This model was designed by Sven Wentzel for a one design contest sponsored by the company "Fröjds". It was available as a kit from Wentzels own company. The contest was a success, with 45 competitiors for the finals in Stockholm. The best results were achieved by Åke Roggentin, who had an average duration of 2:18 for three flights.
| Name: Fröjds | Alternative name: |
| Plan-ID (S-O L. numbering): A4, A177 | Owner: SMOS |
| Designer: Sven Wentzel | Drawn by: |
| Year designed: 1937 | Wingspan (mm): 750 |
| Category: Klass B | |
| Sources: Wentzels | |
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Changed date: 2015-12-26
