A competition model for the old Swedish G1 class. Could be flown in oldtimer class B or C depending on what the span is.
| Name: Extrem | Alternative name: |
| Plan-ID (S-O L. numbering): A-134 | Owner: SMOS |
| Designer: Erik Y. Ekberg | Drawn by: |
| Year designed: 1954 | Wingspan (mm): ? |
| Category: Övriga gummimotormodeller | |
| Sources: orig,ritn. | |
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Changed date: 2017-06-15
