Cessna 152
Flight Crew Commercial; Flight Crew Instrument; Flight Crew Flight Instructor
Flight Crew Last 90 Days 47; Flight Crew Total 528; Flight Crew Type 180
Troubleshooting
Aircraft Equipment Problem Critical
Flight Crew Landed in Emergency Condition
Aircraft
We took off Runway XX to practice some night takeoffs and landings. Upon the second takeoff somewhere around 600-700 ft the rpm dropped drastically then the engine power dropped and we could not climb. Almost simultaneously I took control from my student because I could hear stall warning and the airplane was getting uncontrollable [quickly] so I pitched down [advised ATC] and landed on Runway YY (opposite direction of the runway we took off from) with a tailwind. Just about 15 ft I could hear the engine rev up again.
C-152 instructor pilot reported power loss during initial climb that resulted in a return to the departure airport.