Translations:KAVAN DARA A1 (F1H) 1200mm - Instruction manual/47/en

From KAVAN RC Wiki

Give a signal to your friend holding your mode. Both of you will start running into the wind, the assistant will launch the model after a few paces. Continue running into the wind paying attention to the tension of the towline and checking the model over your shoulder. Run as fast as necessary to achieve steady climbing rate of your model. The model should climb straight forward, at steady rate, in a nice arc. The stronger the wind, the slower you might run. If the towline tension decreases, your model climbs slowly (and yaws to a side) you should run faster. If the towline tension increases and the model violently turns to a side, you have to slow down and wait until the model returns to the original straight path. Hi-start requires some skills; especially on a windy day running too fast might even end in destruction of your model. Once the mode climbs almost over your head, it should start turning slightly left – this is the moment to stop. Let the model fly in front of you and release the towline.