See here, Antonio:hesham,
where did you found that "box wing" airline. Could you please give us more details?
1976 V. Kuznetsov drafted sport aerobatic aircraft "Photon-01" diamond-shaped wing. The aircraft is now intended to establish a piston engine M-337 260 hp with a tractor propeller.Retrofit said:This one was also designed and tested by the MAI, but I don't know the specifications and history.
Is there a 3V drawing available?
Photo from "Letatyelnyye Apparaty MAI" by Makarov, 1994
You'll note in the various pictures the power plants are mounted on the wings in some designs and not on others. If the design uses thinner, longer, high aspect ratio wings then the power plants are probably going to be on the fuselage for strength and power carry-through reasons. If the wings CAN hold the engines then they probably will be mounted there such as in the Kuznetsov design shown. It's a design decision in the end.Zeppelin said:Would such wings drive engines to be mounted of the main fuselage and not wing?