Single Arm Window Crank

Thanks for reaching out to us, George. We may be able to help supply this operator, but the length of your arm may be a problem. From the center of the wheel to the center of the gear, yours appears to be around 11-1/2" long. Unfortunately, we don't have that size. The best options we have are our 39-027E and 39-028E, which are 9-1/2" long, and our 39-013 and 39-032, which are 13-1/2" long. Do you think you could get either of these sizes to work?

Personally speaking, I think it might be better to go short than to go long. With a longer operator you risk the window not be able to close the last few inches, while with a shorter operator the only risk is the window not being able to open those last inches. 

Let me know what you think.