A Finnish beginners model that was available as a kit from Wentzels. Like on several other simple gliders, the wing was only covered on the top side, and tail surfaces + wing tips were made of cardboard.
| Name: URA 1 | Alternative name: |
| Plan-ID (S-O L. numbering): B-145 | Owner: SMOS |
| Designer: Uras Helsningfors | Drawn by: |
| Year designed: 1947 | Wingspan (mm): 685 |
| Category: Klass S1 | |
| Sources: Wentzels | |
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Changed date: 2014-09-28
