Can anyone ID this engine component?

[SlipBall]

(quote)
That would suggest that planes with this system would, in effect, have a
limited number of prop pitch settings (as many as holes on the disk).



It appear's that the setting was in increment value of five (5)

[KG26_Alpha]

The holes are more likely to be for attaching and adjusting the linkage, the fact that there's so many of them is to adjust movement set by the throttle.

The position of this set the props rpm limit and the governor controls the overspeed/underspeed condition of the propeller.

The holes are not related to the pitch angles


"The propeller governor maintains a constant engine speed by controlling propeller pitch. Engine speed is selected by a cockpit control connected to the governor speed control shaft."


EDit

Shoshi Tiger had explained it well enough.

[SlipBall]

It's not likely that the holes are for a linkage point because of the interference of the so called "pin' area (its clearly butted against the disk), there would be no clearence for the linkage mechanical attachment if the disk is designed to rotate 360 degrees. We are all just guessing here, but I think a ball detent is the most likely explanation.

[KG26_Alpha]

Originally Posted by SlipBall

It's not likely that the holes are for a linkage point because of the interference of the so called "pin' area (its clearly butted against the disk), there would be no clearence for the linkage mechanical attachment if the disk is designed to rotate 360 degrees. We are all just guessing here, but I think a ball detent is the most likely explanation.

definitely not

this is what I mean by the holes are used for installing linkages

[SlipBall]

[quote=KG26_Alpha;123649]definitely not

this is what I mean by the holes are used for installing linkages




If you follow the shaft that's attached to the disk, you will notice a cut gear on that shaft...that tells me that the disk is designed to rotate 360

[KG26_Alpha]

[QUOTE=SlipBall;123652]

Originally Posted by KG26_Alpha

definitely not

this is what I mean by the holes are used for installing linkages




If you follow the shaft that's attached to the disk, you will notice a cut gear on that shaft...that tells me that the disk is designed to rotate 360

no it cant turn 360

the shaft only moves up and down about a 1/4 turn to apply tension to the spring.

Anyway thats irrelevant to the point of the disks purpose which is to attach cable components for rpm position.

[SlipBall]

[quote=KG26_Alpha;123655]

Originally Posted by SlipBall

no it cant turn 360

the shaft only moves up and down about a 1/4 turn to apply tension to the spring.

Anyway thats irrelevant to the point of the disks purpose which is to attach cable components for rpm position.

OK then, thank's