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Date:  4-21-2012
Number of Hours:  20.00
Manual Reference:  Composit Design
Brief Description:  Main and Always Hot Fuse and Distribution Panels

I spent a lot of time designing a accessible fuse and distribution panel for my always hot circuit and main fuses which do not have to be accessible during instrument flight conditions. I will use automotive fuses in these fuse holders and it provides two separate distribution panels. Additionally, I have a main distribution panel, an 'essential' distribution panel and and radio distribution panel with all the fuses required for insturment flight. The composit design panel is a self-contained power distribution assembly and uses heavy duty printed circuit boards to replace most of the buss bars commonly found in experimental aircraft. There are several buss circuits used in this design. The Main Buss (Lights, Strobes, Nav Lights, Fuel Pump, and Accessories) is powered from the switched battery output of the master solenoin. The switched Radio Buss (Radio 1, Radio 2, Xponder, 2 separate GPS, Audio) is powered ths same as the main buss but can be switched for avionics shut down. This buss also employs a filter circuit that attenuates noise and spikes on the avionics power supply. This design also employs an Essential Buss which powers all the 'glass' avionics (Grand Rapids EFIS, Dynon EFIS, GRT Engine Instruments and Control Unit, and the Flight Instruments). The essentials can be powered directly by the Main Buss or from three independent back up batteries for triple redundancy.
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Hinged/Drop-down fuse holders

Hinged/Drop-down fuse holders

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Fuse holds dropped down

Fuse holds dropped down

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Main buss, Radio buss, and essential buss

Main buss, Radio buss, and essential buss

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