The Douglas XB-42 Mixmaster was an experimental bomber aircraft, designed for a high top speed.
==Glej tudi==* Letalski vijak* Koaksialna rotorja* Scimitar propeler* Propeler s konstantnimi vrtljaji* Turbofan* Propfan* Kuznecov NK-12==Sklici in reference====Zunanje povezave==*Two Propellers in Tandem Turning in Opposite Ways Give Warplane New Speed" December 1941 article with text, photos and drawing*Aircraft.co.za - The Complete Aviation Reference*Luftfahrtmuseum.com - Further information and pictures of contra rotators for the Fairey Gannet and Shackleton*Video of a Spitfire PR.XIX Startup by Steve Hinton at Chino, California on YouTube