GA pilot reported a class C airspace incursion.

Attributes
ACN	1651179
Time
Date	201906
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	PA-18/19 Super Cub
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	VFR Route
Flight Plan	VFR
Person 1
Function	Single Pilot
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Commercial
Experience	Flight Crew Last 90 Days 45 Flight Crew Total 10500 Flight Crew Type 500
Events
Anomaly	Aircraft Equipment Problem Less Severe Airspace Violation All Types Deviation - Procedural Published Material / Policy Deviation - Procedural FAR

Narrative:

Following departure from the airport; I felt the airplane climb at an excessive angle. Further investigation revealed that the electric trim was in full 'nose up' position; and upon resolving the problem; my altitude was 2;500 feet. At that location; the floor of the class C airspace was 2;200 feet. I was in the class C airspace (300 feet above the floor of the airspace) for 3 minutes and immediately proceeded to descend to a correct altitude. Based on in-cockpit ads-B information; there were no other aircraft in the vicinity. I was the only pilot flying this particular aircraft on this day; and this problem was; at least partially; caused by a poor pre-flight inspection and not checking the trim position prior to takeoff.

Original NASA ASRS Text

Title: GA pilot reported a Class C airspace incursion.

Narrative: Following departure from the airport; I felt the airplane climb at an excessive angle. Further investigation revealed that the electric trim was in full 'nose up' position; and upon resolving the problem; my altitude was 2;500 feet. At that location; the floor of the Class C Airspace was 2;200 feet. I was in the Class C airspace (300 feet above the floor of the airspace) for 3 minutes and immediately proceeded to descend to a correct altitude. Based on in-cockpit ADS-B information; there were no other aircraft in the vicinity. I was the only pilot flying this particular aircraft on this day; and this problem was; at least partially; caused by a poor pre-flight inspection and not checking the trim position prior to takeoff.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.