The document is a presentation by Vikalp Dongre from MVJCE, Bangalore about a proposed Zero Emission Hyper Sonic Transport (ZEHST). It discusses the concept of a supersonic passenger transport that could fly from Paris to Tokyo in under 2.5 hours without emitting any emissions. It covers technologies pioneered by the Concorde supersonic transport and proposes using turbofans for takeoff to make the ZEHST no louder than current airplanes.

1. Seminnar  ZEHST
vikalp Dongre, MVJCE,Bangalore
11/30/2013
Supersonic transport concept could one day fly from Paris to
Tokyo in less than two and a half hours.
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3. By vikalp Dongare
MTech Aeronautical Engineering
Internal Guide Asst. prof Punith
11/30/2013
vikalp Dongre, MVJCE,Bangalore
Zero Emission
Hyper Sonic
Transport
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Using turbofans for take off would make ZEHST no more noisy
than current-day ordinary plane
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17. vikalp Dongre, MVJCE,Bangalore
11/30/2013
turbojet-po supersonic passenger airliner
or supersonic transport (SST). It is one of only
two SSTs to have entered commercial service
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vikalp Dongre, MVJCE,Bangalore
Concorde pioneered the following technologies:
For high speed and optimisation of flight:
Double delta (ogee/ogival) shaped wings
Variable engine air intake system controlled by digital computers[
Supercruise capability
Thrust-by-wire engines, predecessor of today’s FADEC-controlled
engines[
Droop-nose section for better landing visibility
For weight-saving and enhanced performance:
Mach 2.04 (~2,179 km/h or 1,354 mph) cruising speed[ for optimum
fuel consumption (supersonic drag minimum although turbojet
engines are more efficient at higher speed
Mainly aluminium construction for low weight and conventional
manufacture (higher speeds would have ruled out aluminium)[41
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19. vikalp Dongre, MVJCE,Bangalore
Full-regime autopilot and autothrottle[42] allowing
"hands off" control of the aircraft from climb out to
landing
Fully electrically controlled analogue fly-bywire flight controls systems[35]
High-pressure hydraulic system of 28 MPa
(4,000 lbf/in²) for lighter hydraulic components[43]
Complex Air Data Computer (ADC) for the
automated monitoring and transmission of
aerodynamic measurements (total pressure, static
pressure, angle of attack, side-slip).[44]
Fully electrically controlled analogue brake-bywire system[45]
Pitch trim by shifting fuel around the fuselage for
centre-of-gravity control[46]
Parts made using "sculpture milling", reducing the
part count while saving weight and adding
strength.[47]
No auxiliary power unit, as Concorde would only
visit large airports where ground air start carts are
available.[48]
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