K'toch class
K'toch class was a type of one-man Klingon scout ship in service during the mid-22nd century. 

In early 2151, Klaang, a courier, visited Rigel X aboard his scout ship before it was destroyed in a crash landing on Earth during a confrontation with the Suliban in April of that year. His vessel possessed some form of stealth technology. ()

External links
 
 

de:Klaangs Schiff 
nl:Klaang's scoutschip
Klingon starship classes
Memory Alpha articles named from scripts