24 a and 24 b are located in the air unit 1 at the front of the system 10 see fig7 the motors 42 a and 42 b are located on the right side of the holding compartment 3 the electric heater 60 can be placed inside the mixing container 2 and connected to the control panel 92 by its cable 60 a the panel 92 is powered through its input electric cable 94 from a portable or fixed power supply the control panel 92 should be designed to control each bucket 44 a or 44 b each fan 24 a or 24 b and the heater 60 separately and manually for emergency u2014 fast acting u2014 one switch would automatically activate a fast sequence of 1 very high temperature from the heater 60 2 a pouring of a bucket 44 a or 44 b or both and 3 both fans 24 a and 24 b on a moderate speed the air flow a should be just fast enough to blow the smoke out but not too fast as that could cause the temperature of the heater 60 to be lowered too much a servo motor 42 a or 42 b should be able to turn a bucket 44 a or 44 b respectively into several positions between upright and maximum pouring and back refer to fig1 and 2 again the system 10 if reduced to approximately half its size will be able to fit on many vehicles a means for generating an air flow through the smaller system only one fan 24 a or 24 b will be used for this smaller size a means for holding a smoke screening composition before pouring it here will be two buckets like buckets 44 a.