This document discusses vertical take-off and landing (VTOL) aircraft. It defines VTOL aircraft as those that can hover, take off, and land vertically without needing a runway. There are two main types of VTOL technology: rotorcraft and powered lift. Rotorcraft use rotating blades like helicopters to generate lift, while powered lift vehicles direct thrust downward for vertical flight. Examples of different VTOL aircraft are provided like helicopters, tiltrotors, tiltwings and tail-sitters. Advantages of VTOL include removing the need for runways and making air travel safer. The document concludes that while VTOL aircraft are not yet economical, they may have an important role in future aviation.

1. VERTICAL TAKE-OFF AND
LANDING (VTOL)
GUIDED BY: SUBMITTED BY :
TWINKY JOSEPH AKHILMON .K
HOD ,DEP. OF AERONAUTICAL S7 , AERONAUTICAL
RIET REG. NO : 14428001
RIET , NAGAROOR
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2. INTRODUCTION
VTOL stands for vertical
take-off and landing.
VTOL aircraft that can take
off, hover, and land
vertically.
In VTOL we can remove
the need of runway.
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3. What is VTOL ?
 A VTOL aircraft is one that can hover, take
off, and land vertically.
The best-known example is the helicopters and
drones.
 VTOL aircraft can land and take off at any
worst conditions .
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4. Types of VTOL
 There are two different types of VTOL
technology.
1. ROTORCRAFT
.
2. POWERED LIFT
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5. Rotorcraft
• Known as rotary wing
aircraft.
• Lift generated by rotor
blades spinning around a
central mast.
• Eg : Helicopters ,
Cyclogyro , Autogyro ,
Gyrodynes.
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6. HELICOPTERS
A helicopter is a type of rotorcraft
 Lift and thrust are supplied
by rotors.
It can take off and land vertically,
to hover.
 It can fly forward and backward
It can used in congested or
isolated areas.
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7. CYCLOGYRO
The cyclorotors as the principal
source of lift, propulsion, and
control.
They are capable of VTOL and
hovering performance like
a helicopter
The wing resembles a paddle
wheel, with airfoils replacing the
paddles.
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8. AUTOGYRO
Also known as gyroplanes or
gyrocopters .
The rotor is unpowered and rotates
freely in the airflow as the craft travels
forward .
So the craft needs a conventional
powerplant to provide thrust .
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9. Gyrodynes
It has a separate forward
thrust system of an autogyro.
 Lift during forward flight is
provided by a combination of
the rotor, like an autogyro, as
well as conventional wings.
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10. Powered lift
• Powered-lift vehicles are those
that take off and land vertically.
.
• Vectored thrust planes such as
the Harrier Jump jet series also
used powered-lift technology.
• Eg; Convertiplane, Tilt rotor,
Tilt wing, Tail-sitter., vectored
thrust ,
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11. Convertiplane
Uses rotor power for VTOL and
converts to fixed wing lift in normal
flight.
an aircraft that takes off and lands
like a helicopter and is convertible
to a fixed-wing configuration for
forward flight
This aircraft that converts in
flight to change its method of
obtaining lift.
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12. Vectored thrust
used powered-lift by
manipulating the thrust from the
engine or motor.
Plane diverted its engine thrust
downward for vertical takeoff
using rotatable engine exhaust.
Harrier jump jet is the known
example.
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13. Tiltwing
Propellers or rotors fixed to a
conventional wing and tilts the
whole assembly to transition
between vertical and horizontal
flight.
 The wing is horizontal for
conventional forward flight and
rotates up for vertical takeoff and
landing.
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14. Tail-sitter
A tail-sitter sits vertically on its tail for takeoff and landing,
then tilts the whole aircraft forward for horizontal flight.
When hovering the nose of the aircraft will try to point up for
“level” flight.
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15. Advantages of VTOL Technology
 energy efficient than those using jet engines.
 Remove the need for runway.
 Time and fuel saving.
 This makes already safe air travel even safer.
 Simplicity (cellular construction)
 Ease of Maintenance
 Safety
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17. Future development of VTOL
• Uber has pledged to launch its first flying taxis in
2020 using VTOL.
• Munich based aviation startup aims to offer a flying
taxi service that it will be five times faster than
travelling in a car.
• At the 2017 Geneva Motor show, Airbus showcased a
prototype flying hybrid car.
• Nasa has developed the battery-powered GL-
10,which take off and land vertically .
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18. Conclusion
VTOL enables a traveler to travel directly from
point A to point B.
 VTOL transport aircraft is just not economical
in the commercial world.
VTOL technology has an important role for
future development of aviation field.
 VTOL is suitable for use in manned or un-
manned aircraft.
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19. REFERENCE
 VTOL AIRCRAFT WITH DISTRIBUTED THRUST AND
CONTROL , Journal by ‘Joslah VanderMey’ (2007).
 VEHICLES PARTICULARLY USEFUL AS VTOL VEHICLES
,journal by ‘Rafi Yoeli’ (2007).
 AIRCRAFT CAPABLE OF VERTICAL AND SHORT TAKE-OFF
AND LANDING , journal by ‘Gregory F- Heath’ (2007).
 VERTICAL/SHORT TAKE-OFF AND LANDING AIRCRAFT
,journal by’ Robert T. Clifton, Woodrow L Cook’(1989).
 HORIZONTAL AND VERTICAL TAKE OFF AND LANDING
UNMANNED AERIAL VEHICLE, journal by ‘Johny
sinson’(1999).
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20. QUERIES ?
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21. THANK YOU
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