Current local employers include factories making plastic bottles and de-icing products.
The plane had modified generators on board, additional tanks and de-icing equipment for propellers and wings.
Some models featured de-icing boots as an option.
It is principally used for industrial purposes and for de-icing highways.
Originally the series was reserved for de-icing and, later, sandite units.
It is used in some aircraft cockpit windows for de-icing or anti-icing by passing electricity through it.
In the wing space, a hot air feed was fitted, using heat pumped through lagged pipes from the engines to warm up and de-ice the wings.
Colour-dyed fluid is preferred as it can be confirmed easily by visual observation that an aircraft has received a de-ice.
