Two year maintenance tear down of Roban 700 Compactor helicopter mechanics. Bearing and umbrella gears worn out & shaft spacer tips. Asymmetric tail blades? We will see...<br /><br />Roban 700Super Scale AS350 Full Review On My Site:<br /><a href="http://www.rchelicopterfun.com/scale-as350-helicopter.html" target="_blank" rel="nofollow">http://www.rchelicopterfun.com/scale-as350-helicopter.html</a><br /><br />For Any Questions Regarding This Maintenance/Tear Down, Please contact me through my web site:<br /><a href="https://www.rchelicopterfun.com/contact.html" target="_blank" rel="nofollow">https://www.rchelicopterfun.com/contact.html</a><br />...<br /><a href="https://www.youtube.com/watch?v=OLoBiUDC1C8" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=OLoBiUDC1C8</a>