Real Property vs. Personal Property | Differences & Examples

Airplane Technology on Instagram: "🛑 Can a helicopter destroy itself in 5–10 seconds? Yes — and it’s not a myth. It’s called **Ground Resonance**, and it’s one of the most dangerous phenomena in helicopter engineering. 👇 🌀 What is Ground Resonance? When a helicopter is on the ground and one of the rotor blades falls out of phase, the vibration couples with the landing gear. If the frequencies match, resonance starts — vibration grows exponentially until the helicopter literally shakes itself