Find a Security Clearance Job!

Military


Doak VZ-4

Tilting engine exhaust flow is one way to achieve vertical flight, as just discussed; another is to tilt the entire engine, or possibly even the entire aircraft or tilt ducted fans, or even jet engines. The Doak VZ-4 of 1958 had a 3,000 # TOGW and used on Lycoming T53 turboshaft engine driving two 4 ft diameter ducted fans which could tilt through 90. The overall approach proved promising but was very noisy, the ducted fans at full power sounding like sirens.



NEWSLETTER
Join the GlobalSecurity.org mailing list


Unconventional Threat podcast - Threats Foreign and Domestic: 'In Episode One of Unconventional Threat, we identify and examine a range of threats, both foreign and domestic, that are endangering the integrity of our democracy'


 
Page last modified: 30-03-2012 18:45:22 ZULU