Some 40 years ago, I had a pattern plane from a German company called Rowan. the model's name was Rowin.
Rowan also sold a digital radio under the name Propcontrol.
It had a fiberglass fuselage and balsa planked foam wing.
It flew quite well with a Merco 49 of which I still have two.
It met its demise when I applied up elevator while flying inverted less than 20 meter above an ex-WW2 German concrete runway.
The Merco did not survive either, althouh I kept the liner/piston assembly as a spare.

Now, I never took a picture of this model, and I would love to find one.
Google has been totally unresponsive, but maybe someone on RCU ... [8D][8D]