Gyrocopter.pptx

RAJARAJESWARI COLLEGE OF ENGINEERING

RAJARAJESWARI COLLEGE OF ENGINEERING

VISVESVARAYA TECHNOLOGICAL

VISVESVARAYA TECHNOLOGICAL

UNIVERSITY

UNIVERSITY

JNANA SANGAMA, BELGAUM-590014, KARNATAKA, INDIA.

JNANA SANGAMA, BELGAUM-590014, KARNATAKA, INDIA.

TECHNICAL SEMINAR ON

TECHNICAL SEMINAR ON::

“GYROCOPTERS”

“GYROCOPTERS”

Under the Gud!n"e #$ 

Under the Gud!n"e #$ 

%EPARTMENT OF MECHANICAL ENGINEERING

%EPARTMENT OF MECHANICAL ENGINEERING

&'() R!*#h!++) ,u*-!+!.#du) M/0#re R#!d) 1en.!+uru 2 34556(7

&'() R!*#h!++) ,u*-!+!.#du) M/0#re R#!d) 1en.!+uru 2 34556(7

RA,ESH S RA,ESH S 8'RR'5ME595 8'RR'5ME595

ANAN% A

ANAN% A

CONTENTS

Introduction

History

Components of Gyrocopter

Aerodynamics of Gyrocopter.

Models of Gyrocopters.

Application.



An autogyro also known as gyroplane, gyrocopter,

or rotarplane, is a type of rotorcraft wic uses an

unpowered rotor in autorotation to develop lift, and an

engine!powered propeller, similar to tat of a "#ed!wing

aircraft, to provide trust.



An autogyro is caracteri$ed %y a free!spinning rotor

tat turns %ecause of passage of air troug te rotor

from %elow.



 &e rusing air spins te rotor as te air craft is lift

forward %y an engine driven propeller.



Modern gyroplanes use a puser propeller and are ligt

and maneuvera%le.

'panis inventor (uan de Ia Cierva %uilt te "rst )Autogiro) in *+- _{&e "rst controlled igt occurred on (anuary */, *+-. Cierva was}

inuenced %y te 0rigt 1roters2 plane design %ut wanted to create a plane tat ew %etter at low speeds.

 &e autogyro tat successfully ew in *+- was Cierva2s fourt

design. His "rst tree autogyro designs failed %ecause of a rigid rotor wic caused te aircraft to tilt and provided an un%alanced lift

_{Autogyro kites were 3secret weapons4 used %y Germany in 00II}

*+5- saw te re%irt of interest in te gyroplane wit te invention

of Dr. Igor 1ensen2s patented )Gyrocopter.)

COMPONENTS OF GYROPLANES

_AIRFRAME

 &e airframe provides te structure to wic all oter components are attaced. Airframes may %e welded tu%e, seet metal, composite, or simply tu%es %olted togeter.

 _POERPLANT

&e power plant provides te trust necessary for forward igt, and is independent of te rotor system wile in igt. 0ile on te ground, te engine may %e used as a source of power to rerotate te rotor system

ROTOR SYSTEM

 &e rotor system provides lift and control for te gyro plane. &e fully articulated and semi!rigid rotor systems are te most common.

_TAILSURFACES

 &e tail surfaces provide sta%ility and control in te pitc and yaw a#es. &ese tail surfaces are similar to an air! plane and may %e comprised of a "n and rudder, sta%ili$er and elevator.

LANDING GEAR

 &e landing gear provides te mo%ility wile on te ground and may %e eiter conventional or tricycle. Conventional gear consists of two main weels, and one under te tail.

INGS

0ings may or may

not comprise a component

of te gyroplane. 0en

used,

tey

provide

increased

performance,

increased storage capacity,

and increased sta%ility

AERODYNAMICSOF GYROCOPTER

AUTOROTATION



A gyroplane rotor system operates in autorotation.



 &is means te rotor spins freely as a result of air owing up

troug te %lades, rater tan using engine power to turn te

%lades and draw air from a%ove.



_{6orces are created during autorotation tat keep te rotor %lades}

turning, as well as creating lift to keep te air! craft aloft.



Aerodynamically, te rotor system of a gyroplane in normal igt

operates like a elicopter rotor during an engine!out forward

auto rotative descent.

!ERTICAL AUTOROTATION

During a vertical autorotation, two %asic components

contri%ute to te relative wind striking te rotor %lades.

  _{7ne component, te upward ow of air troug te rotor}

system, remains relatively constant for a given igt condition.

  &e oter component is te rotational airow, wic is te

wind velocity across te %lades as tey spin.

 &is component varies signi"cantly %ased upon ow far from

GYROCOPTERS

 &rust is produced %y an engine!driven propeller.

 _{&e unpowered, freely turning rotor is tilted %ack as te gyro plane}

moves forward .

7ncoming airow troug te rotor causes it to spin, producing lift. &is

is called autorotation.

_{Always operates in autorotation, tus8} Cannot stall like "#ed wing aircraft.

_{6lies safely at low altitudes and low speeds.}

9o need for eavy main rotor transmission nor a tail rotor.

HELICOPTERS

 &e powered rotor produced %ot lift and trust, and is tilted forward. _{Can over, %ut powered rotor re:uires8}

Ade:uate forward speed and;or altitude to maintain igt in case of

GYROPLANE MODLES

Dominator Model <ltra ligt Model

 &ere are do$ens of gyroplane kit manufacturers

and models. Here are =ust a few of te most popular in te

<'.

1uttery Model

'parrow Hawk

Model

PAL"! De#$gn Fly$ng Gyrocopter Tr$cycle

 &e >A?!@ 79 is a two seat y%rid car

and gyroplane8 a personal air and land veicle.

 _{&e >A?!@ usually ies %elow B, feet}

*, mE, te airspace availa%le for uncontrolled @isual 6ligt Fules @6FE trac so tere will %e no interference from commercial air trac.

It runs on gasoline. It can reac speeds

of up to * km; ** mpE %ot on land and in te air.

 &e >A?!@ 79 as a very sort take oJ

and landing capa%ility, making it possi%le to land practically anywere

Converting te >A?!@ 79 from airplane

to automo%ile is a very easy process wic takes a%out * minutes.

AD!ANTAGES AND DISAD!ANTAGES

A&'antage# (co)pare& to a con'ent$onal a$rplane*

In tur%ulent air it still ies smootly wit e#cellent sta%ility due to its ig

rotor speed.

_{1ecause a gyroplane can y so slow tat it needs very little space to land.} 0ide speed range, wit a low minimum speed from 5 km; up to *

km;E.

6or te price of one elicopter you can ave  gyrocopters.

_{>ilot training is very easy as it is more safe to land tan a elicopter.}

D$#a&'antage# (co)pare& to a con'ent$onal a$rplane*+

_{A gyroplane as iger drag, so ma#imum speed and range are lower.}

<nlike a elicopter , a gyroplane cannot over and take oJ or land vertically. _{9o wincing capa%ility, since it is a small macine, its lifting capa%ilities is}

not more tan  persons.

CONCLUSION

K6lying an open air gyroplane is like riding a

ig performance motorcycle tat can yL

Gyrocopters can %e transported and stored on

a small trailer so you can easily take it to an air"eld of

your coice. 'ave te ig cost of anger fees and

aircraft tie down fees %y keeping your gyrocopter on

te trailer at your ome or %usiness. &e cost to keep

and maintain one of our gyrocopters is only sligtly

more tan tat of a large motorcycle. It is an

un%elieva%ly fun macine to y and can operate in

more windy conditions.

REFERENCES

_{177P' F6FD8 F7&7FCFA6& 6?QI9G HA9D 177P}