Was at the field with 3 number senior, no names. Had my mid size Mambo with an OS 15. To windy for me. Well sir I would't go up if I were you, Well 3 number went anyway. Mid size J-3 foamy electric. Hand launched it for him. Keep it up wind !!!, Well 3 number went from hover to 100mph down-wind. He choped the throt. and tryed to turn back, He stuck it in a 50' maple at the end of the runway his eyes and body still following a ghost plane to the runway ! Squinting his eyes he asked "were is it ?". Well after 4 days I got it down for him and he now holds the longest approch record at the field, Next time I'll talk about over trimming and hand launching with the rx off.