In the article,
"The RoboBee Flies Solo," Harvard John A. Paulson School of
Engineering and Applied Science (2019) addressed researchers’ breakthroughs to
a decade-long process of making a self-sustaining miniature flying autonomous
vehicle.
According to the
article, the researchers faced difficulty in finding the perfect balance
between mass and power at such a tiny scale, where efficient flight is proven
to be much harder to achieve.
Throughout the
decade, researchers working on this project made several important and major
additions to the design of the vehicle such as including an additional pair of
wings and making adjustments to the actuator and transmission ratio and thus
enabled them to “put everything we need on-board without using more power, ” as
stated in the article by Jafferis.
This particular
change in the project let researchers remove the power cord and adding solar
cells, allowing RoboBee to achieve a self-sustaining function and also fly
untethered.
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