GIB
Dash 8 100-200
Flap 15 vref: 12t-90kts through to 16.5t-105kts (add 10kts for ice protection on)
Flap 35 vref: 12t-83kts through to 16.5t-95kts
Dash 8 300
Flap 15 vref: 14t-93kts through to 19.5t-111kts (+10 for ice prot.)
Flap 35 vref: 14t-87kts through to 19.5t-102kts
Dash 8 400
?(someone else might know)