You can turn the handle into horizontal position, open the window, then turn the handle all the way up , and it will fall a little forward, like both modes combined, and seemingly hanging on just the bottom hinge (it’s not, there’s just a retracting bar at the top hinge).
You can also usually lock the second mode mid-way by jamming the handle at 3/4 position.
Go on…
You can turn the handle into horizontal position, open the window, then turn the handle all the way up , and it will fall a little forward, like both modes combined, and seemingly hanging on just the bottom hinge (it’s not, there’s just a retracting bar at the top hinge).
You can also usually lock the second mode mid-way by jamming the handle at 3/4 position.
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I’ve lived in a house with these windows for the last 15 years, and didn’t know this.