| Home |
| Search |
| Today's Posts |
|
#14
|
|||
|
|||
Subject: What are the pros and cons of a folding prop?
From: Rosalie B. We have a feathering prop (vs a folding prop) and we do get an increase of about 1/2 knot under sail, and it also backs better under power. I haven't tried to quantify the backing under power - it is just what we feel. Disadvantages are - you lose a bit of power forward because the blades are flat and the prop takes a bit more maintenance than a fixed prop. [We were sailing but had the engine on in neutral so the prop was not feathered - we were running the refrigeration- and when we had finished that, we turned off the engine and feathered the prop, and our speed increased 1/2 knot - same wind and current. Now I know this is not a completely scientific test, but it is significant to us. There are also people in our group who did tests with a fixed prop over a measured course, and then did the same tests with a folding prop over the same course and found a similar result.] grandma Rosalie Question. Your engine was running but you were in neutral gear. Why wasn't the prop feathered? i.e., does the prop "unfeather" when the engine starts or when you put it in gear? What causes the prop to feather? This is an area I'm not familiar with, though I frequently use VP/CP props. Shen |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| Rigid vang...pros & cons? | General | |||
Threaded Mode
