AS350 BA General

Question 1

What is the overall length of a AS350BA rotors turning

Answer 1

Overall length rotors turning approx 13m (12.94m) / 43’

Question 2

What is the rotor diameter

Answer 2

Rotor Diameter approx 11m (10.69m) / 35’

Question 3

What is the width of the fuselage

Answer 3

fuselage width = 1.87m / 6’

Question 4

What engine type is fitted to the AS350BA

Answer 4

Engine type is an Arriel 1B modular design free turbine turbo shaft engine

Question 5

List and describe the Engine components

Answer 5

Engine is composed of the following - Single stage axial compressor - centrifugal compressor - annular combustion chamber with centrifugal fuel injection and ignition - 2 stage axial compressors driving the turbine - Single stage free power turbine - hydraulic governor using fuel as the motive fluid

Question 6

How does the hydraulic fuel governor work

Answer 6

The hydraulic governor uses fuel as the motive fluid. This consists of a free turbine governor which maintains a constant Nf by modifying the Ng set point of the gas generator governor set point. This gas generator governor controls the fuel flow rate.

Question 7

List the components and explain how power is transferred from the engine to the M/R and T/R

Answer 7

Engine to M/R coupling shaft with hydraulic pump drive pulley M/R Gearbox 2 piece Tail drive shaft T/R gear box

Question 8

What is the Main RRPM in powered flight

Answer 8

Powered Flight 394 RRP

Question 9

What is the normal RPM of the Power Turbine Ng

Answer 9

42452 RPM

Question 10

What is the RPM of the Engine to MRG and T/R coupling shaft

Answer 10

6125 RPM

Question 11

What is the RPM of the T/R

Answer 11

2086 RPM

Question 12

What is the skid width ?

Answer 12

2.2m

Question 13

What is the Stinger height ?