Yes observed the spoiler mixers on the other Boeing wings Marker Inbound.
That write up above was to relate to your query on relevance of load factor on Roll rates.
Originally Posted by
MarkerInbound
Never had a yaw damper failure in 13 years. Since Dutch roll is a high altitude high speed issue I wouldn't expect it to be an issue on approach. And Boeing has no limitation on minimum altitude for speed brake use. The only limitation is you can not have the boards up and flaps extended in flight.
The outboard flaps are unlocked as the flaps extend. Boeing figured if you are extending flaps you aren't going fast. There is a spoiler mixer in one of the wheelwells. As you turn the yoke past some point (I want to say 10 degrees but am not sure) it starts bringing up the down wing spoilers to increase the roll rate. It's not just a 727 thing, 737s and 747s all have spoiler mixers.