Technical data of JK 05L Junior
| wing span |
10,76 (m) |
| length |
5,7 (m) |
| height | 2,25 (m) |
| total wing surface | 10,2 (m2) |
| tail plane surface | 1,44 (m2) |
| empty weight | 290 (kg) |
| max. weight | 450 (kg) |
| load on the wing surface | 41 (kg/m2) |
| maximum speed | 200 (km/h) |
| cruise speed - 75% of power | 180 (km/h) |
| cruise speed - 50% of power | 150 (km/h) |
| minimum speed - flaps in cruise position | 80 (km/h) |
| minimum speed - flaps in start position | 60 (km/h) |
| minimum speed - flaps in landing position | 55 (km/h) |
| climbing ratio | 6 (m/s) |
| flying range with full tanks | 1000 (km) |