This project was undertaken under the National Aerospace Conceptual Design Competition – IV conducted annually by the Aeronautical Society of India (AeSI), involved in a team of students representing IIT Kharagpur. I was involved in the powerplant design, CAD creation, and battery research.

Blackbird – IV flying over the W350 project
(Image used with permission from Sumitomo Forestry and Nikken Sekkei)

The RFP of 2020 was to design an electric VTOL (vertical take-off and landing) aircraft for the Indian markets of 2030. This involved studies into various upcoming battery types in academia and the possible regulations that will be drawn up by the regulatory bodies of the Indian airspace.

Blackbird-IV poised for a landing at a non-functional Portland helipad, symbolizing the return of rotorcraft to urban spaces thanks to the reduced noise
Name Value Comments
MTOM $1881~\text{kg}$ Takeoff Mass
Wingspan $11.11~\text{m}$
Canard span $6.59~\text{m}$
Takeoff Thrust
(with dynamic overhead)
$22.172~\text{kN}$ Takeoff with 0.2g vertical acceleration
Maximum Thrust at Takeoff $23.136~\text{kN}$ Thrust used in motor and propeller sizing
Cruise speed $55~\text{m/s}$
Climb speed ($V_y$) $61~\text{m/s}$ For shortest distance climb
Service ceiling $1000~\text{m}$ Rate of climb: 100 ft/min
Summary of the designed aircraft

The aircraft employs a distributed shrouded electric propulsion system mounted on the control surfaces.

Guide: Prof. Naba Kumar Peyada

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