Aileron Balance

bdq

bdq

New member
Hello folks! I am new to the club and am posting this message on both the Cruisemaster and Viking forums.

For the past 4 years I've been flying a friend's 1950 Cruisemaster 14-19 with a 260 hp IO-470. Lovely airplane! Lucky me!

We are replacing the left aileron and are trying to determine the static balance. We are hoping to find the exact manufacturer's specifications to learn the correct weight distribution. For example the aileron of a Bonanza requires a nose heavy balance of 0.2 inch pounds.

Does anyone know the figure for a Cruisemaster 14-19?

Or for a Viking which apparently has the exact same ailerons?

Would anybody have details on the procedure to balance the aileron?

Thanks!

Bryan
 
Call the factory and talk to Craig. I re-balanced my ailerons last year on my 14-19, the right aileron I did add some weight to the balance arm as it was out of balance quite a bit, the rollers on the actuating arm had actually made a groove in the aileron track where the rollers were moving up and down. The factory can probably email you the sheet, cant remember the details, i kind of remember 1.9 inches back from the hinge line with 11 ounces balances it... just cant remember for sure, let me look in the shop to see if i can find it. The ailerons on the Viking are the same.

Dan
 
Boy was i off on that one, found the sheet.

Pivot Points for Aileron re-balancing:
Rib #8 (inboard rib)
Rib #14 (second from the end)

The Aileron is to be balanced 100% +- 22 inch oz.

The Aileron balance weight(192571) is trimmed at assembly to balance the aileron.

The Aileron Actuating Arm (195347 or 195350), already installed, must be accounted for in the balancing procedure (approx. 41 inch oz.)

sample: add a 10oz weight 4.1 inches back fo the aileron pivot center line.


How to do it?

support the aileron at the inboard and outboard hinge by bolts, or pins etc, with the actuating arm attached to the aileron. Measure back towards the trailing edge 4.1 inches from the center line of the supporting bolts, pins etc, and add 10oz on this spot. The bottom of the aileron should be parallel with the table, bench, etc, if not add or subtract weight to the balance weight that projects forward of the aileron.

Verify the procedure with the factory however.

Dan
 
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