Small Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 8
Situational Awareness
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued New Clearance; Flight Crew Exited Penetrated Airspace
Human Factors; Airspace Structure
Aircraft X departed on a heading of 300 climbing to 4;000 feet. I first made radio contact with Aircraft X at approximately 5 miles northwest of OMA. On initial call I climbed Aircraft X to 8;000 feet and turned to heading 220. As a single turboprop aircraft I expected the aircraft to make a 400 foot climb within 1-2 miles which they did not. On the heading 220 the aircraft entered a Minimum Vectoring Altitude (MVA) area for a tower approximately 8 miles west of OMA. When I became aware of the issue I turned the aircraft further to a 180 heading to avoid the obstruction and gave the instruction to expedite climb through 6;000 feet. I believe closest proximity to the obstruction was about 2 miles.As a controller with plenty experience in this facility; this is the first time I've had this type of situation occur. I would recommend to myself that I side with more caution with expectation of aircraft capabilities.
R90 TRACON Controller reported vectoring an aircraft into airspace at an altitude below the Minimum Vectoring Altitude.