NAVEEN KUMAR S
Dept. of Aeronautical Engg
Name of the guide(s): SWETHA S
NANO UNMANNED AERIAL
Table of Contents
Advantage and disadvantage of nano drones
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The NANO drones is extremely small (NANO) unmanned
aerial vehicle (UAV) that is designed for use in urban areas.
NANO drones are controlled remotely and are equipped with
camera and microphone.
The NANO drones are multi functional, military capable,
small flight vehicles.
Size should be less than 15cms.
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Reynold’s number is less than 10^5.
For primarily intended and developed for defense application.
The NANO drones are Semi-autonomous.
Lift for flight is made with rotary wings and flapping wings.
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An unmanned aerial vehicle (UAV), known as a drone, is an
aircraft without a human pilot.
What is DRONE ?
Drones stand for Dynamic Remotely Operated Navigation
Its flight is either controlled autonomously by computers or
under the remote control of a pilot on the ground.
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essentially, a drone is an aircraft without a human pilot
aboard ; a flying robot.
Small flight vehicles with a different mechanism doing more
Suitable for situations where human cannot involve directly.
Uses more efficient flapping wing mechanism.
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SCOPE OF DRONE
UAS category max takeoff range
Micro 0.10 close range
Mini W<10 close range
Small 10-150 close range
Medium short 150-500 short range
Medium 500-2000 medium range
Large W>2000 long range
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TASKS OF NANO DRONES
Surveying farms (to check health of crops).
Searching for victims of natural disasters.
Operation in constraint environment.
Bio chemical sensing.
Nowdays used for delivery purpose.
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KELVIN’S IDEA is from the flapping wing aerodynamics.
Kelvin’s circulation theorem, the net circulation around insect
body is zero.
ordinary insects, this build-up of high lift coefficient is
One species of insects, ENCASIA FORMOSA , which avoid
any delay in built up of maximum lift.
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1. Air comes straight at the wing.
Air comes straight at the wings, bends around it and leaves
straight behind the wing.
There is no net action on the air so there can be no lift.
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2. Air passing over the wing.
Fig. shows the stream line as in the action.
To generate lift, a wing must divert air down.
The air passes over the wing and is bent down.
As newton’s law suggests, the wing must change something of
air to get lift.
Changes in the airs momentum will result in forces on the
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The most important unsteady aerodynamic effects are
Different NANO DRONES
BLACK HORNET NANO DRONES
Weighing in at roughly half an ounce and four inches long, the
Black Hornet nano helicopter was designed to capture and relay
video and still mages to remote users, and can fly even in windy
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HUMMING BIRD DRONE
Shaped like a bird, the “nano humming bird” drone is negligibly
larger than an actual humming bird and fits in the palm of one’s
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Mosquito drone, its potential to land on some one and use a
needle like pincer to extract DNA from its victim or alternatively
inject drugs or other foreign substances.
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“ Insect sized spies” that could not be detected and would be able
to fly into buildings to ‘ photograph, record, and even attack
insurgents and terrorists’.
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ADVANTAGES AND DISAVANTAGES OF
Nano drones are much cheaper to maintain than traditional
Nano drones can easily recover from in flight collisions.
Nano drones can save more lives in natural disaster because
their small size and ability to fly makes them very
Nano drones can save soldiers in combat positions by
scouting the enemy territory to make sure it is safe to procede.
Low mass , low power requirements, High lift and low landing
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Nano drones could be used by enemies to spy on other
nations possibly revealing top secret information for an enemy.
They are not self powered.
cannot launch from ground.
There chances of air bag buckling.
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MICRO OR NANO air vehicles are new development of the
technology by which a variety of operations are done.
Simple flapping of the wings does not generate sufficient lift.
So special mechanism is designed to get the required lift using
weis fogh’s model.
Flapping mechanism have more lift compared to fixed wing
It can increase the lift without increasing vehicle speed.
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mohd. Sharif ammo, Md. Nizam Dahalan , “micro air vehicle:
technology review and design study, department of aeronautics
faculty of mechanical engineering
university technology , Malaysia.
Dr K.C.Wang “ design and development of micro air vehicle”
school of aerospace , University of Sydney.
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