PROPELLER BLADE HEATER MAT. THE PRODUCT IS USED IN AN AIRCRAFT AND COMPRISES OF A MAT MADE FROM LAYERS OF NEOPRENE RUBBER, ENCLOSING A RESISTANCE WIRE ELEMENT. THE MAT IS ATTACHED TO A REBATE, ALONG THE LEADING EDGE OF THE BLADE ON THE INBOARD SECTION, WHERE THE BUILD-UP OF ICE WOULD NOT BE SELF-SHEDDING, DUE TO LOW CENTRIFUGAL FORCES. POWER IS APPLIED TO THE HEATER IN CYCLIC SEQUENCE BY A CONTROL UNIT (NOT INCLUDED IN CLASSIFICATION), WITH 'ON' TIME SET, SUCH THAT THE ICE BOND IS WEAKENED TO ALLOW LOWER CENTRIFUGAL FORCES TO DISPLACE THE ICE. THE 'OFF' TIME IS SUCH THAT A SMALL ICE LAYER IS ALLOWED TO BUILD UP TO GIVE A MASS THAT CAN BE SHED DURING THE ON CYCLE. POWER OUTPUT 1202 WATTS.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 8516 ELECTRIC INSTANTANEOUS OR STORAGE WATER HEATERS AND IMMERSION HEATERS; 8516 ELECTRIC INSTANTANEOUS OR STORAGE WATER HEATERS AND IMMERSION HEATERS; GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 851629: ELECTRIC SPACE HEATING APPARATUS AND ELECTRIC SOIL HEATING APPARATUS: CN CODE 85162999 OTHER THAN ELSEWHERE SPECIFIED WITHIN THIS HEADING. ALSO CLASSIFIED IN ACCORDANCE WITH:- NOTE 2(F) TO SECTION XVII HSEN NOTE (B) (6) TO HEADING 8516