|Ordered:||1914 Peacetime order|
|Builder:||Germaniawerft, Kiel, Germany|
|Launched:||27 February 1915|
|Commissioned:||16 September 1915|
|Draft:||3.74 m (fwd); 3.45 meters (aft)|
|Speed:||34.5 knots (63.9 km/h)|
|Complement:||83 officers and sailors|
G40 was assigned to the First Torpedo Boat Flotilla of the High Seas Fleet of the German Imperial Navy. When she participated in the Battle of Jutland she was assigned to escort the battlecruiser SMS Lützow. In this action, Lützow was severely damaged such that she was unable to return to German waters. She assisted SMS G37, SMS G38 and SMS V45 in the evacuation of survivors. Naval gunfire from pursuing British vessels subsequently damaged G40's engines and she had to be towed back to German waters.