This is a Delmag jumping jack. It was an old school method of compaction . How it works is that when the throttle is engaged, the diesel engine fires and unleashes a violent mechanical or explosive force that compresses and then releases the springs, launching the entire 60 to 100-kg machine into the air.

THE RED DYE GASKET CHECK

Simulated engine failure during training. Practicing scenarios like this builds the habits and decision-making skills needed to respond methodically under pressure. In aviation, preparation matters long before an emergency ever happens. The student in this case reacted well given he is a newer student. #aviation #flighttraining #emergencyprocedures #studentpilot #cfi

Upgraded fuel pipeline ensures smooth oil supply, avoiding flameout. Reliable performance under intense continuous work. #powertool #gasolinechainsaw #wholesale #fyp #b2b

This 5th Gen Cummins Came From Alaska for One Reason