Digby

These apply to the Russians & Cossacks, however, the terms match.

Tschaiks or half galleys.

Page 196.

Navies of the Napoleonic Era. Otto von Pivka. David & Charles, 1980

http://books.google.com/books?id=cBoaAAAAMAAJ&q=Tschaiks&dq=

Czayki & Czayka.

Page 20.

The Cossacks of the Ukraine. Henryk Krasinski. Partridge and Oakey, 1848.

http://books.google.com/books?id=dSsEAAAAQAAJ&pg=PA20&dq=

Good hunting.

Ron