I am nowadays coming across air frames, which host motors "at an angle" to the normal (i.e. 90 degress to earth's frame of reference).
In my understanding, this allows the vertical force vector from the rotors to be angled differently contrary to the state of the art normal motor mountings on air frames which give thrust directly in the vertical takeoff direciton. The force of gravity is now counteracted by an angled force vector which may improve in performance of flight as less effort is taken vertically for hovering and takeoff.
Is my reasoning correct or any other reasons why this design is considered?
@Forrest, Hugues or someone who might be interested in such a design,
could you please take a looks at this post? :)
Also, I am experimenting with rotors being placed upside down (i.e. rotors placed below the arms) to avoid the air-frame drag altogether. Also, the aerodynamical resistance is improved which leads to lesser air-resistance. Has someone experimented in improvement of performance already with this? This as I see improves the flight time by about 7% from my tests.
Any comments are welcome.