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

http://www.vincesrocket.com/2003-06-30/prop5.JPG

[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:)

[QUOTE=SlipBall;123652]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.

[quote=KG26_Alpha;123655]


OK then, thank's

would it be a Flyweight, by any chance?


it spins and creates the forces necessary to determine underspeed or overspeed.... like a flywheel operated torsion wrench. (instead of levering the torsion wrench on a bolt head for example, to the specified torque as in your car's engine head bolts, the torsion levering is performed by RPM... kinetic energy, with the holes used to balance the wheel itself)

at least that's what the cut away engineering drawing (plus blurb) from the earlier link, looks to be ?

No

you sure?


http://www.enginehistory.org/Propell...HydPropGov.jpg






also... http://www.thaitechnics.com/propelle...control_2.html


http://www.thaitechnics.com/propelle...rspeed_gov.jpg


don'tcha just hate naming conventions, o lack of?

Yes