Tilt windows vs. tilt-and-turn windows experiences?

Fully opening for fresh air or cross-ventilation is significantly better.

Today, controlled residential ventilation is standard. Therefore, this argument no longer applies ;)

I can understand fixed glazing because of the view, although here you can only see the neighbor’s wall. So rather negligible ;-)

Then there is actually no real reason for a tilt-only window, except for the WAF.

Do you have a controlled residential ventilation system? If yes, I would dare to go with the simple tilt window, since fresh air comes in from above. For cleaning, you can almost lay the windows flat by removing the brace.

If you don't have a controlled residential ventilation system, I would definitely choose double-leaf windows, that is clearly better for ventilation.

We had two such tilt windows in the old house, about 160 long and no controlled residential ventilation. It regularly annoyed me because ventilation was only possible with the window tilted, and that was not enough for me. I could have kicked myself every day for insisting on it for aesthetic reasons. Cleaning was not that dramatic for me. One window had a higher sill, so my husband had to help me lay it down for cleaning, otherwise it went well.

Aren't there any windows that can be rotated around the horizontal axis anymore? A sash that can be opened completely for ventilation and cleaning.

It's called a tilt window. Old school, but still available. It will be a special order - I would estimate around €2,500 + X for it...

We have planned a 170x75 cm window on the west side of the house on the ground floor and first floor. [...] Does the forum have any idea how this could possibly be "solved" differently?

If someone in the forum has a crystal ball, maybe. Always these single-question threads where people don’t link their main thread with floor plans and elevations. Since I can’t read your mind, my answer is at least provisionally just "42," even though it would otherwise very likely be much more informative. But I currently don’t have time to crawl through your thread history.

I would definitely choose a 1.70 m wide window as a stulped version for the reasons mentioned. Otherwise, it sags "in the ropes" (i.e., crooked) after 2-3 years anyway. Our window maker always says that something like this should be forbidden (tilt-and-turn at this width).

I would definitely choose a 1.70 m wide window in the stulp variant for the reasons mentioned. Otherwise, it sags "in the ropes" (i.e., becomes crooked) after 2-3 years anyway.

That’s why it is double-leaf – but whether stulp or post does not matter for that.