Rear mount wood window operator

A home owner from USA says:
11 inch
The bar is 11.25 inches long.
The windows that I have have a channel at the bottom that a wheel rides in and they are rear mounted. Maybe a shorter arm might work?
The height of the wheel is 5/16" tall and the groove that the wheel rides in is 9/16" wide.
Yes I need 3 left and 3 right operators for wood windows.
39-022 looks like the ones I ordered already and the wheel isn't tall enough.
Thumbnail of the uploaded file named James Operator #1.PNG
Thumbnail of the uploaded file named James Operator #2.PNG
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Dave Sr. from SWISCO responded:

Hello,

Your hardware is from an older casement window that is no longer available. You will need to retrofit an operator like the 39-028E , along with the 39-533 track and other related hardware, to replace your original window hardware. Take note that you might need to make a new modified wood sill cover to accommodate the newer style operator. Thanks for posting. 

A home owner from USA says:
I don't believe that there is room at the bottom of the sash to install the rail.
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Dave Sr. from SWISCO responded:

Modifications would be necessary and, as we mentioned, you would need to create a new wood sill cover to accommodate the new hardware. Unfortunately, this would be our best replacement option for your repair. 

A home owner from USA says:
What covers would I need for the operators?
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Casey from SWISCO responded:

These operators come with covers as shown in the product image below. 

Dimensions for 39-027e
Dimensions for 39-027e

A home owner from USA says:
Will the Crank Handle, 11/32" 39-114L work with these operators?
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Casey from SWISCO responded:

Yes, the 39-114L handle is compatible with the operators we've recommended.

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