keesje
You have a facility for design, and you think well. I liked your work the first time around, should you be on to other projects? The Big propellor Turbojet marriage has some pretty efficient expressions in millions of hours of Turbofans. So my suggestion is take your refreshing airframe approaches to the Turbofan solution. Propellors are heavy, complex, way expensive given their "advantages", etc. Nice work! Altitude constraints limit the Propellor to high drag environment, and Propellor speed limit by Noise at low level.
bear
Last edited by bearfoil; 31st Aug 2010 at 17:13.