USA: * Douglas project (shaft drive). This company is developing a fifty-passenger helicopter as a DC-3 replacement type. Engines may be two Rolls-Royce RB 109 turboprop variants. [I believe this is either the patent shown here ->http://www.secretprojects.co.uk/forum/index.php/topic,898.msg20402.html#msg20402 (too early), nor the compound helicopter from AIR PROGRESS - Spring 1962, page 40 (too late).]
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lllllAs of 2019 I have transitioned; My name is now Rei. Please don't deadname or misgender me, thank you. <3 lllll