PA-34-220T Turbo Seneca III
Flight Crew Multiengine; Flight Crew Flight Instructor; Flight Crew Commercial; Flight Crew Instrument
Flight Crew Last 90 Days 139; Flight Crew Total 1618; Flight Crew Type 77
Training / Qualification; Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Ground Strike - Aircraft; Ground Event / Encounter Gear Up Landing
Aircraft Aircraft Damaged
Human Factors
I was giving instruction to student for Commercial Multi add on. After 1 hour of flight; we returned to practice touch and goes and short field landings and takeoffs.Student landed airplane; then retracted the flaps and accelerated for take off and student suddenly retracted the landing gear. I took the controls to save the airplane but nose went down; I put the landing gear down but it was too late and propellers hit the ground. I aborted the take off; retarded throttles and secured the engines and fuel system was shut off. After notifying Tower electrical system was shut down as well.To avoid this as a Flight Instructor [I will] put my hand on the landing gear lever to avoid student handling it.
PA-34 Instructor Pilot reported his student retracted the landing gear before takeoff on a touch and go; resulting in a prop strike and gear up landing.