Hi all:
I would like to post a question regarding how a constant speed propeller works. Or rather, how to operate it.
I have a Piper Arrow Turbo IV 1979 with a constant speed.
Now, I realize that most of you understands this topic well and I probably will look like a tool... Nevertheless, I am confused.
When you are climbing you want the propeller to take smaller chunks of air and to operate at a high speed. But, when you level out you will want the prop to bite off greater chunks. So, why do we reduce the rpm when levelling out? And, when we pull the controllever back, are we then automatically reducing the rpm AND the blade angle?
What if I want to push on with a high rpm, is that not possible then?
What is really the diffence compared to a fixed propeller? To me, it does just the same: you climb at a high rpm and a fixed blade angle. When levelling out, you just put the throttle back to reduce the rpm.
Furthermore, I finf that the manifold pressure controls the rpm and not the prop. Or, is it so that the prop is constant speed only in a set interval of rpm?
Sorry for these probably stupid questions. Hope anyone can shed some light over my darkness.Kind regards to you all.
Lars
I would like to post a question regarding how a constant speed propeller works. Or rather, how to operate it.
I have a Piper Arrow Turbo IV 1979 with a constant speed.
Now, I realize that most of you understands this topic well and I probably will look like a tool... Nevertheless, I am confused.
When you are climbing you want the propeller to take smaller chunks of air and to operate at a high speed. But, when you level out you will want the prop to bite off greater chunks. So, why do we reduce the rpm when levelling out? And, when we pull the controllever back, are we then automatically reducing the rpm AND the blade angle?
What if I want to push on with a high rpm, is that not possible then?
What is really the diffence compared to a fixed propeller? To me, it does just the same: you climb at a high rpm and a fixed blade angle. When levelling out, you just put the throttle back to reduce the rpm.
Furthermore, I finf that the manifold pressure controls the rpm and not the prop. Or, is it so that the prop is constant speed only in a set interval of rpm?
Sorry for these probably stupid questions. Hope anyone can shed some light over my darkness.Kind regards to you all.
Lars
