Skyhawk 172/Cutlass 172
Flight Crew Commercial; Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 250; Flight Crew Total 1050; Flight Crew Type 500
Aircraft Equipment Problem Critical
Air Traffic Control Issued New Clearance; Flight Crew Landed As Precaution; Flight Crew Requested ATC Assistance / Clarification
Aircraft
During climb lost 400 rpm with full throttle. Airspeed began to decrease; I took flight controls from student. I returned to level flight; rpm increased slightly; then back down to 2100 with full throttle.Engine began to shake intensely and making unhealthy sounds. [I] proceeded direct for the numbers at [the nearest] airport. ATC Cleared me into Class B airspace.I began to trouble shoot issue per POH engine roughness and tested both mags with a 125 drop in each. I set myself for a high approach should my engine fail. Engine roughness continued throughout flight. Landed safely.
C172 Instructor Pilot reported landing safely after experiencing loss of power and engine vibrations.