A Finnish S2 with T-tail, designed by Pentti Ojanen
| Name: OJA-1 | Alternative name: |
| Plan-ID (S-O L. numbering): | Owner: SMOS |
| Designer: Pentti Ojanen | Drawn by: |
| Year designed: 1943 | Wingspan (mm): 1490 |
| Category: Klass S2 | |
| Sources: Oldtimer 4/2006 | |
Changed date: 2014-08-23
Svenska Modellflygares Oldtimersällskap