A/S Limitations:
Vne (Never Exceed): 187 KIAS
Vno (Maximum Structural Cruising): 165 KIAS
Vx (Best Angle of Climb): 78 KIAS
Vy (Best Rate of Climb): 91 KIAS
Vfe (Maximum Flaps Extended): 107 KIAS
Va1 (Design Maneuvering): 126 @ 4200 lbs
You should get at least this or similar data on the 3 prop A/C.