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Contents

1. Main structural groups of A/C.

2. Basic requirements to be met by A/Cstructures.

3. Classification of A/C depending onstructural features.

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Main structural groups of A/C (1

1. Airframe group!

a. "ing.

b. #uselage.

c. $ail unit.

2. Airframe mec%anisms & systems!

a. Landing gear.

b. Control system mec%anisms

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Main structural groups of A/C (2

c. Mec%anisms poer actuators.

d. )e*icing de+ices.

e. ,oer plant! -ngine fuel system oil system firefig%ting

system etc.

3. Aircraft equipment group!

a. -lectronic automatics.

b. -lectrical equipment.

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Main structural groups of A/C (3

c. 0nstrument & oygen equipment.

d. ig%*altitude outfit.

e. Camera reconnaissance and cameragunnery facilities.

'. adar equipment group!

a. Communication.b. 4a+igation & reconnaissance means.

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Main structural groups of A/C ('

c. Counter*radar means.

d. 0##.

e. Control means6etc

. A/C armament group!

a. oc7et.

b. 8uns.

c. Bombs aboard t%e A/C

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Main structural groups of A/C (

d. Armament mounts.

e. :ig%ting de+ices & armament computers.

f. ,ara dropping equipments6etc

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Basic requirements to be met by

A/C structures1. ig% aerodynamic cleanness.

2. Lo eig%t of construction it%

necessary strengt% & stiffness.3. :implicity of operation.

'. -nsuring of %ig% reliability combat

sur+i+ability and flig%t safety. ,roduction effecti+eness.

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ustment of systems.

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-nsuring of %ig% reliability combat

sur+i+ability and flig%t safety (2 :ur+i+ability is ensured by!?sing duplicating systems.

)ouble control runs.

Ad+anced automated fire*fig%ting system.

Armored placing of t%e cre stations & +ital

units6etc.

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-nsuring of %ig% reliability combat

sur+i+ability and flig%t safety (3 #lig%t safety is ensured by!

ig% reliability of equipments.

8ood aerodynamic c%aracteristics of A/C.Abilities of pilot to counteract equipment failure post*

effects.

?se of special automatics pro+iding for combining

potentialities of t%e A/C it% p%ysiological abilities oft%e pilot.

Means for arning of dangerous flig%t conditions.

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,roduction effecti+eness

Lo labour consumption.

:imple mac%ining.

:%ort terms of industrial adoption.

eduction of costs.

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Classification of A/C depending on

structural features (11. $%e flig%t principle!

a. Airplane.

b. elicopter.

2. $%e purpose!

a. Ci+il

b. Military! #ig%ters bombers military cargo plant6etc.

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Classification of A/C depending on

structural features (23. $%e structural features!

a. $ypes number & location of engines.

b. :%ape number & location of ings.

c. $ypes of ta7e*off/ landing de+ices6etc.

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)efinitions (1

1. :trengt% is t%e ability of a structure to ta7e upit%out destruction definite eternal loadscreated under +arious operating conditions.

2. :tiffness is t%e ability a structure to resistdeformation under t%e action of a load.

3. eliabilityis a property of a construction of t%e

A/C to operate trouble free under definiteoperating conditions during a certain timeperiod.

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