Anyway ...... what was the original question???
PS: Bell 47's come in different shapes and sizes - for example, the G2 has a much lighter rotor system and is therefore low inertia = get lever down very quick.
The G4 model has a similar blade inertia to a 206, so you can take quite a lot more seconds lowering the lever. Some say it is possible to perform an engine off landing with the G4 (and no doubt other types too), lift into the hover (without re-instating the engine), perform a quick spot turn and then land again...... all without any noise from the engine!!