Economy
Because of their complexity , all previous VTOL aircraft have proven exorbitantly expensive to maintain. In addition, previous VTOLs have had high fuel consumption in cruise due to high drag, and in the hovering mode due to high fan loading. The Discojet, with its moderate fan loading and low drag coefficient balance between hover and cruise performance, It combines the cruising speed of the light plane with the hovering ability of the helicopter. Compared on the performance criteria- Payload times Speed/Power Required the Discojet outperforms the helicopter above 130 km/h and the light plane above 225 km/h . The Discojet’s simple mechanics,with its corresponding low maintenance, means that overall operating costs will be 70 percent less than the cost of operating a two place helicopter with comparable performance.