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17. The First Flight ................................................................................................................................................... 51
18. Maintenance and Repair ................................................................................................................................... 53
a) Regular Cleaning ........................................................................................................................................ 53
b) Replacing the Rotors ................................................................................................................................... 53
c) Replacing a Motor ....................................................................................................................................... 53
d) Replacing a Radial Arm .............................................................................................................................. 54
e) Replacing the Complete Frame .................................................................................................................. 54
f) Replacing the Stabiliser Plate ..................................................................................................................... 54
19. Disposal ............................................................................................................................................................. 55
a) General Information .................................................................................................................................... 55
b) Batteries and Rechargeable Batteries ........................................................................................................ 55
20. Technical Data ................................................................................................................................................... 56