Sash and Mullion Strength Ratings (Pa)
The limiting strength factor on most awning and casement windows will be the sash and hardware under negative wind load. Basically stopping the sash from being sucked out of the building.
Serviceability strength ratings based on 1/180 metal deflection.
More span charts are shown in the AWS Specifier Manual.

For CAD files go to installation details

Sash
Frame	Frame	Sash	Frame	Frame	Sash
Height	Width	Strength	Height	Width	Strength
1600	700	3000Pa	1800	700	2574Pa
1600	900	2653Pa	1800	900	1951Pa
1600	1000	2374Pa	1800	1000	1745Pa
1600	1200	1974Pa	1800	1200	1449Pa
1700	700	3000Pa	2100	700	1574Pa
1700	900	2324Pa	2100	900	1190Pa
1700	1000	2078Pa	2100	1000	1063Pa
1700	1200	1724Pa	2100	1200	879Pa

Light Mullion
Frame	Frame	Sash	Frame	Frame	Sash
Height	Width	Strength	Height	Width	Strength
1800	900	3500Pa	2400	900	1764Pa
1800	1000	2999Pa	2400	1000	1607Pa
1800	1200	2632Pa	2400	1200	1376Pa
2100	900	2340Pa	2400	900	1380Pa
2100	1000	2139Pa	2400	1000	1253Pa
2100	1200	1849Pa	2400	1200	1067Pa