// Declaracao de variaveis:
params ["_heli"];

private _rope = _heli getVariable ["hoistrope", objNull];

if (isNull _rope) exitWith {};

private _targetLength = 25;
private _duration = 16;
private _currentLength = ropeLength _rope;
private _speed = ((_targetLength - _currentLength) max 0.01) / _duration;

// Extensao do cabo com duracao alinhada ao audio do guincho.
ropeUnwind [_rope, _speed, _targetLength, false];