In 1952, Sigurd Isacson announced the rubber powered "Silvermåsen" (Silver Gull), derived from the earlier Jetex-powered "Jetex-måsen". Although it could be used as a competition model in the G1 category, it should probably be considered an easy-built sports model with estetic lines.
| Name: Silver-Måsen | Alternative name: |
| Plan-ID (S-O L. numbering): A-312 | Owner: SMOS |
| Designer: Sigurd Isacson | Drawn by: |
| Year designed: 1952 | Wingspan (mm): 690 |
| Category: Klass B | |
| Sources: Oldtimer 1/2010, Isacson | |
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Changed date: 2015-12-26
