I found this article in a old UL magazine from 1990. It is a story about the biggest swedish ultralight flight club, Swedish Ultraflyers, that started flying with Tierra2 airplanes and later had them modified into Akka versions. My airplane Se-YIB is mentioned as the one that had the most time in the air, and it was one of the 2 first airplanes that they bought.
Einar Edlund was a pioneer in swedish ultralight flying, and he was the one helping swedish ultraflyers to become the biggest. Sadly he passed away in a ultralight airplane not so many ears ago when he was teaching a new pilot emergency landings.

Anyway,  here is the article:

• AKKA/Tierra