Technical data of JK 01A Elf
| wing span |
11,12 (m) |
| lifting surface | 10,8 (m2) |
| length | 5,65 (m) |
| height | 192 (cm) |
| operating empty weight | 115 (kg) |
| MTOW | 230 (kg) |
| cruise speed | 110 (km/h) |
| max speed | 125 (km/h) |
| stall speed | 42 (km/h) |
| vertical speed | 2,5 (m/s) |
| gliding ratio | 26 |
| take-off run | 150 (m) |
| landing run | B.D. |
| engine | JPX D330 |
| engine power | 20 (HP) |
| fuel tank capacity | 15 (l) |
| fuel consumption | 4,5 (l/h) |