I have posted about the three South African Jack Koper designed scows and below is a video of two German gents having a grand old time reaching along in the Jack Koper Tempo scow. The first thirty seconds of the video is relaxed and then a grand breeze filters down the lake, sending them into giddy hyperspace. As I have said before, I am monolingual and don't have a clue what they're saying as they bomb along. It would be fun to sail on a Tempo.
I'll have more to say about Jack Koper's smallest scow, the Dabchick in a later post.
A more recent post on the Tempo scow.