas Eugeniusz Plawski Monsarrat
‘Johnnie’ Walker Peter Gretton
Prince Philip Pierre de Morsier
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL The Game – ‘Analysis’ • Wren Officer Jean Laidlaw
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL The First Test • How were U-Boats making their attacks?
Stricken Type IX
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL ‘Chasing Shadows’ - The Beta Search Janet Okell
Sir Max Horton
HMS Vidette
03 September 2017
© Crown copyright 2017 UK OFFICIAL Dstl New Technologies & Tactics
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL Getting to the Church in Time Walker on HMS Starling (2nd Support Group) Escort and Support Groups in Action
HMS Duncan (Convoy HX-231)
HMS TAY (Convoy ON-5)
03 September 2017
© Crown copyright 2017 Dstl UK OFFICIAL Dönitz Plots Revenge
03 September 2017
© Crown copyright 2016 Dstl UK OFFICIAL The T5 Acoustic Torpedo
Wolfpack Leuthen gathers in the Mid Atlantic Gap
03 September 2017
© Crown copyright 2016 Dstl UK OFFICIAL They are going for the escorts!
Flower Class Corvette
03 September 2017
© Crown copyright 2016 Dstl UK OFFICIAL Tooley Hawkings Reports…
HMS Orchis
03 September 2017
© Crown copyright 2016 Dstl UK OFFICIAL Analysis in Action
03 September 2017
© Crown copyright 2016 Dstl UK OFFICIAL Step Aside
A U-Boat shadowing the convoy looking Late 1942 Radar range for a target was approximately 4,000 Yards
Convoy Course
Corvette spots a U-Boat and fires a star shell
03 September 2017
© Crown copyright 2016 Dstl UK OFFICIAL Step Aside
Position C is the A optimum safe distance C U-Boat fires a T-5 from its stern tube B and dives
B Approx 1 mile C
60º The escort’s move to C means A that she evades the torpedo’s acoustic detection array
The Corvette turns as the U-Boat dives
03 September 2017
© Crown copyright 2016 Dstl UK OFFICIAL Step Aside
At C the Corvette returns to C The submerged U-Boat a course that places her heads for a new position close to the U-Boat’s that enables her to continue predicted position to monitor the convoy and prepare a new attack
03 September 2017
© Crown copyright 2016 Dstl UK OFFICIAL 03 September 2017
© Crown copyright 2016 Dstl UK OFFICIAL The End of
03 September 2017 UK OFFICIAL ‘The© Crown copyrightGame’ 2016 Dstl