224 kts was Vmo and we regularly used that in clear/still air. 180 kts was the standard descent speed and rough air descent speed. If you have ever had a look inside the rear end of these things they are built light. As a consequence there used to be a lot of back end movement at speed. It was also tricky slowing down from 224 kts to the gear speed of 168 kts and flap speed of 144 kts. Torque was not allowed below 40 PSI except very briefly (to reconfigure but very much frowned upon as well as being an admission that one had cocked up). In fact later the recommended minimum torque limit was moved up to 60 PSI. This was all due to layshaft shuffling in the transmission which would cause premature wear and ultimately failuire.
I can remember that the ground course took 3 days just to cover how the prop works and I never did fully understand what the third oil line did

Also the pneumatic steering and brakes took a lot of getting used to ...very easy to become a great hissing monster weaving down the runway with the steering and brakes totally out of sync.
The gust lock was also a real back killer....claimed many. Still it was an awesome training machine.
Back then the travelling public just didn't know how good they had it. A 40 or 48 seat aircraft serving the likes of Kerikeri, Kaitaia, Whakatane, Wanganui etc etc etc all with tea or coffee and 2 cabin attendants (later 1). It has taken us 20 years to get back to somewhere near that with the Dash 8 and Q300 but they still don't cover such an extensive network that we used to.
A shame there is just ZK-NAO left.