Designed by Sebastian Zajonz, the Atom 7HV Ultimate from Compass is a 700-class competition heli with a number of unique features. Equipped with an automatic belt tensioner and sliding battery tray, the design avoids unneeded complexity and places components at the height of the tail boom for a high center of gravity.
The 7HV Ultimate uses Mod 1.0 gears and a single stage transmission to take the punishment of strong motors on 12s battery configurations. Parts count remains relatively low with the 7HV Ultimate with direct servo-to-swash linkages and the lack of push-pull linkages.
Last edited by Matt Gunn; Dec 30, 2013 at 08:23 AM..
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