Kriegsmarine
Commander-in-Chief of Navy Group Command West: Generaladmiral Alfred Saalwächter (Responsible for operational direction of the “Sea Lion” light naval forces based in France and the Low Countries.)
Naval Commander West for Operation “Sea Lion” (also the Fleet Chief): Admiral Günther Lütjens (Responsible for the tactical control and protection of the four transport fleets. The Kriegsmarine began assembling the following formations for protection of the convoy routes: two destroyer flotillas at Le Havre and four torpedo boat flotillas at Cherbourg to protect the western flank and three motor torpedo boat flotillas at Zeebrügge, Flushing and Rotterdam to protect the eastern flank. Also, 27 U-boats under the direction of Vizeadmiral Karl Dönitz were arranged to reinforce the convoy protection formations. Finally, nine patrol flotillas, 10 minesweeping flotillas and five motor minesweeping flotillas would accompany the transport convoys during the actual Channel crossing. An additional three minesweeping flotillas, two anti-submarine flotillas and 14 minelayers were allocated to Navy Group Command West for supplementary support.)
Chief of Staff: Kapitän zur See Harald Netzbandt
Leader of Destroyers (also Chief of the 6th Destroyer Flotilla): Kapitän zur See Erich Bey – flagship: destroyer Hans Lody (Z 10).
Leader of Torpedo Boats: Kapitän zur See Hans Bütow
Commander of U-Boats: Vizeadmiral Karl Dönitz
Transport Fleet “B” (Dunkirk): Vizeadmiral Hermann von Fischel – transporting the first echelons of the 17th and 35th Infantry Divisions and the staff and corps troops, including Panzer Battalions B and D (less one company from the latter), of the XIII Army Corps.
Tow Formation 1 (Dunkirk): Vizeadmiral von Fischel (as well as being the transport fleet commander)
Tow Formation 2 (Ostend): Kapitän zur See Walter Hennecke
Convoy 1 (Ostend): Kapitän zur See Wagner
Convoy 2 (Rotterdam): Kapitän zur See Ernst Schirlitz
Transport Fleet “C” (Calais): Kapitän zur See Gustav Kleikamp – transporting the first echelons of the 1st Mountain Division and the 7th Infantry Division and the staff and corps troops, including Panzer Battalion A, of the VII Army Corps.
Convoy 3 (Antwerp): Kapitän zur See Wesemann
Transport Fleet “D” (Boulogne): Kapitän zur See Werner Lindenau – transporting the first echelons of the 26th and 34th Infantry Divisions and the staff and corps troops, including Panzer Battalion C, of the XXXVIII Army Corps.
Transport Fleet “E” (Le Havre): Kapitän zur See Ernst Scheurlen – transporting the first echelons of the 6th Mountain Division, the 8th and 28th Infantry Divisions and the staff and corps troops, including one company from Panzer Battalion D, of the VIII and X Army Corps.
Echelon 1a (Le Havre): Korvettenkapitän von Jagow (originally designated Convoy 4)
Echelon 1b (Le Havre): Kapitän zur See Ulrich Brocksien (originally designated Convoy 5)
Heavy Naval Units
The Kriegsmarine did not plan to employ its few remaining heavy surface units in the coastal waters of the main invasion area. Instead, they would be used for diversions to draw British naval forces away from the English Channel and tie down British troops away from the landing zones.
Two days prior to the actual landings, the light cruisers Emden (Kapitän zur See Hans Mirow), Nürnberg (Kapitän zur See Leo Kreisch with Vizeadmiral Hubert Schmundt, the Commander of Cruisers, aboard) and Köln (Kapitän zur See Ernst Kratzenberg), the gunnery training ship Bremse and other light naval forces would escort the liners Europa, Bremen, Gneisenau and Potsdam, with 11 transport steamers, on Operation “Herbstreise” (Autumn Journey), a feint simulating a landing against the English east coast between Aberdeen and Newcastle.*** After turning about, the force would attempt the diversion again on the next day if necessary. (Most of the troops allocated to the diversion would actually board the ships, but disembark before the naval force sortied.)
Shortly before the commencement of “Sea Lion,” the heavy cruiser Admiral Hipper (Kapitän zur See Wilhelm Meisel), on standby at Kiel from 13 September 1940, would carry out a diversionary sortie in the vicinity of Iceland and the Faroes.
The heavy cruiser Admiral Scheer (Kapitän zur See Theodor Krancke) would carry out another diversionary mission by raiding merchant shipping in the Atlantic. (It is doubtful this ship would have been available in time for the operation as she was undergoing extensive trials and crew training in the Baltic Sea following a major shipyard refit.)
The remaining German heavy surface units, the battlecruisers Scharnhorst (Kapitän zur See Kurt Caesar Hoffmann) and Gneisenau (Kapitän zur See Otto Fein), the heavy cruiser Lützow (Kapitänleutnant Heller – caretaker commander) and the light cruiser Leipzig (decommissioned) were all undergoing repairs for varying degrees of battle damage and were thus not available for Operation “Sea Lion.”
In August 1940, the Kriegsmarine considered employing the pre-dreadnought battleships Schleswig-Holstein and Schlesien to provide artillery support for the landings, but ultimately rejected the idea.