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M.A.M School of EngineeringSiruganur, Tiruchirappalli - 621 105

Department of Aeronautical Engineering

AERONAUTICAL LAB !OTOS"

Aircraft" CESSNA #$%

 The Cessna 152 is an American two-seat, fxed triccle gear, general

a!iation airplane, used primaril "or #ight training and personal use$ %t was &ased on

the earlier Cessna 150, including a num&er o" minor design changes and a slightl

more power"ul engine running on 100'' A!iation (asoline$

Lo& Spee' Su()onic &in' Tunnel

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'ow-speed wind tunnels are used "or operations at !er low )ach num&er,

with speeds in the test section up to *+0 mh ./ 1* ms, )  0$* The ma &e o" 

open-return tpe .also nown as the 3i4el tpe, or closed-return #ow .also nown

as the randtl tpe with air mo!ed & a propulsion sstem usuall consisting o" 

large axial "ans that increase the dnamic pressure to o!ercome the !iscous losses$

hoto ela)tic Apparatu)

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hoto-elasticit is a !isual techniue "or measuring stresses$ 7hen a photo

elastic material is strained and !iewed under polari8ed light, &eauti"ull colored

pattern can &e o&ser!ed$ This colored pattern pro!ides in"ormation on stress-state

o" the strained material$

Blo&er Balance

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A &alancing machine is a measuring tool used "or &alancing rotating machine

parts such as rotors "or electric motors, "ans, tur&ines, disc &raes, disc

dri!es, propellers and pumps$

*a) tur(ine Engine

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A gas tur&ine, also called a com&ustion tur&ine, is a tpe o" internal

com&ustion engine$ %t has an upstream rotating compressor coupled to a

downstream tur&ine, and a com&ustion cham&er in &etween$

+ree ,et -all ,et apparatu)

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 The apparatus is used to determine !alues o" discharges against the di4erent

schemes o" orifce .shapes$ %t consists mainl o" a tan with a small orifce on one

side near the &ottom o" the tan$ Along with inlet hose, ad9usta&le o!er#ow pipe,

"rame a recording sstem is pro!ided that is used to measure the 9et o" water

produced "rom the orifce when in used the recording sstem consists o" a &oard

and ad9usta&le needles$ A linear scale is pro!ided to measure the height o" meter inorder to maintain the #ow rate$