Small Aircraft; Low Wing; 1 Eng; Fixed Gear
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 2
Situational Awareness
ATC Issue All Types; Deviation - Track / Heading All Types; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued New Clearance
Airspace Structure; Human Factors; Procedure
Aircraft X departed ZZZ Runway X on runway heading the Tower switched the aircraft to me on departure I believed this small faster climbing aircraft with the winds the way they were could turn and climb before getting into the MVA (Minimum Vectoring Altitude). I told the aircraft to climb to 060 and turn to a 290 heading as to turn tighter than the MVA. They climbed slower than I have seen [aircraft type] climb and took a much wider turn than anticipated. They just clipped the very edge of the ring for the MVA and allowed to Low Altitude alert to go off. I made them do a tighter turn to a 280 to get them facing away from the obstruction.This is a Controller mistake thinking an aircraft could do something in which it is capable of but a pilot may not.
Controller reported turning an aircraft in an attempt to clear an obstacle; but according to the reporter the aircraft turned slower than expected and crossed into a lower Minimum Vectoring Altitude.