Anderson casement Crank

A quick learner says:
The far left arm is about 3" and the arm connected to the main crank is about 5"
When it opens the 3"arm actualy pushes out the sash....can you help?
Thank you
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Casey from SWISCO responded:

Hello,

Tale a look at our Andersen 39-146 and 39-147 operators and see how the dimensions compare to yours. Thank you!

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