Re:Rocket Lab - Reusability Plans for Electron Rocket via He...
by robocat on Wednesday August 07, 2019 @07:10AM
(#20633626)
Same technique as NASA investigated for recapturing a Saturn V booster:
"[The helicopter] would be gigantic. The rotor diameter would be over 120 meters (400 feet). Its empty weight would be over 200,000 kilograms (450,000 pounds), with a useful load of nearly 250,000 kilograms (550,000 pounds), for a gross weight of a whopping 453,000 kilograms (1,000,000 pounds)"
"[The helicopter] would be gigantic. The rotor diameter would be over 120 meters (400 feet). Its empty weight would be over 200,000 kilograms (450,000 pounds), with a useful load of nearly 250,000 kilograms (550,000 pounds), for a gross weight of a whopping 453,000 kilograms (1,000,000 pounds)"
http://www.thespacereview.com/article/3741/1