Changes

* [http://www.ecalc.ch/xcoptercalc.php?ecalc&lang=en&cooling=medium&rotornumber=4&config=flat&frame=250&tiltlimit=90&weight=515&calc=auw&elevation=500&airtemp=25&qnh=1013&batteries=0&battcap=1300&battri=0.0107&battv=3.7&battccont=35&battcmax=60&battweight=38.6&chargestate=0&s=3&p=1&esc=0&esccont=12&escmax=12&escri=0.015&escweight=10&motor=dys&type=78%7Cbe1806-2300&gear=1&propeller=0&pconst=1.13&tconst=1.0&proptwist=0&diameter=5&pitch=3&blades=2&project=...insert%20your%20project%20name... Quad250 Power calculator]