Test your aviation knowledge: Constant Speed Unit Quiz.

[@lasabito517]

Great quiz!

[@Nixaarka]

I got everything correct!

[@johnfitzpatrick2469]

Small wings spinning around really fast!
🌀

[@zxcasd0159]

9/10, wrong at #2, I can get the idea of answer C, but I was wondering, in our DA40NG,
if I advance the throttle, still, I think the RPM will change,
because we have a different control unit???
cause like Cessna etc, this answer apply to those aircraft have a blue pitch control unit, right???

[@sachinkumar064]

Can you please explain the answer for the 9th question? How will the blades move to fine pitch?

[@flightclubonline]

Imagine this propeller (aeroplane) is stationary on the ground. Without the CSU, the free moving blades would naturally assume an angle of attack that has least air resistance when the propeller starts spinning around. This angle of attack would be around zero degrees. This means that the blades would not scoop up much air and not generate much thrust.

[@ezanchi5422]

@@flightclubonline I believe they would move into negative pitch because even at 0 degrees they are still producing some small amount of thrust/lift. Am I wrong?

[@einkonto1401]

​@@ezanchi5422wouldn't the air balance out the negative pitch ? Because isn't negative pitch just coarse pitch but the other way

[@amariagomesbackup1479]

#Number 3 the answer should be: fine pitch, high angle of attack and high RPM, right?

[@KitsonHeart]

5/10 again, but this time cuz of pure luck