Information and resources for journalists.

Oct 1, 2016
Q&A: Tier 1 Engineering' battery-powered helicopter flight and EPSAROD program

What were the key specifications of the electric helicopter, such as its weights, power system and controls?
The helicopter had a Gross Weight of 2500 lbs and a BEW of 1250 lbs.  A series of 11 Brammo battery modules weighing 1100 lbs completely powered the aircraft.  The flight controls and drive train were unchanged from that of a Robinson R44,...

Sep 30, 2016
Tier 1 Engineering accomplishes historic battery-powered full-size helicopter flight at Los Alamitos Army Airfield

Costa Mesa, CA, September 30, 2016 /PRNewswire/ -- Tier 1 Engineering announced today that its battery-powered manned helicopter program achieved a successful first hover on Tuesday,...