Analysis
The operations of the international flotilla were a failure. Torpedoes proved useless in the shallow waters of southern Lake Ladoga, where they frequently struck the bottom. Nor did their magnetic detonators work well against the wooden hulls of Soviet barges and patrol boats. The secondary armament of the MTBs also proved too light to seriously threaten Soviet gunboats. German mineboats turned out to have extremely unreliable engines, keeping them docked in port far longer than they spent on actual operations nor were their influence mines especially useful against mainly wooden hulled Soviet vessels. The Siebel ferries of EFO had good armament but they were far too slow and had too short a range for effective operations. They were almost "sitting ducks" to the Soviet patrol boats, gunboats and bombers. As their personnel came from the Luftwaffe, with no sea-going experience, operations in the often harsh weather conditions were extremely difficult.
Read more about this topic: Naval Detachment K