Welcome Back

Sign in to your PART66Online account

or use email
Forgot password?

Don't have an account? Register here

Q&A Forum

1131 questions found

Module 11. Aeroplane aerodynamics, structures and systems

The type of fluid in an oleo strut will depend upon

  • the type of seal material.
  • heat generated in operation of the system.
  • type of fluid most readily available.
Trevordodd asking:

i thought the answer to this question was type of seal material, does anyone know why its heat generated in operation as the type of fluid may break the seal down.

Module 2. Physics

When light rays enter a medium with a different refractive index they

  • split in two.
  • stay aligned.
  • change speed.
Richiegeee asking:

Will it not change direction too?

Module 8. Basic aerodynamics

On a high winged aircraft in a banked turn, which of the following are true?

  • The down-going wing loses lift producing a stabilizing effect.
  • The up-going wing loses lift causing a stabilizing effect.
  • The wing dihedral alone causes a stabilizing effect.
Kerongeorge asking:

Please explain this.

Module 7. Maintenance practices

At which frequency is the calibration of frequently used crimping tools carried out?

  • Bi-annually (every two years)
  • Annually (once per year)
  • Every 1000 crimps
marcoff asking:

How do I know when 1000 crimps were made?
The right answer should be every x time?

Module 12. Helicopter aerodynamics, structures and systems

The stalling speed of an helicopter blade

  • does not change.
  • is increased when the helicopter is heavier.
  • is increased when the helicopter is lighter.
YukonGhetto asking:

Blade stall is more likely when the HC is heavier. Does that not mean that the stalling speed of the blade is increased when the HC is lighter and will stall at a lower speed when the HC is heavier? Just getting ready for my A3 and this is confusing me!

We use essential cookies to keep you signed in, plus anonymous analytics to understand how the site is used. Cookie-based analytics is set only with your consent. See our Privacy & Cookie Policy.