Monday, October 26, 2015

October 26 Update

It's been a busy couple of weeks doing many things but Lincoln-Page work, but I did get a few, although important, rather insignificant things done.

Aileron control stop

Elevator control stop
The L-P has no real control stops for the ailerons and elevator.  Basically, the ailerons stop moving when the slave struts bind at the end of their travel.  The elevator has an OK up stop when the horn hits the fuselage tail structure, but the only down stop is the rear stick hitting the back of the front seat.  Certainly room for improvement!

The top photo shows what I came up with for the aileron stop.  I welded a couple threaded bushings to the fuselage structure with adjustable stop bolts.  Then added a projection to the bottom of the torque tube that contacts the stops.

For the elevator, I was only concerned about the down stop, since this is where the elevator sits when you let go of the stick.  I just welded in an angled piece of steel between the horizontal stab. mount.  The elevator horn hits this and stops travel at about 30 degrees down.

The rudder works OK as-is.  Doesn't really have any stops, but the cable/rudder horn geometry prohibits excessive travel.

Cylinders ready for assembly





I also had to finish up fitting valves to a couple of cylinders. Original clearances call for .002" on the intake and .004" on the exhaust.  With the bronze guide liners I used, these were tightened up slightly, so on the intake I went with .0015" and .003" on the exhaust.  I would rather start out a little tighter.  With these liners if there is a problem, they can be opened up without removing the cylinders.  These are now ready for assembly.

Prop hub




The parts I took for nickel plating also got finished.  These were all done in the original Watts nickel process (dull finish).  The prop hub is done and the parts for the Miller overhead.
Water outlets/rocker arm supports

Close-up of water outlet

Miller roller rocker arms with fresh nickel plating



So for now, I am going to continue with both airframe and engine work.  Next on the airframe is fitting up the fuel tank.  On the engine, I am getting it ready for assembly.  I'll update engine progress on all posts and I'll also devote one complete post when it is finished, reviewing the overhaul.  So long for now.....



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