HoverflySPORT™ User’s Guide
Page 29 of 67
4.5.2 Current vs. Wire Gauge
Stranded wire should always be used to build your wiring harness. Current actually flows mostly along the surface of a conductor (more so in
high frequency AC than DC) and as a result stranded wire can carry more current than solid wire simply because of the greater surface area.
This is one reason why battery cables in your car and welding cables are made up of many very fine strands of smaller wire. Copper
conductors also have resistance that increases with length. All wires in your system should be kept as short as possible to reduce this
resistance. Added length wastes power and your flight times will suffer. For example a 1 foot (~30cm) length of 12 AWG (American Wire
Gauge) used at 12V carrying 25A will consume 4 watts of power.
The following table may be used to determine the gauge wire that is used in different parts of your wiring harness. Consult an online AWG
vs. length vs. current calculator or reference to assure that the wire you choose is sized safely. After you build and fly your wiring harness
run your finger across the entire harness looking for hot spots. If you cannot touch the wire for more than 1-2 seconds then it is at 60-70
degrees Celsius. The insulator (PVC covering) on most wires cannot withstand temperatures greater than 70 degrees Celsius (TW, UF
rating). So if you can’t touch a wire or solder joint for more than approximately 5 seconds it is liable to fail at some point during operation.
Increase the gauge of your wire or re-solder the joint.
Summary of Contents for HoverflySPORT
Page 1: ...HoverflySPORT User s Guide ...
Page 4: ...HoverflySPORT User s Guide Page 4 of 67 HoverflySPORT ...
Page 44: ...HoverflySPORT User s Guide Page 44 of 67 4 10 3 Configurations and X FRONT ...
Page 45: ...HoverflySPORT User s Guide Page 45 of 67 4 10 4 Configurations Hex and Y6 FRONT ...
Page 46: ...HoverflySPORT User s Guide Page 46 of 67 4 10 5 Configurations Octo and X8 FRONT ...
Page 62: ...HoverflySPORT User s Guide Page 62 of 67 Screen shot of Setup Utility ...
Page 64: ...HoverflySPORT User s Guide Page 64 of 67 Appendix A Physical Dimensions ...
Page 66: ...HoverflySPORT User s Guide Page 66 of 67 Appendix C Quick Start Guide ...
Page 67: ...HoverflySPORT User s Guide Page 67 of 67 Appendix D Connection Reference ...