[Atchafalaya]

He's the one that designed the copter that had side by side angled counter rotating blades with no tail rotor? Always amazed me, and reminded me of the interrupter gear that allowed machine guns to be fired through propellers. Thank God for transmissions.

[skeptoid]

He's the one that designed the copter that had side by side angled counter rotating blades with no tail rotor?

Nope.. . ...you're thinking of the HH43 Kaman Huskie

designed by Charles Kaman, who also invented the Ovation guitar.