Looking at the previous post, attractive as the safer option appears, a review of performance data points to the benefit of larger rotors at this stage of the game.
The planform with double the number of rotors at a fraction of the size is ideally one for ducted fans of the sort provided by Trek Aerospace, but as they are fellow competitors in the GoFly challenge I don't see them falling over themselves to provide proprietary knowledge.
Besides which I've bust a gut on the 'wearable' drone to date. Almost literally.
Before cutting metal therefore I revisit the layout to see if it will swing a 40-inch propeller.
Seems it will. You can calculate the dimensions with ample use of Pythagoras Law, but for the safest I sketch it out on the workshop floor the way they chalked up sections of the Titanic in Belfast's shipyard.
Though that might not be the ideal comparison for something that's supposed to float on air.
The outline above spans 102 inches, just inside the 102.36 allowed for the fly-off.
Doable, so I shall draft a blueprint that should prove more acceptable to the FAA.
And these babies will lift thirty-five kilos apiece at a comparatively leisurely RPM.
